IMGCrush 0.4.0 and IMGCrush_GUI 0.4.0 released
Announcing IMGCrush 0.4.0 and IMGCrush_GUI 0.4.0 , a new release bringing new features and bugfixes, as well as considerable speedup (even though it's still quite slow) IMGCrush is an image compressor capable of compressing files to user specified size or quality using common web image formats particularly well suited to optimize images for web sites. IMGCrush_GUI is a simple Tkinter GUI using basic subset of IMGCrush options. It should be replaced by a more advanced GTK or Qt GUI in future. Get IMGCrush and IMGCrush_GUI here: https://launchpad.net/icrush/+download (IMGCrush_GUI is on the bottom of the page) New features: -Recursive directory processing -Multiprocessing -GIF bit depths from 1 to 8 support -JPG grayscale support -deprecated (and removed some) resizing options Note that at this moment IMGCrush is still quite slow and experimental. More info: https://launchpad.net/icrush -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
[ANN] stdeb 0.4.2
stdeb produces Debian source packages from Python packages via a new distutils command, sdist_dsc. Automatic defaults are provided for the Debian package, but many aspects of the resulting package can be customized via a configuration file. An additional command, bdist_deb, creates a Debian binary package, a .deb file. stdeb: http://github.com/astraw/stdeb This email announces release 0.4.2. download: http://pypi.python.org/pypi/stdeb/0.4.2 Release 0.4.2 is a bugfix release fixing a couple issues. The most significant fix is that if a package specified XS-Python-Version in stdeb.cfg, the binary package wouldn't install the Python packages. No backwards incompatible changes were made with this release. -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
Python-URL! - weekly Python news and links (Nov 3)
QOTW: I consider import * the first error to be fixed ... - Robert Kern, author of PyFlakes, a potential replacement for Pylint and Pychecker, on his personal style http://groups.google.com/group/comp.lang.python/msg/5bf77b21b3b0caf2 Python 2.6.4 is out; it fixes some small but important bugs in previous 2.6.3 release: http://groups.google.com/group/comp.lang.python/t/44f4c166de5e6703/ PEP391: A new way to configure Python logging, using dictionaries: http://groups.google.com/group/comp.lang.python/t/3fc3138c22a50678/ Why do you use Python? http://groups.google.com/group/comp.lang.python/t/66ccb10d2da5b740/ Is there any value in forcing one class/function per module? (long thread): http://groups.google.com/group/comp.lang.python/t/1e0c1e2091539512/ A review of complex solutions to an almost inexistent problem shows constructive criticism in action: http://groups.google.com/group/comp.lang.python/t/d218212cabe9670b/ A user module may shadow a standard module of the same name - is it avoidable? http://groups.google.com/group/comp.lang.python/t/b31f74b6145c9d94/ copy.deepcopy() is not as deep as its name implies: http://groups.google.com/group/comp.lang.python/t/d827fd118189fe01/ A long thread about Web development: why to use templates, and why frameworks actually do help developers: http://groups.google.com/group/comp.lang.python/t/367025d4d9a2e15d/ Using a module as a place to store application global settings: http://groups.google.com/group/comp.lang.python/t/23e21edf1b232b32/ A simple list comprehension question leads to discuss mutability, identity, and Cousin Chuy's Super-Burritos: http://groups.google.com/group/comp.lang.python/t/17cfd91ece6ed54f/ Combining map, zip and filter into an equivalent list comprehension: http://groups.google.com/group/comp.lang.python/t/259976305282b0c0?q=map timeit: make sure you actually measure what you want, and not other code: http://groups.google.com/group/comp.lang.python/t/7ecae76e11f720ee/ Why do compiled C extensions on Windows use '.pyd' in their name instead of '.dll'? http://groups.google.com/group/comp.lang.python/t/c8d93871cc5f31dc/ Pyfora, a web forum about Python, was lauched recently. Will this fragment the community? http://groups.google.com/group/comp.lang.python/t/e6e0d99c995da697/ A guy's future book on programming Python doesn't fit standard practice (a long thread!): http://groups.google.com/group/comp.lang.python/t/6918784f36d147d2/ Everything Python-related you want is probably one or two clicks away in these pages: Python.org's Python Language Website is the traditional center of Pythonia http://www.python.org Notice especially the master FAQ http://www.python.org/doc/FAQ.html PythonWare complements the digest you're reading with the marvelous daily python url http://www.pythonware.com/daily Just beginning with Python? This page is a great place to start: http://wiki.python.org/moin/BeginnersGuide/Programmers The Python Papers aims to publish the efforts of Python enthusiasts: http://pythonpapers.org/ The Python Magazine is a technical monthly devoted to Python: http://pythonmagazine.com Readers have recommended the Planet site: http://planet.python.org comp.lang.python.announce announces new Python software. Be sure to scan this newsgroup weekly. http://groups.google.com/group/comp.lang.python.announce/topics Python411 indexes podcasts ... to help people learn Python ... Updates appear more-than-weekly: http://www.awaretek.com/python/index.html The Python Package Index catalogues packages. http://www.python.org/pypi/ Much of Python's real work takes place on Special-Interest Group mailing lists http://www.python.org/sigs/ Python Success Stories--from air-traffic control to on-line match-making--can inspire you or decision-makers to whom you're subject with a vision of what the language makes practical. http://www.pythonology.com/success The Python Software Foundation (PSF) has replaced the Python Consortium as an independent nexus of activity. It has official responsibility for Python's development and maintenance. http://www.python.org/psf/ Among the ways you can support PSF is with a donation. http://www.python.org/psf/donations/ The Summary of Python Tracker Issues is an automatically generated report summarizing new bugs, closed ones, and patch submissions.
probability sequencing language 1.04 has been released
probability sequencing language is a text based piano roll type programming language for csound. some may refer to it as a pre processor for csound. For version 1.04 a bug has been fixed alowing floating point numbers for the step number macros are now available loaded from external files. frequencies can now have drift where they change on every pass. the latest files are always available here http://dexrowem.blogspot.com/search?q=probility+sequencing+language -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
Open Technology Group, Inc. announces Advanced Python Training
Morrisville, NC (PRWEB) November 3, 2009 -- Open Technology Group, Inc. announces Advanced Python Training. The Open Technology Group (OTG), a leader in the development and delivery of training solutions centered about Open Source technologies, released the latest in its set of Open Source Python training courses - Advanced Python Programming (http://www.otg-nc.com/advanced-python-training). Designed for programmers looking to leverage advanced features of Python, or develop fast, efficient, and scalable software with Python, this Python course covers a wide range of advanced python related topics, including: object-oriented python programming; exception handling; python generators and decorators; regular expressions; networking with sockets; multi-threading, multi-processing, and coordination of operations between processes; signal handling; networking with Twisted; XML processing; and leveraging the Python unittest module. The Advanced Python Programming course is a mix of lecture, demonstration, and hands-on exercises. We've taken some of the most popular advanced components of Python and integrated them into this course with hands-on examples and exercises, said Chander Ganesan, President. The Advanced Python Programming course is available for immediate delivery, worldwide. The new class is available for both public enrollment and customized, affordable, on-site delivery to small groups (3 or more students) worldwide. ABOUT OPEN TECHNOLOGY GROUP, INC. Founded in 2004 and headquartered in Morrisville, NC, the Open Technology Group, Inc. (OTG) has established itself as the leading provider of training solutions centered about Open Source software and solutions. With its comprehensive library of in-house developed intellectual property, OTG is able to deliver comprehensive, customized, and structured training covering a wide range of software solutions. The Open Technology Group offers affordable customized on-site technology training worldwide, as well as public-enrollment courses delivered in over 10 locations, nationwide. For more information, and a complete course catalog, visit us online at http://www.otg-nc.com, or contact us at 877-258-8987. -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
Re: list comprehension problem
Paul Rudin paul.nos...@rudin.co.uk writes: Falcolas garri...@gmail.com writes: [s.strip() for s in hosts if s.strip()] There's something in me that rebels against seeing the same call twice. Agreed. I'd probably use: lines = [foo,, bar , , baz] [s for s in (s.strip() for s in lines) if s] ['foo', 'bar', 'baz'] -- \ “[I]t is impossible for anyone to begin to learn that which he | `\thinks he already knows.” —Epictetus, _Discourses_ | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: Command parsing... best module to use?
Thanks for the replies. Pyparsing looks just like what I need. -- http://mail.python.org/mailman/listinfo/python-list
Re: self.__dict__ tricks
a...@pythoncraft.com (Aahz) writes: There are no stupid questions, only stupid people. The earliest source I know for that aphorism is the fictional teacher Mister Garrisson, from South Park. Can anyone source it earlier? -- \“Read not to contradict and confute, nor to believe and take | `\ for granted … but to weigh and consider.” —Francis Bacon | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: substituting list comprehensions for map()
Yes, just about any ‘map()’ operation has a corresponding list comprehension. (Does anyone know of a counter-example, a ‘map()’ operation that doesn't have a correspondingly simple list comprehension?) Try turning this into a list comprehension: vectorsum = lambda *args: map(sum, zip(*args)) vectorsum([1,2], [3,4], [5,6]) -[9, 12] vectorsum([1,2], [3,4], [5,6], [7,8]) -[16, 20] Peace, aht -- http://mail.python.org/mailman/listinfo/python-list
Re: Sqlite3. Substitution of names in query.
In message mailman.2504.1257216390.2807.python-l...@python.org, Carsten Haese wrote: With all due respect, but if your experience is exclusive to MySQL/MySQLdb, your experience means very little for database programming practices in general. I wonder about the veracity of your claims, because: And here are the corresponding results on my laptop: $ python -mtimeit -s from querytest import Tester; t=Tester() 't.with_params()' 1 loops, best of 3: 20.9 usec per loop $ python -mtimeit -s from querytest import Tester; t=Tester() 't.without_params()' 1 loops, best of 3: 36.2 usec per loop Didn't you say previously that there should be a seven orders of magnitude difference? What happened to that claim? -- http://mail.python.org/mailman/listinfo/python-list
Re: Docs Typo
Lawrence D'Oliveiro l...@geek-central.gen.new_zealand writes: http://docs.python.org/library/turtle.html -- “ScrolledCavas” should be “ScrolledCanvas”. Thanks for finding and describing a fault with the Python documentation. This is not the right place for reporting it, though: this is the Python user forum, not an appropriate place for reporting faults. If you would like the issue to be addressed, please report it to the Python bug tracking system URL:http://bugs.python.org/. -- \“Program testing can be a very effective way to show the | `\presence of bugs, but is hopelessly inadequate for showing | _o__) their absence.” —Edsger W. Dijkstra | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Cast into custom type
Hi, I created a plugin mechanism for my application orientating at the mechanism described by Martin Alchy in http://martyalchin.com/2008/jan/10/simple-plugin-framework/ Now I'd like to call methods like `initialize(parent)' when the user chooses to use a plugin. As described in the blog mentioned above, I only have access to the general type called `PluginMount' (holding all the actual plugin instances). I tried to define abstract methods in PluginMount type raising a `NotImplementedError' but it seems, there is no late binding (similar to Java), so the right method would be called. Only the message TypeError: unbound method initialize() must be called with GeoCache instance as first argument (got PluginMount instance instead) `GeoCache' would be the plugin type. What is strange, is the fact, that when asking what instances are hold by PluginMount [class 'geocacheplugin.GeoCache'] is listed. So it seems, that no late binding is applied when calling the `initialize(self, parent)' method. I'm quite new using Python, so this might be a quite basic question caused by some misunderstandings in general. Feel free to point me to appropriate site to solve my problem. Thanks in advance. Henning -- http://mail.python.org/mailman/listinfo/python-list
Re: Cast into custom type
Henning Bredel schrieb: Hi, I created a plugin mechanism for my application orientating at the mechanism described by Martin Alchy in http://martyalchin.com/2008/jan/10/simple-plugin-framework/ Now I'd like to call methods like `initialize(parent)' when the user chooses to use a plugin. As described in the blog mentioned above, I only have access to the general type called `PluginMount' (holding all the actual plugin instances). I tried to define abstract methods in PluginMount type raising a `NotImplementedError' but it seems, there is no late binding (similar to Java), so the right method would be called. Only the message TypeError: unbound method initialize() must be called with GeoCache instance as first argument (got PluginMount instance instead) `GeoCache' would be the plugin type. What is strange, is the fact, that when asking what instances are hold by PluginMount [class 'geocacheplugin.GeoCache'] is listed. So it seems, that no late binding is applied when calling the `initialize(self, parent)' method. I'm quite new using Python, so this might be a quite basic question caused by some misunderstandings in general. Feel free to point me to appropriate site to solve my problem. It seems that GeoCache is not a subclass of PluginMount. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Cast into custom type
En Tue, 03 Nov 2009 06:41:37 -0300, Henning Bredel henning.bre...@gmx.de escribió: I created a plugin mechanism for my application orientating at the mechanism described by Martin Alchy in http://martyalchin.com/2008/jan/10/simple-plugin-framework/ Now I'd like to call methods like `initialize(parent)' when the user chooses to use a plugin. As described in the blog mentioned above, I only have access to the general type called `PluginMount' (holding all the actual plugin instances). According to the article, PluginMount holds a list of all plugin *classes* defined, not instances. I tried to define abstract methods in PluginMount type raising a `NotImplementedError' but it seems, there is no late binding (similar to Java), so the right method would be called. Only the message TypeError: unbound method initialize() must be called with GeoCache instance as first argument (got PluginMount instance instead) Python uses late binding, even more than Java. A reference like obj.foo(...) searches for foo along obj's attributes at runtime. Please post some code showing your issue, and don't forget to tell us what is your expected result, and what you actually get. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Pyfora, a place for python
On Nov 1, 8:06 am, Saketh saketh.bhamidip...@gmail.com wrote: Hi everyone, I am proud to announce the release of Pyfora (http://pyfora.org), an online community of Python enthusiasts to supplement comp.lang.python and #python. While the site is small right now, please feel free to register and post any questions or tips you may have. I'll feel free to not even bookmark it. I'm sorry, but it is just a bad idea. Your forum cannot (and should not) compete either with Python's official newsgroup, IRC channel and mailing list or with popular, well- made and well-frequented general programming sites like stackoverflow.com. It would be the Internet equivalent of looking for a poker tournament in a desert valley instead of driving half an hour less and going to Las Vegas: there are no incentives to choose your forum, except perhaps for isolationists who value being a big fish in a small pond over being part of a community. If you want to claim a small Python-related corner of the web, you should write a blog: if it is any good, and probably even if it isn't, it would be linked and read by someone and it would add to collective knowledge instead of fragmenting it. Regards, Lorenzo Gatti -- http://mail.python.org/mailman/listinfo/python-list
Re: Cast into custom type
On Tue, 03 Nov 2009 09:41:37 +, Henning Bredel wrote: Hi, I created a plugin mechanism for my application orientating at the mechanism described by Martin Alchy in http://martyalchin.com/2008/jan/10/simple-plugin-framework/ Regarding your subject line, Python doesn't have casts. A very small number of numeric types are automatically coerced as needed, for everything else you need an explicit conversion between objects of one type to different objects of another type. Now I'd like to call methods like `initialize(parent)' when the user chooses to use a plugin. As described in the blog mentioned above, I only have access to the general type called `PluginMount' (holding all the actual plugin instances). I tried to define abstract methods in PluginMount type raising a `NotImplementedError' but it seems, there is no late binding (similar to Java), so the right method would be called. You need to give some actual examples of what you are trying to do, and what you are expecting to happen. How is initialized() being called? Only the message TypeError: unbound method initialize() must be called with GeoCache instance as first argument (got PluginMount instance instead) Sounds like you are calling initialize on the class instead of on an instance. I'm *guessing* that you are doing something like this: plugin_manager = PluginMount() # ... # create plugins, which are registered in the plugin_manager # ... # Now initialize them: for cls in plugin_manager.plugins: cls.initialize(plugin_Manager) If my guess is correct, you can fix this two ways: (1) Change the for-loop to: for cls in plugin_manager.plugins: cls().initialize(plugin_Manager) although it isn't clear to me what you should do with the plugin instances after you've created them. (2) Change the initialize method to a classmethod: @classmethod def initialize(cls, parent): pass `GeoCache' would be the plugin type. What is strange, is the fact, that when asking what instances are hold by PluginMount [class 'geocacheplugin.GeoCache'] is listed. So it seems, that no late binding is applied when calling the `initialize(self, parent)' method. What do you mean by late binding, and what makes you think it applies (or should apply) to calling the initialize method? I'm quite new using Python, so this might be a quite basic question caused by some misunderstandings in general. Feel free to point me to appropriate site to solve my problem. We have to understand your problem first. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: PyGDChart2 module
On Oct 28, 4:52 pm, eb303 eric.brunel.pragma...@gmail.com wrote: Hi all, I was looking for a simple chart drawing Python module and as a user of the gd library and its Python interface, I was interested in the Python interface to the gdchart library (http://www.fred.net/brv/ chart/). Unfortunately, this module seems to have disappeared: its former URL (http://www.nullcube.com/software/pygdchart2.html) gives a 404 and a Google search did not return any other source. Does anyone know where I can find a copy of this module's source code? Thanks. Replying to myself: finally found the source package at http://ftp.de.debian.org/debian/pool/main/p/pygdchart2/pygdchart2_0.beta1.orig.tar.gz Seems to work quite well. -- http://mail.python.org/mailman/listinfo/python-list
Re: Pyfora, a place for python
Kee Nethery wrote: I just noticed the tag line a place for Python. Looked it up online (http://pyfora.org/) and it will be interesting to see if it can fill the void that I experience (no centralized place to post and view user submitted sample code) in the existing Python community. There already is a well-known site for exchanging code snippets: The ActiveState Cookbook for Python http://code.activestate.com/recipes/langs/python/ As for user community fragmentation, I would guess that someone would be less likely to create such a site if the user community needs were being met by the official sites. There is a place for the existing old school interaction forums (the IRC channel, the Usenet groups and mailing lists), but there is also a place for archived user submitted comments. My personal preference would be a link in each sub-paragraph in the official documentation to a wiki page devoted to that specific aspect of the Python language. A place were users could augment the documentation by providing sample code and by expanding out the documentation for those of us who don't live and breath Python in our sleep. Real Python coders would not click on the user wiki links and all of us newbies could communicate with each other. But until a place like that exists, perhaps Pyfora will get us part way there. I'm sure something like that could be added to the official documentation. Please file a feature request for on the Python tracker. We could have a dedicated place on the python.org wiki to host such snippets and then use sub-pages for the various topics. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ...http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ...http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- http://mail.python.org/mailman/listinfo/python-list
Re: self.__dict__ tricks
2009/11/1 Steven D'Aprano st...@remove-this-cybersource.com.au: The only stupid question is the one you are afraid to ask. I was once asked, and I quote exactly, are there any fish in the Atlantic sea? That's pretty stupid. ;-) -- Cheers, Simon B. -- http://mail.python.org/mailman/listinfo/python-list
Re: convert pyc (python 2.4) to py
There is an online service at http://www.depython.com converting pyc files to py. You can give it a try. It does not have file size limit. On Wed, Oct 21, 2009 at 8:58 PM, Chris Rebert c...@rebertia.com wrote: On Wed, Oct 21, 2009 at 11:35 AM, Peng Yu pengyu...@gmail.com wrote: On Tue, Oct 20, 2009 at 4:42 PM, Diez B. Roggisch de...@nospam.web.de wrote: Peng Yu schrieb: I have a .pyc file generated by python 2.4. My current python is of version 2.6. I'm wondering how to generate the corresponding .py file from it. http://www.crazy-compilers.com/decompyle/ Is there any free one? There's an older version of the software at: http://sourceforge.net/projects/decompyle/ but it's not maintained like the service (just see the last-modified date on it) and you'll have to figure out how to use it by yourself. Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list -- Furkan Kuru -- http://mail.python.org/mailman/listinfo/python-list
Re: About one class/function per module
Peng Yu wrote: On Mon, Nov 2, 2009 at 9:39 PM, alex23 wuwe...@gmail.com wrote: Peng Yu pengyu...@gmail.com wrote: I don't think that this is a problem that can not be overcome. A simple solution might be to associate a unique identifier to each file, so that even the filename has been changed, the new version and the old version can still be identified as actually the same file. Or, again, you could work _with_ the tools you're using in the way they're meant to be used, rather than re-inventing the whole process of version control yourself. I'm not trying to reinvent a new version control. But due to this drawback, I avoid use a version control system. Rather, I compressed my source code in a tar file whenever necessary. But if a version control system has this capability, I'd love to use it. And I don't think that no version control system support this is because of any technical difficult but rather because of practical issue (maybe it takes a lot efforts to add this feature to an existing version control system?). There are those people who realize if *everything* they encounter needs adjustment to fit their needs, their needs need adjustment. Others fight an uphill battle bicker about things not being as they want them. Don't get me wrong - innovation often comes from scratching ones personal itch. But you seem to be suffering from a rather bad case of neurodermatitis. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: About one class/function per module
Diez B. Roggisch de...@nospam.web.de writes: Don't get me wrong - innovation often comes from scratching ones personal itch. But you seem to be suffering from a rather bad case of neurodermatitis. +1 QOTW -- \ “For my birthday I got a humidifier and a de-humidifier. I put | `\ them in the same room and let them fight it out.” —Steven Wright | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: Cast into custom type
Diez, Gabriel, Steven,
thanks for your answers. I'll mainly give response in this posting, so
I hope not repeating myself.
On Tue, 03 Nov 2009 10:18:29 +, Steven D'Aprano wrote:
On Tue, 03 Nov 2009 09:41:37 +, Henning Bredel wrote:
Now I'd like to call methods like `initialize(parent)' when the user
chooses to use a plugin. As described in the blog mentioned above, I
only have access to the general type called `PluginMount' (holding all
the actual plugin instances).
I tried to define abstract methods in PluginMount type raising a
`NotImplementedError' but it seems, there is no late binding (similar
to Java), so the right method would be called.
You need to give some actual examples of what you are trying to do, and
what you are expecting to happen. How is initialized() being called?
Example: Assume a framework which offers common functionality for a plugin
or a module a user can choose at the beginning. The framework does not
know the concrete type of the plugin so it is possible to extend it by
implementing a well known interface or abstract class.
The framework reads the plugin directory, loads each module and creates
buttons for each plugin with a callback method for initializing. To use
common functionality of the framework, initialization method takes it as
the parent parameter.
I think this listing makes the most sense to you:
# initialize all plugins
self._plugin_modules = _load_plugins() # imp loading here
LOGGER.debug(ActionProvider.plugins) # print what was loaded
for plugin in ActionProvider.plugins: # create button for each
app_button = gtk.Button(plugin.title)
LOGGER.debug('Title of plugin: %s' % plugin.title)
app_button.connect(clicked,
plugin.initialize(plugin, self),
None)
self.set_canvas(app_button)
app_button.show()
TypeError: unbound method initialize() must be called with GeoCache
instance as first argument (got PluginMount instance instead)
Sounds like you are calling initialize on the class instead of on an
instance. I'm *guessing* that you are doing something like this:
Oh, I didn't expext PluginMount to hold only classes :/.
When calling `LOGGER.debug('Title of plugin: %s' % plugin.title)' the
global (not class attribute) `title' attribute is printed out though.
Probably some misinterpretation, too ..?!
(1) Change the for-loop to:
for cls in plugin_manager.plugins:
cls().initialize(plugin_Manager)
Good guess .. but calling it in that way another error says
app_button.connect(clicked, plugin().initialize(self), None)
TypeError: __init__() takes exactly 2 arguments (1 given)
But also
app_button.connect(clicked, plugin().initialize(plugin, self), None)
TypeError: __init__() takes exactly 2 arguments (1 given)
That is strange, because neither initialize() nor __init__ of the
plugin is called .. only a logging statement shall print a msg.
I hope it got a bit clearer what I am intended to do.
Thanks for your help.
Henning
--
http://mail.python.org/mailman/listinfo/python-list
import from a string
Hi,
Having a file called funcs.py, I would like to read it into a string,
and then import from that string.
That is instead of importing from the fie system, I wonder if it's
possible to eval the text in the string and treat it as a module.
For example
with file('funcs.py') as f: txt = r.read()
string_import(txt, 'funcs') # is string_import possible?
to have now a module called funcs with the functions defined in
funcs.py.
Thanks
--
http://mail.python.org/mailman/listinfo/python-list
Re: Aaaargh! global name 'eggz' is not defined
On Oct 30, 8:53 am, Bruno Desthuilliers bruno. 42.desthuilli...@websiteburo.invalid wrote: Robert Kern a écrit : On 2009-10-29 16:52 PM, Aahz wrote: (snip) Coincidentally, I tried PyFlakes yesterday and was unimpressed with the way it doesn't work with import *. I consider import * the first error to be fixed, so it doesn't bother me much. :-) +1 QOTW Bruno, do you actually get to decide the QOTW? Because everytime you ` +1 QOTW` it gets to be the QOTW. Ed BTW I was the grateful recipient of your vote the other week. -- http://mail.python.org/mailman/listinfo/python-list
Help resolve a syntax error on 'as' keyword (python 2.5)
Hi, all. All I'm trying to do is to print the error message using the following code (copying/pasting from IDLE). def div(a,b): print a/b try: div(5,0) except Exception as msg: print msg but IDLE says (while highlighting the 'as' keyword) except Exception as msg: SyntaxError: invalid syntax I've searched the internet and I'm not sure what can cause this. Any help is highly appreciated. I'm using Python 2.5 on Windows XP. -- http://mail.python.org/mailman/listinfo/python-list
Python-URL! - weekly Python news and links (Nov 3)
QOTW: I consider import * the first error to be fixed ... - Robert Kern, author of PyFlakes, a potential replacement for Pylint and Pychecker, on his personal style http://groups.google.com/group/comp.lang.python/msg/5bf77b21b3b0caf2 Python 2.6.4 is out; it fixes some small but important bugs in previous 2.6.3 release: http://groups.google.com/group/comp.lang.python/t/44f4c166de5e6703/ PEP391: A new way to configure Python logging, using dictionaries: http://groups.google.com/group/comp.lang.python/t/3fc3138c22a50678/ Why do you use Python? http://groups.google.com/group/comp.lang.python/t/66ccb10d2da5b740/ Is there any value in forcing one class/function per module? (long thread): http://groups.google.com/group/comp.lang.python/t/1e0c1e2091539512/ A review of complex solutions to an almost inexistent problem shows constructive criticism in action: http://groups.google.com/group/comp.lang.python/t/d218212cabe9670b/ A user module may shadow a standard module of the same name - is it avoidable? http://groups.google.com/group/comp.lang.python/t/b31f74b6145c9d94/ copy.deepcopy() is not as deep as its name implies: http://groups.google.com/group/comp.lang.python/t/d827fd118189fe01/ A long thread about Web development: why to use templates, and why frameworks actually do help developers: http://groups.google.com/group/comp.lang.python/t/367025d4d9a2e15d/ Using a module as a place to store application global settings: http://groups.google.com/group/comp.lang.python/t/23e21edf1b232b32/ A simple list comprehension question leads to discuss mutability, identity, and Cousin Chuy's Super-Burritos: http://groups.google.com/group/comp.lang.python/t/17cfd91ece6ed54f/ Combining map, zip and filter into an equivalent list comprehension: http://groups.google.com/group/comp.lang.python/t/259976305282b0c0?q=map timeit: make sure you actually measure what you want, and not other code: http://groups.google.com/group/comp.lang.python/t/7ecae76e11f720ee/ Why do compiled C extensions on Windows use '.pyd' in their name instead of '.dll'? http://groups.google.com/group/comp.lang.python/t/c8d93871cc5f31dc/ Pyfora, a web forum about Python, was lauched recently. Will this fragment the community? http://groups.google.com/group/comp.lang.python/t/e6e0d99c995da697/ A guy's future book on programming Python doesn't fit standard practice (a long thread!): http://groups.google.com/group/comp.lang.python/t/6918784f36d147d2/ Everything Python-related you want is probably one or two clicks away in these pages: Python.org's Python Language Website is the traditional center of Pythonia http://www.python.org Notice especially the master FAQ http://www.python.org/doc/FAQ.html PythonWare complements the digest you're reading with the marvelous daily python url http://www.pythonware.com/daily Just beginning with Python? This page is a great place to start: http://wiki.python.org/moin/BeginnersGuide/Programmers The Python Papers aims to publish the efforts of Python enthusiasts: http://pythonpapers.org/ The Python Magazine is a technical monthly devoted to Python: http://pythonmagazine.com Readers have recommended the Planet site: http://planet.python.org comp.lang.python.announce announces new Python software. Be sure to scan this newsgroup weekly. http://groups.google.com/group/comp.lang.python.announce/topics Python411 indexes podcasts ... to help people learn Python ... Updates appear more-than-weekly: http://www.awaretek.com/python/index.html The Python Package Index catalogues packages. http://www.python.org/pypi/ Much of Python's real work takes place on Special-Interest Group mailing lists http://www.python.org/sigs/ Python Success Stories--from air-traffic control to on-line match-making--can inspire you or decision-makers to whom you're subject with a vision of what the language makes practical. http://www.pythonology.com/success The Python Software Foundation (PSF) has replaced the Python Consortium as an independent nexus of activity. It has official responsibility for Python's development and maintenance. http://www.python.org/psf/ Among the ways you can support PSF is with a donation. http://www.python.org/psf/donations/ The Summary of Python Tracker Issues is an automatically generated report summarizing new bugs, closed ones, and patch submissions.
Re: Pyfora, a place for python
On 11/3/09, Diez B. Roggisch de...@nospam.web.de wrote: Daniel Fetchinson schrieb: If you have any suggestions, let me know -- this is a community effort! Suggestion: Please don't make efforts to fragment the community. When a community grows and consequently its needs also grow, how do you differentiate natural growth from fragmenting the community? Same question in another way: let's suppose Tim Peters sent the exact email the OP sent with the exact same website. Would you have responded to him the same way? Most probably not - but then because Tim certainly would have discussed this move with peers from the community, if there is a need for this kind of forum or not. Being from germany, I can say that we *have* this fragmentation, and frankly: I don't like it. I prefer my communication via NNTP/ML, and not with those visually rather noisy and IMHO suboptimal forums. If you prefer NNTP/ML, I'd suggest you pay attention to these channels only. BTW, I prefer ML also and I'm very happy with c.l.p. However that doesn't mean that I need to be hostile to other forms of communication and it doesn't mean that I need to discourage people from setting up other channels of communication for those folks who prefer them. Since when is the mere suggestion that fragmentation will occur and if that's a desirable consequence is hostile? The OP is not bound to it, and I also don't see the tone used by the two immediate answerers being hostile. Paul might have been terse - but hostility looks different IMHO. I was referring to this comment by Ben: Suggestion: Please don't make efforts to fragment the community. This IMHO is hostile, because it presupposes that the mere goal of the OP is fragmenting the community, which is something negative, i.e. it contains negative prejudice. What I would have written in Ben's place: Have you considered the possibility that your website will further fragment the community? This wouldn't have been hostile, IMHO. The OP *might* come to the conclusion that further fragmenting the community isn't within his personal goals either. OTOH, he might also simply think that once his forum gained traction, he can switch on the google ads, and cash in. Which a forum announced by Tim Peters, run under python.org wouldn't I'd say. If new channels open up for others it will not make c.l.p any worse. It will, if they catch on. As some competent people will move away. Competent people will only move away if the website is great/fun/useful/etc. In which case we should welcome it, since something great/fun/useful/etc is a good thing. If it's not great/fun/useful/etc competent people will not move away, in which case c.l.p. will not be any worse as a result of launching the new website. Again, this is the case in the german python scene, and it plain sucks. We have a ML, a NG, and a forum. None of them is synchronized in any way. We wanted to do this for ML and NG - but the guy responsible for the ML can't be reached, or refuses to answer. Welcome to open source, the world of infinitely many forks, code variants, MLs, forums, NGs, websites, in other words, welcome to the bazaar! Cheers, Daniel If we had only one source, fragmentation wouldn't occur, and the competence would be bundled. That I personally prefer MLs and NGs doesn't mean that I wouldn't turn to the forum if it was *the* way to talk about Python. But as it stands, there are three kind of things, of which I'm already subsribed to two - and am annoyed of people posting questions in both of them. Now, I can't do anything about it in the sense that I can forbid it. But questioning the move to create a new form of exchange (especially something rather uninspired, in contrast to e.g. stackoverflow) I can. If enough people like c.l.p. it will continue to be a good channel, if too many too good people switch to an online forum, well, in that case c.l.p. will cease to be great, but it won't be because of artificial fragmentation by somebody but because the people started to prefer online forums (words like free market come to mind :)) Yes. Or all of them suck equally. Free market again. I'm not against it, but asking the OP if he really thinks the value of his forum outweighs the risk of making existing fora worse is a valid question. Free speech, one other nice free thing out there. I generally not register on any online forum and will most probably not register on pyfora either. But I know for a fact that many people prefer forums over ML and why shouldn't those people be happy with the communication platform they like and why shouldn't they be given a chance to join the python community if the only reason they stayed away was that they didn't like c.l.p. for one reason or another? E.g. it requires much more effort to get to know what new discussions arose, as well as following ongoing ones - because the interface lacks a comprehensive overview of that, and features
Re: Help resolve a syntax error on 'as' keyword (python 2.5)
Hi, except Exception as variable is a new python-3 syntax. You should use except Exception, variable syntax in 2.x series. Vladimir Ignatov On Tue, Nov 3, 2009 at 4:06 PM, Oltmans rolf.oltm...@gmail.com wrote: Hi, all. All I'm trying to do is to print the error message using the following code (copying/pasting from IDLE). def div(a,b): print a/b try: div(5,0) except Exception as msg: print msg but IDLE says (while highlighting the 'as' keyword) except Exception as msg: SyntaxError: invalid syntax I've searched the internet and I'm not sure what can cause this. Any help is highly appreciated. I'm using Python 2.5 on Windows XP. -- http://mail.python.org/mailman/listinfo/python-list
Re: Sqlite3. Substitution of names in query.
Lawrence D'Oliveiro wrote: In message mailman.2504.1257216390.2807.python-l...@python.org, Carsten Haese wrote: With all due respect, but if your experience is exclusive to MySQL/MySQLdb, your experience means very little for database programming practices in general. I wonder about the veracity of your claims, because: And here are the corresponding results on my laptop: $ python -mtimeit -s from querytest import Tester; t=Tester() 't.with_params()' 1 loops, best of 3: 20.9 usec per loop $ python -mtimeit -s from querytest import Tester; t=Tester() 't.without_params()' 1 loops, best of 3: 36.2 usec per loop Didn't you say previously that there should be a seven orders of magnitude difference? What happened to that claim? That claim was an exaggeration I resorted to after you distorted the concept of choosing the right tool for the job into premature optimization. It wasn't my initial claim. The seven orders (which is actually log-10 orders of however often the same query is executed with different values) is of course only the cost increase on parsing the query itself, which as you pointed out is drowned out by other fixed costs associated with performing database queries. However, you can't dispute the fact that using string interpolation *is* in general less efficient than parameter binding, and that was my initial claim. -- Carsten Haese http://informixdb.sourceforge.net -- http://mail.python.org/mailman/listinfo/python-list
Re: Help resolve a syntax error on 'as' keyword (python 2.5)
I don't have Python 25 on my computer, but since codepad.org is using Python 2.5.1, I did a quick test: # input try: raise Exception(Mrraa!) except Exception as msg: print msg # output t.py:3: Warning: 'as' will become a reserved keyword in Python 2.6 Line 3 except Exception as msg: ^ SyntaxError: invalid syntax # Well that's interesting. as isn't a keyword yet in Python 2.5. This works though, and I think it fits the specification in the documentation. # input try: raise Exception(Mrraa!) except Exception, msg: # Notice it's a comma print msg # output Mrraa! ## Hope that helps, Xav -- http://mail.python.org/mailman/listinfo/python-list
Python-URL! - weekly Python news and links (Nov 3)
QOTW: I consider import * the first error to be fixed ... - Robert Kern, author of PyFlakes, a potential replacement for Pylint and Pychecker, on his personal style http://groups.google.com/group/comp.lang.python/msg/5bf77b21b3b0caf2 Python 2.6.4 is out; it fixes some small but important bugs in previous 2.6.3 release: http://groups.google.com/group/comp.lang.python/t/44f4c166de5e6703/ PEP391: A new way to configure Python logging, using dictionaries: http://groups.google.com/group/comp.lang.python/t/3fc3138c22a50678/ Why do you use Python? http://groups.google.com/group/comp.lang.python/t/66ccb10d2da5b740/ Is there any value in forcing one class/function per module? (long thread): http://groups.google.com/group/comp.lang.python/t/1e0c1e2091539512/ A review of complex solutions to an almost inexistent problem shows constructive criticism in action: http://groups.google.com/group/comp.lang.python/t/d218212cabe9670b/ A user module may shadow a standard module of the same name - is it avoidable? http://groups.google.com/group/comp.lang.python/t/b31f74b6145c9d94/ copy.deepcopy() is not as deep as its name implies: http://groups.google.com/group/comp.lang.python/t/d827fd118189fe01/ A long thread about Web development: why to use templates, and why frameworks actually do help developers: http://groups.google.com/group/comp.lang.python/t/367025d4d9a2e15d/ Using a module as a place to store application global settings: http://groups.google.com/group/comp.lang.python/t/23e21edf1b232b32/ A simple list comprehension question leads to discuss mutability, identity, and Cousin Chuy's Super-Burritos: http://groups.google.com/group/comp.lang.python/t/17cfd91ece6ed54f/ Combining map, zip and filter into an equivalent list comprehension: http://groups.google.com/group/comp.lang.python/t/259976305282b0c0?q=map timeit: make sure you actually measure what you want, and not other code: http://groups.google.com/group/comp.lang.python/t/7ecae76e11f720ee/ Why do compiled C extensions on Windows use '.pyd' in their name instead of '.dll'? http://groups.google.com/group/comp.lang.python/t/c8d93871cc5f31dc/ Pyfora, a web forum about Python, was lauched recently. Will this fragment the community? http://groups.google.com/group/comp.lang.python/t/e6e0d99c995da697/ A guy's future book on programming Python doesn't fit standard practice (a long thread!): http://groups.google.com/group/comp.lang.python/t/6918784f36d147d2/ Everything Python-related you want is probably one or two clicks away in these pages: Python.org's Python Language Website is the traditional center of Pythonia http://www.python.org Notice especially the master FAQ http://www.python.org/doc/FAQ.html PythonWare complements the digest you're reading with the marvelous daily python url http://www.pythonware.com/daily Just beginning with Python? This page is a great place to start: http://wiki.python.org/moin/BeginnersGuide/Programmers The Python Papers aims to publish the efforts of Python enthusiasts: http://pythonpapers.org/ The Python Magazine is a technical monthly devoted to Python: http://pythonmagazine.com Readers have recommended the Planet site: http://planet.python.org comp.lang.python.announce announces new Python software. Be sure to scan this newsgroup weekly. http://groups.google.com/group/comp.lang.python.announce/topics Python411 indexes podcasts ... to help people learn Python ... Updates appear more-than-weekly: http://www.awaretek.com/python/index.html The Python Package Index catalogues packages. http://www.python.org/pypi/ Much of Python's real work takes place on Special-Interest Group mailing lists http://www.python.org/sigs/ Python Success Stories--from air-traffic control to on-line match-making--can inspire you or decision-makers to whom you're subject with a vision of what the language makes practical. http://www.pythonology.com/success The Python Software Foundation (PSF) has replaced the Python Consortium as an independent nexus of activity. It has official responsibility for Python's development and maintenance. http://www.python.org/psf/ Among the ways you can support PSF is with a donation. http://www.python.org/psf/donations/ The Summary of Python Tracker Issues is an automatically generated report summarizing new bugs, closed ones, and patch submissions. http://search.gmane.org/?author=status%40bugs.python.orggroup=gmane.comp.python.develsort=date Although unmaintained since 2002, the Cetus
Re: Help resolve a syntax error on 'as' keyword (python 2.5)
Vladimir Ignatov wrote: Hi, except Exception as variable is a new python-3 syntax. You should use except Exception, variable syntax in 2.x series. Not entirely true. This feature has been backported to python2.6 as well. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Help resolve a syntax error on 'as' keyword (python 2.5)
Oltmans rolf.oltm...@gmail.com writes: try: div(5,0) except Exception as msg: print msg The name ‘msg’ here is misleading. The except syntax does *not* bind the target to a message object, it binds the target to an exception object. It would be clearer to write the above code as: try: div(5, 0) except Exception as exc: print(exc) since the target ‘exc’ names an exception object, not a message. (The ‘print’ function will *create* a string object from the exception object, use the string, then discard it.) but IDLE says (while highlighting the 'as' keyword) except Exception as msg: SyntaxError: invalid syntax I've searched the internet and I'm not sure what can cause this. When you get a syntax error, you should check the syntax documentation for the version of Python you're using. Any help is highly appreciated. I'm using Python 2.5 on Windows XP. The syntax above is for Python 3 only URL:http://docs.python.org/3.1/reference/compound_stmts.html#try. In Python 2.5.4, the ‘try … except’ syntax was different URL:http://www.python.org/doc/2.5.4/ref/try.html, and ‘print’ was not implemented as a function, but instead as a keyword URL:http://www.python.org/doc/2.5.4/ref/print.html. Use this form: try: div(5, 0) except Exception, exc: print exc -- \ “When I get new information, I change my position. What, sir, | `\ do you do with new information?” —John Maynard Keynes | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Handling large datastore search
In case I have a huge datastore (1 entries, each entry has like 6 properties), what is the best way to handle the search within such a huge datastore, and what if I want to make a generic search, for example you write a word and i use it to search within all properties I have for all entries? Is the conversion to XML a good solution, or it is not? sorry for being new to web development, and python. Thanks in advance. -- Regards, Ahmed Barakat http://ahmedbarakat83.blogspot.com/ Even a small step counts -- http://mail.python.org/mailman/listinfo/python-list
Re: Pyfora, a place for python
Daniel Fetchinson fetchin...@googlemail.com writes: I was referring to this comment by Ben: Suggestion: Please don't make efforts to fragment the community. This IMHO is hostile, because it presupposes that the mere goal of the OP is fragmenting the community It presupposes nothing of any goal. It describes a predictable result of the OP's efforts, and requests those efforts to cease. So I deny the characterisation of that request as hostile. -- \ “Injustice is relatively easy to bear; what stings is justice.” | `\ —Henry L. Mencken | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: Handling large datastore search
Ahmed Barakat wrote: In case I have a huge datastore (1 entries, each entry has like 6 properties) Can you show some sample entries? That way we can get an idea how your datastore looks like. By the way, 1 doesn't sound that much. At work I create python programs which do data processing and ofter have this much entries in a dictionary, often more. Is the conversion to XML a good solution, or it is not? XML is meant to be an exchange format; it is not designed for storage or fast retrieval. Greetings, -- The ability of the OSS process to collect and harness the collective IQ of thousands of individuals across the Internet is simply amazing. - Vinod Valloppillil http://www.catb.org/~esr/halloween/halloween4.html -- http://mail.python.org/mailman/listinfo/python-list
Re: list comprehension problem
Terry Reedy wrote: What immutability has to do with identity is that 'two' immutable objects with the same value *may* actually be the same object, *depending on the particular version of a particular implementation*. t1 = (1,2,3) # an immutable object t2 = (1,2,3) # another immutable object Whether or not this is 'another' object or the same object is irrelevant for all purposes except identity checking. It is completely up to the interpreter. t1 is t2 False In this case, but it could have been True. t1 == t2 True A more telling example: t1 = (1, 2) + (3,) # an immutable object t2 = (1,) + (2, 3) # another immutable object t1 is t2 False t1 is t2 False Here you make obvious that (assuming an optimizer that is not far more aggressive than Python is used to), in order to make equal immutable values identical, you'd have to end each operation producing an immutable result with a search of all appropriately typed values for one that was equal. --Scott David Daniels scott.dani...@acm.org -- http://mail.python.org/mailman/listinfo/python-list
Re: import bug
On Nov 3, 1:52 am, Carl Banks pavlovevide...@gmail.com wrote: On Oct 31, 7:12 am, kj no.em...@please.post wrote: I'm running into an ugly bug, which, IMHO, is really a bug in the design of Python's module import scheme. Consider the following directory structure: ham |-- __init__.py |-- re.py `-- spam.py ...with the following very simple files: % head ham/*.py == ham/__init__.py == == ham/re.py == == ham/spam.py == import inspect I.e. only ham/spam.py is not empty, and it contains the single line import inspect. If I now run the innocent-looking ham/spam.py, I get the following error: % python26 ham/spam.py Traceback (most recent call last): File ham/spam.py, line 1, in module import inspect File /usr/local/python-2.6.1/lib/python2.6/inspect.py, line 35, in module import string File /usr/local/python-2.6.1/lib/python2.6/string.py, line 122, in module class Template: File /usr/local/python-2.6.1/lib/python2.6/string.py, line 116, in __init__ 'delim' : _re.escape(cls.delimiter), AttributeError: 'module' object has no attribute 'escape' or, similarly, % python3 ham/spam.py Traceback (most recent call last): File ham/spam.py, line 1, in module import inspect File /usr/local/python-3.0/lib/python3.0/inspect.py, line 36, in module import string File /usr/local/python-3.0/lib/python3.0/string.py, line 104, in module class Template(metaclass=_TemplateMetaclass): File /usr/local/python-3.0/lib/python3.0/string.py, line 98, in __init__ 'delim' : _re.escape(cls.delimiter), AttributeError: 'module' object has no attribute 'escape' My sin appears to be having the (empty) file ham/re.py. So Python is confusing it with the re module of the standard library, and using it when the inspect module tries to import re. Python is documented as behaving this way, so this is not a bug. It is arguably poor design. However, Guido van Rossum already ruled against using a single package for the standard library, and its not likely that special case code to detect accidental name-clashes with the standard library is going to be added, since there are legitimate reasons to override the standard library. So for better or worse, you'll just have to deal with it. Carl Banks Just have to add that you're not just affected by the standard library. If you have a module named myapp.django, and someone writes a cool library called django that you want to use, you can't use it unless you rename your local django module. file myapp/django.py: from django.utils.functional import curry ImportError: No module named utils.functional At least that's what I get, maybe there is some workaround, some way to say this is an absolute path? -- http://mail.python.org/mailman/listinfo/python-list
Re: Why do you use python?
On 1 nov, 08:54, Dennis Lee Bieber wlfr...@ix.netcom.com wrote: On Sat, 31 Oct 2009 06:54:27 -0700 (PDT), Jaime Buelta jaime.bue...@gmail.com declaimed the following in gmane.comp.python.general: shouldn't be heard. Talks a guy that programmed a GUI on Motif using C (plain old C) in 2003 and takes almost forever (one year and a half), Lucky you... I emulated a Ramtek 9300 (think that was the model) graphics engine using GKS (for display lists, and ability to turn layers on/off without regenerating all the data) on top of plain DECWindows/Xt library, with no layout utility. Around 1990 (I date it by the fact that, on return from the 7 week two site deployment of the application, I decided my old cameras had gotten too burdensome, and bought a Canon EOS 10s, 35-105 100-300 lenses, and a photo vest that I could wear onto the flights) Emulation was needed as the data generation program had to have minimal changes -- we replaced the Ramtek library with a package that formatted the Ramtek instructions as text strings, sent them via VAX/VMS mailboxes to the emulation program... Oh, and the main data generation program really was a set of some 50 programs that were invoked in random order, each drawing certain data elements onto a single window -- so there had to be a common graphics application to maintain the window... -- Wulfraed Dennis Lee Bieber KD6MOG wlfr...@ix.netcom.com HTTP://wlfraed.home.netcom.com/ Hahahaha, I souposse that I must consider myself EXTREMELY lucky... ;-) Anyway, each tool has its time, and we should try to use more-or-less adequate and available tools of our time... -- http://mail.python.org/mailman/listinfo/python-list
Re: Web development with Python 3.1
With respect to to original question regarding web frameworks + database and Python 3, all the following have been available for Python 3 since the day Python 3.0 was released: QP, a Web Framework http://pypi.python.org/pypi/qp/ Durus, a Python Object Database (the default in qp, for user sessions, etc) http://pypi.python.org/pypi/Durus/ Evoque, state-of-the-art templating engine http://pypi.python.org/pypi/evoque/ (this one is available for py3.0 since a little later, 21-jan-2009) All the above also runs on python 2.4 (thru to python 3) For the record, you may see the list of all pypi packages availabe for Python 3 at: http://pypi.python.org/pypi?:action=browseshow=allc=533 m. -- http://mail.python.org/mailman/listinfo/python-list
Re: Pyfora, a place for python
I was referring to this comment by Ben: Suggestion: Please don't make efforts to fragment the community. This IMHO is hostile, because it presupposes that the mere goal of the OP is fragmenting the community It presupposes nothing of any goal. It describes a predictable result of the OP's efforts, and requests those efforts to cease. So I deny the characterisation of that request as hostile. Probably this thread is going by far too far :) but let's see this again, If A says to B please don't do X then A assumes that B does X. Otherwise the request of A doesn't make sense, since it doesn't make sense to ask somebody not to do something that he/she is not doing. Agreed? If no, please explain why you don't agree. If yes, then I guess we will also agree that if A says to B please don't make efforts to do X then request of A only makes sense if B makes an effort to do X. Agreed? If no, please explain why. If yes, great, let's continue! If A says to B please don't make efforts to fragment the community then this request from A only makes sense if B makes an effort to fragment the community. Agreed? If no, why not? If yes, we are almost there! In our example the request of A only makes sense if B is making an effort to fragment the community, in other words, assuming that A tries to make a meaningful request, A is assuming that B is making an effort to fragment the community. Agreed? If not, why not? If yes, with the substitution A = Ben and B = OP we get in order for Ben's request to make sense, Ben has to assume that the OP is making an effort to fragment the community. This assumption on the part of Ben, I think, is hostile, since it assumes that the OP is making an effort to do something not nice. Whether the OP is indeed doing something not nice, is irrelevant. If the OP does do something not nice, the hostility is warranted. If the OP is not doing anything not nice, the hostility is unwarranted. But the fact that Ben was hostile is a fact :) Cheers, Daniel -- Psss, psss, put it down! - http://www.cafepress.com/putitdown -- http://mail.python.org/mailman/listinfo/python-list
comparing alternatives to py2exe
Hi, Recently I put together this incomplete comparison chart in an attempt to choose between the different alternatives to py2exe: http://spreadsheets.google.com/pub?key=tZ42hjaRunvkObFq0bKxVdgoutput=html Columns represent methods of deploying to end-users such that they don't have to worry about installing Python, packages or other dependencies. 'Bundle' represents manually bundling an interpreter with your app. 'Bootstrap' represents a fanciful idea of mine to include an installer that downloads and installs an interpreter if necessary. This sounds fiddly, since it would have to install side-by- side with any existing interpreters of the wrong version, without breaking anything. Has anyone done this? The remaining columns represent the projects out there I could find which would do the bundling for me. Are there major things I'm missing or misunderstanding? Perhaps folks on the list would care to rate (+1/-1) rows that they find important or unimportant, or suggest additional rows that would be important to them. Maybe an updated and complete version of this table would help people agree on what's important, and help the various projects to improve faster. Best regards, Jonathan -- http://mail.python.org/mailman/listinfo/python-list
pythonw.exe under Windows-7 (Won't run for one admin user)
I have a perplexing issue, I have four users set up on a W7 computer. The program runs fine for all users except the admin user who needs it for school assignments. It's not a firewall issue as I've added localhost for pythomw.exe as allow. I've done some data dumps using sysinternals process monitor and the working users create a 7.8mb dump file and the file for the broken user is only 1.04mb. I can send the zipped data dumps (XML) 384kb if someone could have a look. Python 2.6 Thanks SD -- http://mail.python.org/mailman/listinfo/python-list
Re: Pyfora, a place for python
Since when is the mere suggestion that fragmentation will occur and if that's a desirable consequence is hostile? The OP is not bound to it, and I also don't see the tone used by the two immediate answerers being hostile. Paul might have been terse - but hostility looks different IMHO. I was referring to this comment by Ben: Suggestion: Please don't make efforts to fragment the community. This IMHO is hostile, because it presupposes that the mere goal of the OP is fragmenting the community, which is something negative, i.e. it contains negative prejudice. What I would have written in Ben's place: Have you considered the possibility that your website will further fragment the community? This wouldn't have been hostile, IMHO. Well, this is *deep* into the realms of semantics and dialectics. To an extend that personal prejudice would change the perception of the sentence. If everything posted here (and elsewhere) had to be worded so carefully, we'd hardly discussing anything at all. Competent people will only move away if the website is great/fun/useful/etc. In which case we should welcome it, since something great/fun/useful/etc is a good thing. If it's not great/fun/useful/etc competent people will not move away, in which case c.l.p. will not be any worse as a result of launching the new website. There is not only the problem of people moving away - but also of them not even finding *this* place to discuss because they found pyfora first, and thus the danger of them getting not the good answers they are looking for. This sometimes already happens, if one of the google ad farms out there that tries to lure people onto their pages simply reproduces c.l.py content - and people believe it's a genuine forum - and wonder why they don't get answers there. Welcome to open source, the world of infinitely many forks, code variants, MLs, forums, NGs, websites, in other words, welcome to the bazaar! Oh please. If every dissent on the direction of an open-source project (or commercial one) would lead to forking, we'd end up with a lot of projects which none of them being competitive and mature. So can we scrap this straw-man of an argument? Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: comparing alternatives to py2exe
On Tue, Nov 3, 2009 at 10:58 AM, Jonathan Hartley tart...@tartley.com wrote: Hi, Recently I put together this incomplete comparison chart in an attempt to choose between the different alternatives to py2exe: http://spreadsheets.google.com/pub?key=tZ42hjaRunvkObFq0bKxVdgoutput=html Columns represent methods of deploying to end-users such that they don't have to worry about installing Python, packages or other dependencies. 'Bundle' represents manually bundling an interpreter with your app. 'Bootstrap' represents a fanciful idea of mine to include an installer that downloads and installs an interpreter if necessary. This sounds fiddly, since it would have to install side-by- side with any existing interpreters of the wrong version, without breaking anything. Has anyone done this? Maybe there is a way to use Portable Python for this, but I have no experience with it. The remaining columns represent the projects out there I could find which would do the bundling for me. Are there major things I'm missing or misunderstanding? Perhaps folks on the list would care to rate (+1/-1) rows that they find important or unimportant, or suggest additional rows that would be important to them. Maybe an updated and complete version of this table would help people agree on what's important, and help the various projects to improve faster. Best regards, Jonathan Good work. Recently I played with cx_freeze and compared it to py2exe, which I've been using for a while. Here are my findings: 1. I don't think cx_freeze supports single exe. I haven't even been able to get it to append the generated library.zip file to the executable using documented options. Other things like .pyd files always seem to be separate. At the same time, singe executables generated by py2exe do not always work. I have a program that works fine on Windows XP, Vista, and 7 if it is built under XP. However, if I build the exact same program under Windows 7, it no longer works on Vista or XP. I'm sure it has something to do with SxS or other dll issues. 2. For output directory structure, you are able to specify where to put the generated executable and all of its dependencies with both py2exe and cx_freeze. You cannot do things like put python26.dll in a separate directory from the executable. Not sure if that is what you are referring to. 3. py2exe does not support Python 3 (unfortunately). 4. Although cx_freeze does support optimization (-O), it's a bit broken in that the __debug__ variable is always set to True. In other words, the code is optimized and things like assert statements are not executed, but conditional statements that check __debug__ == True are. I know that py2exe does not have this problem, no experience with other tools. 5. py2exe is capable of generating smaller executables than cx_freeze because of the base executable size (18.5 KB vs 1.35 MB). This is offset by the fact that py2exe saves many more standard library components to library.zip by default. In a quick test I just ran, both generated a package of 4.03 MB, but I can remove at least a meg from py2exe's library.zip. Rather than distribution size, I think it makes more sense to show overhead above the required components (exclude minimal library.zip, python dll, and pyd files). 6. cx_freeze is as easy to use as py2exe after looking at the bundled examples. - Max -- http://mail.python.org/mailman/listinfo/python-list
Re: substituting list comprehensions for map()
On Tue, 03 Nov 2009 10:22:28 -0500, J Kenneth King wrote: However in this case the procedure by which we derive the value is not important or even interesting. It is much more succinct to think of the operation as a value and express it accordingly. There's no need to clutter the mind with extra name bindings and iteration keywords. They won't make our idea any more clear. dot_product = map(mul, vec1, vec2) vs dot_product = [a * b for a, b in zip(vec1, vec2)] It's very clear, at least to me, what a dot-product is in this case. Except it's not. The dot product of two vectors returns a scalar, not another vector: http://en.wikipedia.org/wiki/Dot_product So what you want is: dot_product = sum(map(mul, vec1, vec2)) Adding in the loop construct and name bindings doesn't enhance my understanding of what a dot-product is. I don't need to see the loop construct at all in this case. A dot product is simply the multiplication of each element in a vector sequence. What you need is to define a function dot-product, and not hijack the name for a local value. Then the function's implementation is irrelevant to you: it could use a list comp, or could use map, it could use a for- loop, a while loop, recursion, or black magic: scalar = dot_product(vec1, vec2) -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: import from a string
iu2 israelu at elbit.co.il writes:
Hi,
Having a file called funcs.py, I would like to read it into a string,
and then import from that string.
That is instead of importing from the fie system, I wonder if it's
possible to eval the text in the string and treat it as a module.
For example
with file('funcs.py') as f: txt = r.read()
string_import(txt, 'funcs') # is string_import possible?
to have now a module called funcs with the functions defined in
funcs.py.
You can do something like this:
import types
import sys
mymodule = types.ModuleType(mymodule, Optional Doc-String)
with file('funcs.py') as f:
txt = f.read()
exec txt in globals(), mymodule.__dict__
sys.modules['mymodule'] = mymodule
Note that you shouldn't exec untrusted code.
You might also look at the __import__ funciton, which can import by python path.
You might also look at the imp module.
Matt
--
http://mail.python.org/mailman/listinfo/python-list
ANN: python-dBase 0.86 Released!
Greetings! I am happy to announce the latest release of python-dBase (dbf for short)! At this point it supports dBase III and Visual FoxPro 6 dbf files. It's a bit quicker now since it's using array.array to hold the records and not strings, and the API has been standardized. It also now has much better, though still basic, documentation. It was initially written to ease transition away from vfp files, but we use it here everyday for processing both vfp and dBase files. Drawbacks: * it is not concurrent * it does not support vfp auto-increment nor null fields * entire table is read into memory, so large tables process slowly * non-initialized logical fields show up as False (? == False) Advantages: * entire table is read into memory, so small to medium files process quickly * memo fields (reading *and* writing) are supported * :memory: tables can be used to hold result sets from bigger SQL tables to ease data access * custom date, datetime, and time wrappers to support empty date fields * direct translation from dbf field to python data type To-Do: * add an option to not keep all records in memory for large tables * add codepage support * add more dbf formats (dBase IV, V, 7 -- any links to these layouts would be /greatly/ appreciated!) This release is available at PyPI -- just search for dbf! As always, success stories and bug reports desired. Happy Hacking! ~Ethan~ -- http://mail.python.org/mailman/listinfo/python-list
Re: Python-URL! - weekly Python news and links (Nov 3)
On 2009-11-03 07:29 AM, Cameron Laird wrote: QOTW: I consider import * the first error to be fixed ... - Robert Kern, author of PyFlakes, a potential replacement for Pylint and Pychecker, on his personal style http://groups.google.com/group/comp.lang.python/msg/5bf77b21b3b0caf2 I am not the author of PyFlakes. That distinction belongs to Phil Frost and others at Divmod. -- Robert Kern I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth. -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
Re: Pyfora, a place for python
Daniel Fetchinson wrote: I was referring to this comment by Ben: Suggestion: Please don't make efforts to fragment the community. This IMHO is hostile, because it presupposes that the mere goal of the OP is fragmenting the community It presupposes nothing of any goal. It describes a predictable result of the OP's efforts, and requests those efforts to cease. So I deny the characterisation of that request as hostile. [mass snippitude] If yes, with the substitution A = Ben and B = OP we get in order for Ben's request to make sense, Ben has to assume that the OP is making an effort to fragment the community. This assumption on the part of Ben, I think, is hostile, since it assumes that the OP is making an effort to do something not nice. Whether the OP is indeed doing something not nice, is irrelevant. If the OP does do something not nice, the hostility is warranted. If the OP is not doing anything not nice, the hostility is unwarranted. But the fact that Ben was hostile is a fact :) You were doing fine until you brought in the hostility. I must agree with Ben that his comment was not hostile. It was merely a statement. Not an exclamation, no name calling, just a plain request rooted in reality. And that's a fact. ;-) Shall we now discuss the nature of the space/time continuum and the exact reality of quarks? ~Ethan~ -- http://mail.python.org/mailman/listinfo/python-list
Re: how to remove the same words in the paragraph
kylin wrote: I want to remove all the punctuation and no need words form a string datasets for experiment. I need to remove the word if it appears in the paragraph twice. could some give me some clue or some useful function in the python. para = uI need to remove the word if it appears in the paragraph twice. could ... some give me some clue or some useful function in the python. ... print \n.join(sorted(set(para.translate(dict.fromkeys(map(ord, .:,-))).split( I appears clue could function give if in it me need or paragraph python remove some the to twice useful word -- http://mail.python.org/mailman/listinfo/python-list
Re: elementtree XML() unicode
On Nov 4, 12:14 pm, Kee Nethery k...@kagi.com wrote: On Nov 3, 2009, at 4:44 PM, Gabriel Genellina wrote: En Tue, 03 Nov 2009 21:01:46 -0300, Kee Nethery k...@kagi.com escribió: I've removed all the stuff in my code and tried to distill it down to just what is failing. Hopefully I have not removed something essential. Sounds like I did remove something essential. No, you added something that was not only inessential but caused trouble. et expects bytes as input, not unicode. You're decoding too early (decoding early is good, but not in this case, because et does the work for you). Either feed et.XML with the bytes before decoding, or reencode the received xml text in UTF-8 (since this is the declared encoding). Here is the code that hits the URL: getResponse1 = urllib2.urlopen(theUrl) getResponse2 = getResponse1.read() getResponse3 = unicode(getResponse2,'UTF-8') theResponseXml = et.XML(getResponse3) So are you saying I want to do: getResponse1 = urllib2.urlopen(theUrl) getResponse4 = getResponse1.read() theResponseXml = et.XML(getResponse4) You got the essence. Note: that in no way implies any approval of your naming convention :-) The reason I am confused is that getResponse2 is classified as an str in the Komodo IDE. I want to make sure I don't lose the non- ASCII characters coming from the URL. str is all about 8-bit bytes. Your data comes from the web in 8-bit bytes. No problem. Just don't palpate it unnecessarily. If I do the second set of code, does elementtree auto convert the str into unicode? Yes. See the example I gave in my earlier posting: | ...print c.tag, repr(c.text) | state u'\ue58d83\ue89189\ue79c8C' That first u means the type is unicode. How do I deal with the XML as unicode when I put it into elementtree as a string? That's unfortunately rather ambiguous: (1) put past/present? (2) string unicode/str? (3) what is referent of it? All text in what et returns is unicode [*] so you read it out as unicode (see above example) or written as unicode if you want to change it: your_element.text = u'a unicode object' [*] As an optimisation, et stores strings as str objects if they contain only ASCII bytes (and are thus losslessly convertible to unicode). In preparation for running your code under Python 3.X, it's best to ignore this and use unicode constants u'foo' (if you need text constants at all) even if et would let you get away with 'foo'. HTH, John -- http://mail.python.org/mailman/listinfo/python-list
Freezing python files into executables
Hello, I have been using freeze.py on 32 bit linux distributions without a problem. But recently I tried to do the same on RHEL5 x86_64 and ran into some issues. 1) When I ran the script, I got Error: needed directory /usr/lib/python2.4/config not found 2) Then I yum install python-devel which installed python-devel.i386 and python-devel.x86_64. Then when I tried freezing, it worked but make barfed up a bunch of errors during ld like /usr/bin/ld: warning: i386 architecture of input file `/usr/lib/python2.4/config/libpython2.4.a(rangeobject.o)' is incompatible with i386:x86-64 output and /usr/lib/python2.4/config/libpython2.4.a(posixmodule.o): In function `posix_getcwd': (.text+0x53a1): undefined reference to `PyEval_RestoreThread' 3) I tried uninstalling python-devel.i386 (retaining only the x86_64) and freeze fails with the same error message as in 1 Any help with this is greatly appreciated. Thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: elementtree XML() unicode
On Nov 3, 2009, at 5:27 PM, John Machin wrote:
On Nov 4, 11:01 am, Kee Nethery k...@kagi.com wrote:
Having an issue with elementtree XML() in python 2.6.4.
This code works fine:
from xml.etree import ElementTree as et
getResponse = u'''?xml version=1.0 encoding=UTF-8?
customershippingstatebobble/statecityhead/
citystreetcity/street/shipping/customer'''
theResponseXml = et.XML(getResponse)
This code errors out when it tries to do the et.XML()
from xml.etree import ElementTree as et
getResponse = u'''?xml version=1.0 encoding=UTF-8?
customershippingstate\ue58d83\ue89189\ue79c8C/statecity
\ue69f8f\ue5b882/citystreet\ue9ab98\ue58d97\ue58fb03/street/
shipping/customer'''
theResponseXml = et.XML(getResponse)
In my real code, I'm pulling the getResponse data from a web page
that
returns as XML and when I display it in the browser you can see the
Japanese characters in the data. I've removed all the stuff in my
code
and tried to distill it down to just what is failing. Hopefully I
have
not removed something essential.
Why is this not working and what do I need to do to use Elementtree
with unicode?
On Nov 4, 11:01 am, Kee Nethery k...@kagi.com wrote:
Having an issue with elementtree XML() in python 2.6.4.
This code works fine:
from xml.etree import ElementTree as et
getResponse = u'''?xml version=1.0 encoding=UTF-8?
customershippingstatebobble/statecityhead/
citystreetcity/street/shipping/customer'''
theResponseXml = et.XML(getResponse)
This code errors out when it tries to do the et.XML()
from xml.etree import ElementTree as et
getResponse = u'''?xml version=1.0 encoding=UTF-8?
customershippingstate\ue58d83\ue89189\ue79c8C/statecity
\ue69f8f\ue5b882/citystreet\ue9ab98\ue58d97\ue58fb03/street/
shipping/customer'''
theResponseXml = et.XML(getResponse)
In my real code, I'm pulling the getResponse data from a web page
that
returns as XML and when I display it in the browser you can see the
Japanese characters in the data. I've removed all the stuff in my
code
and tried to distill it down to just what is failing. Hopefully I
have
not removed something essential.
Why is this not working and what do I need to do to use Elementtree
with unicode?
What you need to do is NOT feed it unicode. You feed it a str object
and it gets decoded according to the encoding declaration found in the
first line.
That it uses the encoding declaration found in the first line is the
nugget of data that is not in the documentation that has stymied me
for days. Thank you!
The other thing that has been confusing is that I've been using dump
to view what is in the elementtree instance and the non-ASCII
characters have been displayed as numbered
entities (city#26575;#24066;/city) and I know that is not the
representation I want the data to be in. A co-worker suggested that
instead of dump that I use et.tostring(theResponseXml,
encoding='utf-8') and then print that to see the characters. That
process causes the non-ASCII characters to display as the glyphs I
know them to be.
If there was a place in the official docs for me to append these
nuggets of information to the sections for
xml.etree.ElementTree.XML(text) and
xml.etree.ElementTree.dump(elem) I would absolutely do so.
Thank you!
Kee Nethery
So take the str object that you get from the web (should
be UTF8-encoded already unless the header is lying), and throw that at
ET ... like this:
| Python 2.6.4 (r264:75708, Oct 26 2009, 08:23:19) [MSC v.1500 32 bit
(Intel)] on win32
| Type help, copyright, credits or license for more
information.
| from xml.etree import ElementTree as et
| ucode = u'''?xml version=1.0 encoding=UTF-8?
| ... customershipping
| ... state\ue58d83\ue89189\ue79c8C/state
| ... city\ue69f8f\ue5b882/city
| ... street\ue9ab98\ue58d97\ue58fb03/street
| ... /shipping/customer'''
| xml= et.XML(ucode)
| Traceback (most recent call last):
| File stdin, line 1, in module
| File C:\python26\lib\xml\etree\ElementTree.py, line 963, in XML
| parser.feed(text)
| File C:\python26\lib\xml\etree\ElementTree.py, line 1245, in
feed
| self._parser.Parse(data, 0)
| UnicodeEncodeError: 'ascii' codec can't encode character u'\ue58d'
in position 69: ordinal not in range(128)
| # as expected
| strg = ucode.encode('utf8')
| # encoding as utf8 is for DEMO purposes.
| # i.e. use the original web str object, don't convert it to unicode
| # and back to utf8.
| xml2 = et.XML(strg)
| xml2.tag
| 'customer'
| for c in xml2.getchildren():
| ...print c.tag, repr(c.text)
| ...
| shipping '\n'
| for c in xml2[0].getchildren():
| ...print c.tag, repr(c.text)
| ...
| state u'\ue58d83\ue89189\ue79c8C'
| city u'\ue69f8f\ue5b882'
| street u'\ue9ab98\ue58d97\ue58fb03'
|
By the way: (1) it usually helps to be more explicit than errors
out, preferably the exact copied/pasted output as shown above; this
is one of the rare cases where the error message
Re: import from a string
En Tue, 03 Nov 2009 17:36:08 -0300, iu2 isra...@elbit.co.il escribió:
On Nov 3, 7:49 pm, Matt McCredie mccre...@gmail.com wrote:
iu2 israelu at elbit.co.il writes:
Having a file called funcs.py, I would like to read it into a string,
and then import from that string.
That is instead of importing from the fie system, I wonder if it's
possible to eval the text in the string and treat it as a module.
mymodule = types.ModuleType(mymodule, Optional Doc-String)
with file('funcs.py') as f:
txt = f.read()
exec txt in globals(), mymodule.__dict__
sys.modules['mymodule'] = mymodule
Thanks, it seems simpler than I thought.
I don't fully understand , though, the exec statement, how it causes
the string execute in the context of mymodule.
Sometimes you don't even require a module, and this is simpler to
understand. Suppose you have a string like this:
txt =
def foo(x):
print 'x=', x
def bar(x):
return x + x
you may execute it:
py namespace = {}
py exec txt in namespace
The resulting namespace contains the foo and bar functions, and you may
call them:
py namespace.keys()
['__builtins__', 'foo', 'bar']
py namespace['foo']('hello')
x= hello
exec just executes the string using the given globals dictionary as its
global namespace. Whatever is present in the dictionary is visible in the
executed code as global variables (none in this example). The global names
that the code creates become entries in the dictionary. (foo and bar;
__builtins__ is an implementation detail of CPython). You may supply
separate globals and locals dictionaries.
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
Re: Freezing python files into executables
Hey Marc-Andre, Ummm - I have installed python-devel.x86_64 and checked that the /usr/lib64/python2.4/ is populated - anything else I can/shuld do to check/ensure the the devel rpm is installed? Thanks. On Tue, Nov 3, 2009 at 11:32 AM, M.-A. Lemburg m...@egenix.com wrote: Rami Chowdhury wrote: On Tue, 03 Nov 2009 11:15:39 -0800, Girish Venkatasubramanian giris...@gmail.com wrote: Hello, I have been using freeze.py on 32 bit linux distributions without a problem. But recently I tried to do the same on RHEL5 x86_64 and ran into some issues. 1) When I ran the script, I got Error: needed directory /usr/lib/python2.4/config not found I don't know anything about freeze.py but on 64-bit Red Hat distros (RHEL, Fedora, etc) it should be /usr/lib64/python2.4/config :-) This sounds a lot like a missing Python devel RPM. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ... http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Tkinter callback arguments
* Diez B. Roggisch: Alf P. Steinbach schrieb: * Diez B. Roggisch: Your comment about computed makes it more clear what that's all about. Also Bertrand Meyer (Eiffel language creator) had idea like that, he called it referential transparency. But I think when Python has this nice property mechanism, why do people change direct data attributes into properties and not the other way around or not at all, I mean using only properties for logical data attributes -- e.g. assuring correctness first via read-only property? I fail to see where read-only-ness of an attribute is a priori more correct than having modifyable attributes. No, I didn't mean that it is more correct to have an attribute as read-only. I meant that letting a logical data attribute start out as a read only property can help to ensure correctness. Which is the same thing said with other words. No, it's two different things. Whether something is correct or not, it can help to ensure correctness. For a different example of that, a formally incorrect debug thing can help to ensure correctness. For example, consider two rectangle classes R1 and R2, where R2 might be a successor to R1, at some point in system evolution replacing R1. R1 has logical data members left, top, width and height, and R2 has logical data members left, top, right and bottom. With R1 direct changes of left and top keeps the rectangle's size (since that size is specified by width and height), while with R2 it changes the rectangle's size. R1 is implemented with logical data members as directly exposed data attributes. Some code in the system deals only with R1 objects and for convenience or efficiency or whatever uses direct modification instead of set_position method. Due to new requirements it instead has to deal with R2 objects, with same methods. But due to the direct modification of object state it now changes the rectangle sizes, but at first it's not noticed since the attempted rectangle position changes are very small. People get upset. The bug is fixed. Time has been wasted. If there is need for mutable rectangles, there is need for mutable rectangles. Using properties instead of attributes doesn't help In the example above using properties would have avoided the problem. Hence your conclusion is wrong. :-) - if you change semantics of something, code might break. Yes, but that's totally out of the blue. If you, say, paint your nose bright green, then people might stare at it. That has nothing to do do with anything discussed here, and so anyone mentioning that as purportedly relevant to anything discussed here, would implicitly be saying I don't understand anything abour it, and that's effectively what you're saying, sorry. However, I do understand what got you confused. Changing the internal representation of a class is not to change the class' semantics. It belongs to the class only. Anyone availing himself or herself of access to that internal representation is doing something that may or may not work in the future and would ideally be doing it at own's risk, but as the example above illustrated, they're most often doing it at *other*'s risk. And so the issue is how to get them to not do it, even when they think that nobody will check their code until next version of Lib XYZ comes in a year... And that's where using properties from the start enters the picture, making it less convenient for those tinkerers to use internal representation details. In Python, attributes are part of the public interface as long as you don't explicitly define them otherwise. Not sure what that refers to. But preliminary assumptions about what could be in some yet unseen future is introducing more code with more chances of errors No not really. , reducing the flexibility at the same time. I still fail to see where that's good. Yes. Consider the *nix convention for files, that they're just byte streams. They're *restricted* to byte streams. That's darn inflexible, yes? And totally ungood. :-) (Note: irony) Code for what you need code for. It works - in all languages, but especially in Python. Whether that's good advice depends on what you're doing and in what kind of job setting you're doing it. For many cases it is, in essence, a very selfish way. It gets down to saving time *now* for increased future maintainance times for others, which of course is the only rational choice /if/ one is sure to get away with it. OK, I'm not antirely serious but it sounds like you're thinking in this way, to some degree. But check out any debate on Python vs. Perl, in particular about maintainability. Cheers hth., - Alf -- http://mail.python.org/mailman/listinfo/python-list
how to remove the punctuation and no need words from paragraphs
I want to remove all the punctuation and no need words form a string datasets for experiment. I am new to python, please give me some clue and direction to write this code. -- http://mail.python.org/mailman/listinfo/python-list
Re: Handling large datastore search
Ahmed Barakat wrote: In case I have a huge datastore (1 entries, each entry has like 6 properties), what is the best way to handle the search within such a huge datastore, and what if I want to make a generic search, for example you write a word and i use it to search within all properties I have for all entries? Is the conversion to XML a good solution, or it is not? sorry for being new to web development, and python. Thanks in advance. I don't see anything about your query which is specific to web development, and there's no need to be apologetic for being new anyway. One person's huge is another person's pretty large. I'd say 1 items is pretty small if you're working on the desktop, as you can readily hold all the data in memory. I edit text files bigger than that. But I'll assume your data really is huge, or will grow to be huge, or is an environment which treats it as huge. When you're parsing large amounts of data, there are always tradeoffs between performance and other characteristics, usually size and complexity. If you have lots of data, you're probably best off by using a standard code system -- a real database. The developers of such things have decades of experience in making certain things fast, reliable, and self-consistent. But considering only speed here, I have to point out that you have to understand databases, and your particular model of database, pretty well to really benefit from all the performance tricks in there. Keeping it abstract, you specify what parts of the data you care about fast random access to. If you want fast search access to all of it, your database will generally be huge, and very slow to updates. And the best way to avoid that is to pick a database mechanism that best fits your search mechanism. I hate to think how many man-centuries Google has dedicated to getting fast random word access to its *enormous* database. I'm sure they did not build on a standard relational model. If you plan to do it yourself, I'd say the last thing you want to do is use XML. XML may be convenient way to store self-describing data, but it's not quick to parse large amounts of it. Instead, store the raw data in text form, with separate index files describing what is where. Anything that's indexed will be found rapidly, while anything that isn't will require search of the raw data. There are algorithms for searching raw data that are faster than scanning every byte, but a relevant index will almost always be faster. DaveA -- http://mail.python.org/mailman/listinfo/python-list
Calendar Problem
Hi; I have the following: import calendar, datetime myCal = calendar.calendar(6) today = datetime.date.today() day = today.day mo = today.month yr = today.year month = myCal.monthdayscalendar(yr, mo) The last line throws errors no matter how I try and tweak it. The current incarnation complains about myCal being a string. What do? TIA, Victor -- http://mail.python.org/mailman/listinfo/python-list
Re: elementtree XML() unicode
En Tue, 03 Nov 2009 21:01:46 -0300, Kee Nethery k...@kagi.com escribió: Having an issue with elementtree XML() in python 2.6.4. This code works fine: from xml.etree import ElementTree as et getResponse = u'''?xml version=1.0 encoding=UTF-8? customershippingstatebobble/statecityhead/ citystreetcity/street/shipping/customer''' theResponseXml = et.XML(getResponse) This code errors out when it tries to do the et.XML() from xml.etree import ElementTree as et getResponse = u'''?xml version=1.0 encoding=UTF-8? customershippingstate\ue58d83\ue89189\ue79c8C/statecity \ue69f8f\ue5b882/citystreet\ue9ab98\ue58d97\ue58fb03/street/ shipping/customer''' theResponseXml = et.XML(getResponse) In my real code, I'm pulling the getResponse data from a web page that returns as XML and when I display it in the browser you can see the Japanese characters in the data. I've removed all the stuff in my code and tried to distill it down to just what is failing. Hopefully I have not removed something essential. Why is this not working and what do I need to do to use Elementtree with unicode? et expects bytes as input, not unicode. You're decoding too early (decoding early is good, but not in this case, because et does the work for you). Either feed et.XML with the bytes before decoding, or reencode the received xml text in UTF-8 (since this is the declared encoding). -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Cast into custom type
En Tue, 03 Nov 2009 09:07:01 -0300, Henning Bredel henning.bre...@gmx.de
escribió:
On Tue, 03 Nov 2009 10:18:29 +, Steven D'Aprano wrote:
You need to give some actual examples of what you are trying to do, and
what you are expecting to happen. How is initialized() being called?
Example: Assume a framework which offers common functionality for a
plugin
or a module a user can choose at the beginning. The framework does not
know the concrete type of the plugin so it is possible to extend it by
implementing a well known interface or abstract class.
The framework reads the plugin directory, loads each module and creates
buttons for each plugin with a callback method for initializing. To use
common functionality of the framework, initialization method takes it as
the parent parameter.
Then forget about the code you read in that blog post, doesn't apply to
your use case.
I think this listing makes the most sense to you:
# initialize all plugins
self._plugin_modules = _load_plugins() # imp loading here
LOGGER.debug(ActionProvider.plugins) # print what was loaded
for plugin in ActionProvider.plugins: # create button for each
app_button = gtk.Button(plugin.title)
LOGGER.debug('Title of plugin: %s' % plugin.title)
app_button.connect(clicked,
plugin.initialize(plugin, self),
None)
self.set_canvas(app_button)
app_button.show()
Try something like this:
--- begin plugin.py ---
class Plugin(object):
Every plugin class should have a docstring
def __init__(self, manager):
pass
--- end plugin.py ---
--- begin pluginmgr.py --
import os.path
from glob import glob
from plugin import Plugin
class PluginManager:
def __init__(self, plugin_directory):
self.plugin_directory = plugin_directory
self.plugins = []
def load_all(self):
for fn in glob(os.path.join(self.plugin_directory, '*.py')):
namespace = {}
execfile(fn, namespace)
for name, obj in namespace.items():
if (isinstance(obj, type) and
issubclass(obj, Plugin) and
obj is not Plugin):
# obj is a Plugin subclass
cls = obj
print cls.__name__, fn
print cls.__doc__
print
plugin = cls(self) # call the constructor
self.plugins.append(plugin)
if __name__ == '__main__':
mgr = PluginManager(r'd:\\temp\\plugins')
mgr.load_all()
print mgr.plugins
--- end pluginmgr.py ---
--- begin one.py in the plugins directory ---
from plugin import Plugin
class MyPlugin(Plugin):
The most wonderful plugin in the world.
This plugin does this, and that,
and also that, too.
It's very nice, I assure you.
class Second(Plugin):
My second plugin. I don't know what
is this for, but it works.
--- end one.py ---
Plugin is the base class; all plugins must inherit from it. PluginMgr
scans the plugin directory, executes all modules it finds there (be
careful...), and looks for Plugin subclasses. Then creates an instance of
each Plugin subclass.
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
how to remove the same words in the paragraph
I need to remove the word if it appears in the paragraph twice. could some give me some clue or some useful function in the python. -- http://mail.python.org/mailman/listinfo/python-list
Re: import from a string
On Nov 3, 7:49 pm, Matt McCredie mccre...@gmail.com wrote:
iu2 israelu at elbit.co.il writes:
Hi,
Having a file called funcs.py, I would like to read it into a string,
and then import from that string.
That is instead of importing from the fie system, I wonder if it's
possible to eval the text in the string and treat it as a module.
For example
with file('funcs.py') as f: txt = r.read()
string_import(txt, 'funcs') # is string_import possible?
to have now a module called funcs with the functions defined in
funcs.py.
You can do something like this:
import types
import sys
mymodule = types.ModuleType(mymodule, Optional Doc-String)
with file('funcs.py') as f:
txt = f.read()
exec txt in globals(), mymodule.__dict__
sys.modules['mymodule'] = mymodule
Note that you shouldn't exec untrusted code.
You might also look at the __import__ funciton, which can import by python
path.
You might also look at the imp module.
Matt
Thanks, it seems simpler than I thought.
I don't fully understand , though, the exec statement, how it causes
the string execute in the context of mymodule.
--
http://mail.python.org/mailman/listinfo/python-list
Re: Pyfora, a place for python
On Tue, 03 Nov 2009 15:58:30 -, Daniel Fetchinson fetchin...@googlemail.com wrote: If yes, we are almost there! In our example the request of A only makes sense if B is making an effort to fragment the community, in other words, assuming that A tries to make a meaningful request, A is assuming that B is making an effort to fragment the community. You are assuming here that B is intending his efforts to do X, and that A believes this to be the case. That's the assumption where your chain of logic fails; it is entirely possible that A's statement is abridging a chain of logic that B hasn't considered, and that A is making no assumption of any kind concerning B's intent. Say hello to the Law of Unintended Consequences. -- Rhodri James *-* Wildebeest Herder to the Masses -- http://mail.python.org/mailman/listinfo/python-list
Re: Freezing python files into executables
On Tue, 03 Nov 2009 11:15:39 -0800, Girish Venkatasubramanian giris...@gmail.com wrote: Hello, I have been using freeze.py on 32 bit linux distributions without a problem. But recently I tried to do the same on RHEL5 x86_64 and ran into some issues. 1) When I ran the script, I got Error: needed directory /usr/lib/python2.4/config not found I don't know anything about freeze.py but on 64-bit Red Hat distros (RHEL, Fedora, etc) it should be /usr/lib64/python2.4/config :-) -- Rami Chowdhury Never attribute to malice that which can be attributed to stupidity -- Hanlon's Razor 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD) -- http://mail.python.org/mailman/listinfo/python-list
Re: comparing alternatives to py2exe
On Nov 3, 5:58 pm, Jonathan Hartley tart...@tartley.com wrote: Hi, Recently I put together this incomplete comparison chart in an attempt to choose between the different alternatives to py2exe: http://spreadsheets.google.com/pub?key=tZ42hjaRunvkObFq0bKxVdgoutput... Columns represent methods of deploying to end-users such that they don't have to worry about installing Python, packages or other dependencies. 'Bundle' represents manually bundling an interpreter with your app. 'Bootstrap' represents a fanciful idea of mine to include an installer that downloads and installs an interpreter if necessary. This sounds fiddly, since it would have to install side-by- side with any existing interpreters of the wrong version, without breaking anything. Has anyone done this? The remaining columns represent the projects out there I could find which would do the bundling for me. Are there major things I'm missing or misunderstanding? Perhaps folks on the list would care to rate (+1/-1) rows that they find important or unimportant, or suggest additional rows that would be important to them. Maybe an updated and complete version of this table would help people agree on what's important, and help the various projects to improve faster. Best regards, Jonathan Another thing that I think is of interest is whether the application support modifying the version and description of the exe (that is, on Windows, when you right-click on an application and choose 'properties' you view the version number and description of the application, it is a resource inside the exe). I think py2exe supports it. -- http://mail.python.org/mailman/listinfo/python-list
elementtree XML() unicode
Having an issue with elementtree XML() in python 2.6.4. This code works fine: from xml.etree import ElementTree as et getResponse = u'''?xml version=1.0 encoding=UTF-8? customershippingstatebobble/statecityhead/ citystreetcity/street/shipping/customer''' theResponseXml = et.XML(getResponse) This code errors out when it tries to do the et.XML() from xml.etree import ElementTree as et getResponse = u'''?xml version=1.0 encoding=UTF-8? customershippingstate\ue58d83\ue89189\ue79c8C/statecity \ue69f8f\ue5b882/citystreet\ue9ab98\ue58d97\ue58fb03/street/ shipping/customer''' theResponseXml = et.XML(getResponse) In my real code, I'm pulling the getResponse data from a web page that returns as XML and when I display it in the browser you can see the Japanese characters in the data. I've removed all the stuff in my code and tried to distill it down to just what is failing. Hopefully I have not removed something essential. Why is this not working and what do I need to do to use Elementtree with unicode? Thanks, Kee Nethery -- http://mail.python.org/mailman/listinfo/python-list
Re: elementtree XML() unicode
On Nov 3, 2009, at 4:44 PM, Gabriel Genellina wrote: En Tue, 03 Nov 2009 21:01:46 -0300, Kee Nethery k...@kagi.com escribió: I've removed all the stuff in my code and tried to distill it down to just what is failing. Hopefully I have not removed something essential. Sounds like I did remove something essential. et expects bytes as input, not unicode. You're decoding too early (decoding early is good, but not in this case, because et does the work for you). Either feed et.XML with the bytes before decoding, or reencode the received xml text in UTF-8 (since this is the declared encoding). Here is the code that hits the URL: getResponse1 = urllib2.urlopen(theUrl) getResponse2 = getResponse1.read() getResponse3 = unicode(getResponse2,'UTF-8') theResponseXml = et.XML(getResponse3) So are you saying I want to do: getResponse1 = urllib2.urlopen(theUrl) getResponse4 = getResponse1.read() theResponseXml = et.XML(getResponse4) The reason I am confused is that getResponse2 is classified as an str in the Komodo IDE. I want to make sure I don't lose the non- ASCII characters coming from the URL. If I do the second set of code, does elementtree auto convert the str into unicode? How do I deal with the XML as unicode when I put it into elementtree as a string? Very confusing. Thanks for the help. Kee -- http://mail.python.org/mailman/listinfo/python-list
Re: elementtree XML() unicode
On Nov 4, 1:06 pm, Kee Nethery k...@kagi.com wrote: On Nov 3, 2009, at 5:27 PM, John Machin wrote: On Nov 4, 11:01 am, Kee Nethery k...@kagi.com wrote: Why is this not working and what do I need to do to use Elementtree with unicode? What you need to do is NOT feed it unicode. You feed it a str object and it gets decoded according to the encoding declaration found in the first line. That it uses the encoding declaration found in the first line is the nugget of data that is not in the documentation that has stymied me for days. Thank you! And under the don't repeat principle, it shouldn't be in the Elementtree docs; it's nothing special about ET -- it's part of the definition of an XML document (which for universal loss-free transportability naturally must be encoded somehow, and the document must state what its own encoding is (if it's not the default (UTF-8))). The other thing that has been confusing is that I've been using dump to view what is in the elementtree instance and the non-ASCII characters have been displayed as numbered entities (city#26575;#24066;/city) and I know that is not the representation I want the data to be in. A co-worker suggested that instead of dump that I use et.tostring(theResponseXml, encoding='utf-8') and then print that to see the characters. That process causes the non-ASCII characters to display as the glyphs I know them to be. If there was a place in the official docs for me to append these nuggets of information to the sections for xml.etree.ElementTree.XML(text) and xml.etree.ElementTree.dump(elem) I would absolutely do so. I don't understand ... tostring() is in the same section as dump(), about two screen-heights away. You want to include the tostring() docs in the dump() docs? The usual idea is not to get bogged down in the first function that looks at first glance like it might do what you want (look at the glyphs) but doesn't (it writes a (transportable) XML stream) but press on to the next plausible candidate. -- http://mail.python.org/mailman/listinfo/python-list
Re: self.__dict__ tricks
On Tue, 03 Nov 2009 09:59:32 -0800, Ethan Furman et...@stoneleaf.us wrote: Simon Brunning wrote: 2009/11/1 Steven D'Aprano st...@remove-this-cybersource.com.au: The only stupid question is the one you are afraid to ask. I was once asked, and I quote exactly, are there any fish in the Atlantic sea? That's pretty stupid. ;-) Are there any fish in the Dead Sea? Depends on how you define fish, surely ;-)? -- Rami Chowdhury Never attribute to malice that which can be attributed to stupidity -- Hanlon's Razor 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD) -- http://mail.python.org/mailman/listinfo/python-list
Re: Freezing python files into executables
On Tue, 03 Nov 2009 11:57:17 -0800, Girish Venkatasubramanian giris...@gmail.com wrote: I checked and ls /usr/lib64/python2.4/config/ returns config.c config.c.in install-sh libpython2.4.a Makefile makesetup python.o Setup Setup.config Setup.local so I am guessing the python-devel installation went off OK, from what you say. I looked at the freeze.py code and I see your point. But for tweaking, I would need to know what modules should get included from lib64 instead of lib and hardcode them Maybe tinkering around with the makefile which is produced by freeze is a better way to go? But since I need to freeze this python code by today, can you suggest any other tool to do this? I believe /usr/lib64 on a 64-bit RHEL will contain everything you need ; can you try just changing the directory freeze.py looks at to 'lib64', and see if the freeze works? On Tue, Nov 3, 2009 at 11:47 AM, M.-A. Lemburg m...@egenix.com wrote: Girish Venkatasubramanian wrote: Hey Marc-Andre, Ummm - I have installed python-devel.x86_64 and checked that the /usr/lib64/python2.4/ is populated - anything else I can/shuld do to check/ensure the the devel rpm is installed? If you have the config/ sub-dir in there, things should be fine. However, it's possible that you need to tweek the freeze.py script a little, since RedHat chose to split the Python installation on x64 in two parts and they may have missed patching freeze.py as well: The platform independent parts are in /usr/lib, whereas the platform dependent parts are in /usr/lib64. Python normally doesn't support this. It only has a prefix and an exec_prefix, but those only allow to do things like prefix=/usr and exec_prefix=/usr64, not changing the lib/ part in /usr/lib/. Thanks. On Tue, Nov 3, 2009 at 11:32 AM, M.-A. Lemburg m...@egenix.com wrote: Rami Chowdhury wrote: On Tue, 03 Nov 2009 11:15:39 -0800, Girish Venkatasubramanian giris...@gmail.com wrote: Hello, I have been using freeze.py on 32 bit linux distributions without a problem. But recently I tried to do the same on RHEL5 x86_64 and ran into some issues. 1) When I ran the script, I got Error: needed directory /usr/lib/python2.4/config not found I don't know anything about freeze.py but on 64-bit Red Hat distros (RHEL, Fedora, etc) it should be /usr/lib64/python2.4/config :-) This sounds a lot like a missing Python devel RPM. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ... http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ... http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- Rami Chowdhury Never attribute to malice that which can be attributed to stupidity -- Hanlon's Razor 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD) -- http://mail.python.org/mailman/listinfo/python-list
Re: self.__dict__ tricks
On Tue, 03 Nov 2009 11:26:49 +, Simon Brunning wrote: 2009/11/1 Steven D'Aprano st...@remove-this-cybersource.com.au: The only stupid question is the one you are afraid to ask. I was once asked, and I quote exactly, are there any fish in the Atlantic sea? That's pretty stupid. ;-) Once in the distant past, there were no fish in what would become the Atlantic Ocean (not sea); and some day in the future there won't be any fish either. At the rate we're going that day may not be that far away: fish are being over-fished all over the world, jellyfish are blooming, and there are areas of the Namibian continental where the dominant species have flipped from fish to jellyfish: http://www.scienceinafrica.co.za/2009/september/jellyfish.htm http://www.sciencedaily.com/releases/2006/07/060711091411.htm http://www.sciencedaily.com/releases/2009/06/090609092057.htm So, no, not a stupid question at all. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: elementtree XML() unicode
En Tue, 03 Nov 2009 23:06:58 -0300, Kee Nethery k...@kagi.com escribió: If there was a place in the official docs for me to append these nuggets of information to the sections for xml.etree.ElementTree.XML(text) and xml.etree.ElementTree.dump(elem) I would absolutely do so. http://bugs.python.org/ applies to documentation too. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: how to remove the same words in the paragraph
On Tue, Nov 3, 2009 at 11:13 PM, kylin huili.s...@gmail.com wrote: I need to remove the word if it appears in the paragraph twice. could some give me some clue or some useful function in the python. Well, it depends a bit on what you call 'the same word' (In the paragraph Fly fly, fly! does the word fly occur 0, 1, 2 or 3 times?), but the split() function seems a logical choice to use whatever the answer to that question. -- André Engels, andreeng...@gmail.com -- http://mail.python.org/mailman/listinfo/python-list
Re: pythonw.exe under Windows-7 (Won't run for one admin user)
On Tue, 03 Nov 2009 16:00:16 -, SD_V897 sd_v...@nosuchmail.com wrote: I have a perplexing issue, I have four users set up on a W7 computer. The program runs fine for all users except the admin user who needs it for school assignments. A little more information, please. How does it not work for the admin user? Is there a traceback? What do you get if you try to invoke it from a command line? -- Rhodri James *-* Wildebeest Herder to the Masses -- http://mail.python.org/mailman/listinfo/python-list
Re: chr / ord
thanks. that did the trick. in case anyone else is in the same boat as myself, here are the relevant correspondences: string - [int] bytes - [int] --- -- lambda string: [ord(x) for x in string] list lambda ints: ''.join([chr(x) for x in ints]) bytes -- http://mail.python.org/mailman/listinfo/python-list
Re: how to remove the same words in the paragraph
kylin wrote: I need to remove the word if it appears in the paragraph twice. could some give me some clue or some useful function in the python. Sounds like homework. To fail your class, use this one: p = one two three four five six seven three four eight s = set() print ' '.join(w for w in p.split() if not (w in s or s.add(w))) one two three four five six seven eight which is absolutely horrible because it mutates the set within the list comprehension. The passable solution would use a for-loop to iterate over each word in the paragraph, emitting it if it hadn't already been seen. Maintain those words in set, so your words know how not to be seen. (Mr. Nesbitt, would you please stand up?) This also assumes your paragraph consists only of words and whitespace. But since you posted your previous homework-sounding question on stripping out non-word/whitespace characters, you'll want to look into using a regexp like [\w\s] to clean up the cruft in the paragraph. Neither solution above preserves non white-space/word characters, for which I'd recommend using a re.sub() with a callback. Such a callback class might look something like class Dedupe: ... def __init__(self): ... self.s = set() ... def __call__(self, m): ... w = m.group(0) ... if w in self.s: return '' ... self.s.add(w) ... return w ... r.sub(Dedupe(), p) where I leave the definition of r to the student. Also beware of case-differences for which you might have to normalize. You'll also want to use more descriptive variable names than my one-letter tokens. -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: Freezing python files into executables
Will try that. Meanwhile I went ahead and used cx_freeze and that seems to work OK. Thanks for your help Rami and Marc-Andre. On Tue, Nov 3, 2009 at 12:31 PM, Rami Chowdhury rami.chowdh...@gmail.com wrote: On Tue, 03 Nov 2009 11:57:17 -0800, Girish Venkatasubramanian giris...@gmail.com wrote: I checked and ls /usr/lib64/python2.4/config/ returns config.c config.c.in install-sh libpython2.4.a Makefile makesetup python.o Setup Setup.config Setup.local so I am guessing the python-devel installation went off OK, from what you say. I looked at the freeze.py code and I see your point. But for tweaking, I would need to know what modules should get included from lib64 instead of lib and hardcode them Maybe tinkering around with the makefile which is produced by freeze is a better way to go? But since I need to freeze this python code by today, can you suggest any other tool to do this? I believe /usr/lib64 on a 64-bit RHEL will contain everything you need ; can you try just changing the directory freeze.py looks at to 'lib64', and see if the freeze works? On Tue, Nov 3, 2009 at 11:47 AM, M.-A. Lemburg m...@egenix.com wrote: Girish Venkatasubramanian wrote: Hey Marc-Andre, Ummm - I have installed python-devel.x86_64 and checked that the /usr/lib64/python2.4/ is populated - anything else I can/shuld do to check/ensure the the devel rpm is installed? If you have the config/ sub-dir in there, things should be fine. However, it's possible that you need to tweek the freeze.py script a little, since RedHat chose to split the Python installation on x64 in two parts and they may have missed patching freeze.py as well: The platform independent parts are in /usr/lib, whereas the platform dependent parts are in /usr/lib64. Python normally doesn't support this. It only has a prefix and an exec_prefix, but those only allow to do things like prefix=/usr and exec_prefix=/usr64, not changing the lib/ part in /usr/lib/. Thanks. On Tue, Nov 3, 2009 at 11:32 AM, M.-A. Lemburg m...@egenix.com wrote: Rami Chowdhury wrote: On Tue, 03 Nov 2009 11:15:39 -0800, Girish Venkatasubramanian giris...@gmail.com wrote: Hello, I have been using freeze.py on 32 bit linux distributions without a problem. But recently I tried to do the same on RHEL5 x86_64 and ran into some issues. 1) When I ran the script, I got Error: needed directory /usr/lib/python2.4/config not found I don't know anything about freeze.py but on 64-bit Red Hat distros (RHEL, Fedora, etc) it should be /usr/lib64/python2.4/config :-) This sounds a lot like a missing Python devel RPM. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ... http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ... http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- Rami Chowdhury Never attribute to malice that which can be attributed to stupidity -- Hanlon's Razor 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD) -- http://mail.python.org/mailman/listinfo/python-list
fastPATX Panther for your speedy web browsing needs!
fastPATX Panther is now out! It beats Firefox on startup and is very lightweight you have to try it! Download here: http://bitbucket.org/patx/fastpatx/fastpatx-panther.py -- patx, python gui and web, http://patx.me -- http://mail.python.org/mailman/listinfo/python-list
Re: elementtree XML() unicode
On Nov 4, 11:01 am, Kee Nethery k...@kagi.com wrote:
Having an issue with elementtree XML() in python 2.6.4.
This code works fine:
from xml.etree import ElementTree as et
getResponse = u'''?xml version=1.0 encoding=UTF-8?
customershippingstatebobble/statecityhead/
citystreetcity/street/shipping/customer'''
theResponseXml = et.XML(getResponse)
This code errors out when it tries to do the et.XML()
from xml.etree import ElementTree as et
getResponse = u'''?xml version=1.0 encoding=UTF-8?
customershippingstate\ue58d83\ue89189\ue79c8C/statecity
\ue69f8f\ue5b882/citystreet\ue9ab98\ue58d97\ue58fb03/street/
shipping/customer'''
theResponseXml = et.XML(getResponse)
In my real code, I'm pulling the getResponse data from a web page that
returns as XML and when I display it in the browser you can see the
Japanese characters in the data. I've removed all the stuff in my code
and tried to distill it down to just what is failing. Hopefully I have
not removed something essential.
Why is this not working and what do I need to do to use Elementtree
with unicode?
On Nov 4, 11:01 am, Kee Nethery k...@kagi.com wrote:
Having an issue with elementtree XML() in python 2.6.4.
This code works fine:
from xml.etree import ElementTree as et
getResponse = u'''?xml version=1.0 encoding=UTF-8?
customershippingstatebobble/statecityhead/
citystreetcity/street/shipping/customer'''
theResponseXml = et.XML(getResponse)
This code errors out when it tries to do the et.XML()
from xml.etree import ElementTree as et
getResponse = u'''?xml version=1.0 encoding=UTF-8?
customershippingstate\ue58d83\ue89189\ue79c8C/statecity
\ue69f8f\ue5b882/citystreet\ue9ab98\ue58d97\ue58fb03/street/
shipping/customer'''
theResponseXml = et.XML(getResponse)
In my real code, I'm pulling the getResponse data from a web page that
returns as XML and when I display it in the browser you can see the
Japanese characters in the data. I've removed all the stuff in my code
and tried to distill it down to just what is failing. Hopefully I have
not removed something essential.
Why is this not working and what do I need to do to use Elementtree
with unicode?
What you need to do is NOT feed it unicode. You feed it a str object
and it gets decoded according to the encoding declaration found in the
first line. So take the str object that you get from the web (should
be UTF8-encoded already unless the header is lying), and throw that at
ET ... like this:
| Python 2.6.4 (r264:75708, Oct 26 2009, 08:23:19) [MSC v.1500 32 bit
(Intel)] on win32
| Type help, copyright, credits or license for more
information.
| from xml.etree import ElementTree as et
| ucode = u'''?xml version=1.0 encoding=UTF-8?
| ... customershipping
| ... state\ue58d83\ue89189\ue79c8C/state
| ... city\ue69f8f\ue5b882/city
| ... street\ue9ab98\ue58d97\ue58fb03/street
| ... /shipping/customer'''
| xml= et.XML(ucode)
| Traceback (most recent call last):
| File stdin, line 1, in module
| File C:\python26\lib\xml\etree\ElementTree.py, line 963, in XML
| parser.feed(text)
| File C:\python26\lib\xml\etree\ElementTree.py, line 1245, in
feed
| self._parser.Parse(data, 0)
| UnicodeEncodeError: 'ascii' codec can't encode character u'\ue58d'
in position 69: ordinal not in range(128)
| # as expected
| strg = ucode.encode('utf8')
| # encoding as utf8 is for DEMO purposes.
| # i.e. use the original web str object, don't convert it to unicode
| # and back to utf8.
| xml2 = et.XML(strg)
| xml2.tag
| 'customer'
| for c in xml2.getchildren():
| ...print c.tag, repr(c.text)
| ...
| shipping '\n'
| for c in xml2[0].getchildren():
| ...print c.tag, repr(c.text)
| ...
| state u'\ue58d83\ue89189\ue79c8C'
| city u'\ue69f8f\ue5b882'
| street u'\ue9ab98\ue58d97\ue58fb03'
|
By the way: (1) it usually helps to be more explicit than errors
out, preferably the exact copied/pasted output as shown above; this
is one of the rare cases where the error message is predictable (2)
PLEASE don't start a new topic in a reply in somebody else's thread.
--
http://mail.python.org/mailman/listinfo/python-list
Re: Freezing python files into executables
Girish Venkatasubramanian wrote: Hey Marc-Andre, Ummm - I have installed python-devel.x86_64 and checked that the /usr/lib64/python2.4/ is populated - anything else I can/shuld do to check/ensure the the devel rpm is installed? If you have the config/ sub-dir in there, things should be fine. However, it's possible that you need to tweek the freeze.py script a little, since RedHat chose to split the Python installation on x64 in two parts and they may have missed patching freeze.py as well: The platform independent parts are in /usr/lib, whereas the platform dependent parts are in /usr/lib64. Python normally doesn't support this. It only has a prefix and an exec_prefix, but those only allow to do things like prefix=/usr and exec_prefix=/usr64, not changing the lib/ part in /usr/lib/. Thanks. On Tue, Nov 3, 2009 at 11:32 AM, M.-A. Lemburg m...@egenix.com wrote: Rami Chowdhury wrote: On Tue, 03 Nov 2009 11:15:39 -0800, Girish Venkatasubramanian giris...@gmail.com wrote: Hello, I have been using freeze.py on 32 bit linux distributions without a problem. But recently I tried to do the same on RHEL5 x86_64 and ran into some issues. 1) When I ran the script, I got Error: needed directory /usr/lib/python2.4/config not found I don't know anything about freeze.py but on 64-bit Red Hat distros (RHEL, Fedora, etc) it should be /usr/lib64/python2.4/config :-) This sounds a lot like a missing Python devel RPM. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ...http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ...http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ...http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ...http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Help resolve a syntax error on 'as' keyword (python 2.5)
En Tue, 03 Nov 2009 10:06:24 -0300, Oltmans rolf.oltm...@gmail.com escribió: Hi, all. All I'm trying to do is to print the error message using the following code (copying/pasting from IDLE). try: div(5,0) except Exception as msg: print msg SyntaxError: invalid syntax I'm using Python 2.5 on Windows XP. Other people already told you what the problem is. I suggest reading a book/tutorial written for the *same* Python version you're using (2.x; it doesn't matter 2.6, 2.5, 2.4...). Once you know the basics of the language, you may look at the differences in the What's new? document for Python 3.0 - but right now, they will just confuse you. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: comparing alternatives to py2exe
On Tue, Nov 3, 2009 at 3:50 PM, iu2 isra...@elbit.co.il wrote: On Nov 3, 5:58 pm, Jonathan Hartley tart...@tartley.com wrote: Hi, Recently I put together this incomplete comparison chart in an attempt to choose between the different alternatives to py2exe: http://spreadsheets.google.com/pub?key=tZ42hjaRunvkObFq0bKxVdgoutput... Columns represent methods of deploying to end-users such that they don't have to worry about installing Python, packages or other dependencies. 'Bundle' represents manually bundling an interpreter with your app. 'Bootstrap' represents a fanciful idea of mine to include an installer that downloads and installs an interpreter if necessary. This sounds fiddly, since it would have to install side-by- side with any existing interpreters of the wrong version, without breaking anything. Has anyone done this? The remaining columns represent the projects out there I could find which would do the bundling for me. Are there major things I'm missing or misunderstanding? Perhaps folks on the list would care to rate (+1/-1) rows that they find important or unimportant, or suggest additional rows that would be important to them. Maybe an updated and complete version of this table would help people agree on what's important, and help the various projects to improve faster. Best regards, Jonathan Another thing that I think is of interest is whether the application support modifying the version and description of the exe (that is, on Windows, when you right-click on an application and choose 'properties' you view the version number and description of the application, it is a resource inside the exe). I think py2exe supports it. py2exe supports this, cx_freeze doesn't. - Max -- http://mail.python.org/mailman/listinfo/python-list
Re: Freezing python files into executables
On Nov 3, 3:23 pm, Girish Venkatasubramanian giris...@gmail.com wrote: Will try that. Meanwhile I went ahead and used cx_freeze and that seems to work OK. Thanks for your help Rami and Marc-Andre. Something that you might want to try in the future is GUI2Exe, which allows you to play with a whole slew of freezing modules: http://code.google.com/p/gui2exe/ I've been using it to make executables on Windows through it's py2exe implementation. --- Mike Driscoll Blog: http://blog.pythonlibrary.org -- http://mail.python.org/mailman/listinfo/python-list
Re: Freezing python files into executables
I checked and ls /usr/lib64/python2.4/config/ returns config.c config.c.in install-sh libpython2.4.a Makefile makesetup python.o Setup Setup.config Setup.local so I am guessing the python-devel installation went off OK, from what you say. I looked at the freeze.py code and I see your point. But for tweaking, I would need to know what modules should get included from lib64 instead of lib and hardcode them Maybe tinkering around with the makefile which is produced by freeze is a better way to go? But since I need to freeze this python code by today, can you suggest any other tool to do this? Thanks. On Tue, Nov 3, 2009 at 11:47 AM, M.-A. Lemburg m...@egenix.com wrote: Girish Venkatasubramanian wrote: Hey Marc-Andre, Ummm - I have installed python-devel.x86_64 and checked that the /usr/lib64/python2.4/ is populated - anything else I can/shuld do to check/ensure the the devel rpm is installed? If you have the config/ sub-dir in there, things should be fine. However, it's possible that you need to tweek the freeze.py script a little, since RedHat chose to split the Python installation on x64 in two parts and they may have missed patching freeze.py as well: The platform independent parts are in /usr/lib, whereas the platform dependent parts are in /usr/lib64. Python normally doesn't support this. It only has a prefix and an exec_prefix, but those only allow to do things like prefix=/usr and exec_prefix=/usr64, not changing the lib/ part in /usr/lib/. Thanks. On Tue, Nov 3, 2009 at 11:32 AM, M.-A. Lemburg m...@egenix.com wrote: Rami Chowdhury wrote: On Tue, 03 Nov 2009 11:15:39 -0800, Girish Venkatasubramanian giris...@gmail.com wrote: Hello, I have been using freeze.py on 32 bit linux distributions without a problem. But recently I tried to do the same on RHEL5 x86_64 and ran into some issues. 1) When I ran the script, I got Error: needed directory /usr/lib/python2.4/config not found I don't know anything about freeze.py but on 64-bit Red Hat distros (RHEL, Fedora, etc) it should be /usr/lib64/python2.4/config :-) This sounds a lot like a missing Python devel RPM. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ... http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ... http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Can I run a python program from within emacs?
On Nov 1, 10:15 am, rustom rustompm...@gmail.com wrote: On Nov 1, 7:20 pm, Robinson wanderingaen...@comcast.net wrote: I have also just started with both Aquamacs and Python so I ask for your patience as well. When I evaluate the buffer (C-c C-C) I don't see any response or output from my python program. Should another buffer open automatically? Should a terminal window open? thanks for your patience. Rugbeia Floreat Ubique On Mar 20, 3:09 pm, jmDesktop needin4mat... at gmail.com wrote: Hi, I'm trying to learn Python. I usingAquamacan emac implementation with mac os x. I have a program. If I go to the command prompt and type pythong myprog.py, it works. Can the program be run from within the editor or is that not how development is done? There are two python modes -- python.el and python-mode.el Default with emacs is python.el, what comes from/with python is python- mode.el (needs a download and a couple of lines of setup seehttp://www.emacswiki.org/emacs/PythonMode). I recommend python-mode. The key-bindings are different --C-c ! to start interpreter followed by C-c C-c to exec a file. Perfect! Many thanks... -- http://mail.python.org/mailman/listinfo/python-list
Re: self.__dict__ tricks
Simon Brunning wrote: 2009/11/1 Steven D'Aprano st...@remove-this-cybersource.com.au: The only stupid question is the one you are afraid to ask. I was once asked, and I quote exactly, are there any fish in the Atlantic sea? That's pretty stupid. ;-) Are there any fish in the Dead Sea? ~Ethan~ -- http://mail.python.org/mailman/listinfo/python-list
Re: Calendar Problem
MichaB Klich wrote: Dnia wtorek 03 listopada 2009 o 20:50:10 Victor Subervi napisał(a): Hi; I have the following: import calendar, datetime myCal =alendar.calendar(6) today =atetime.date.today() day =oday.day mo =oday.month yr =oday.year month =yCal.monthdayscalendar(yr, mo) The last line throws errors no matter how I try and tweak it. The current incarnation complains about myCal being a string. What do? TIA, Victor You should use myCal =calendar.Calendar(6) This creates calendar.Calendar object. Right. But I wanted to tell the OP what to do with an error like this. You should post the actual error traceback, and tell us what version of Python you're using: Traceback (most recent call last): File M:\Programming\Python\sources\dummy\stuff2.py, line 15, in module month = myCal.monthdayscalendar(yr, mo) AttributeError: 'str' object has no attribute 'monthdayscalendar' Now, since it says that myCal is a 'str' object, the next thing you should do is look at the value. I get an actual printable calendar for a year. So clearly, it's not the Calendar object you were looking for. So you need to change from the calendar() function to the Calendar() constructor. DaveA -- http://mail.python.org/mailman/listinfo/python-list
continuous return?
I'm trying to write something related to IRC. The thing is, I have one thread receiving and another sending. But, how can I keep the caller of the recv() function informed about what was last received so that it can all be printed out. But, I no idea how I can accomplish this. I was thinking about getting one variable that was constantly updated with the latest line that was recved and that the variable would be a member of the class so other functions/classes can access it -- http://mail.python.org/mailman/listinfo/python-list
Re: Freezing python files into executables
Rami Chowdhury wrote: On Tue, 03 Nov 2009 11:15:39 -0800, Girish Venkatasubramanian giris...@gmail.com wrote: Hello, I have been using freeze.py on 32 bit linux distributions without a problem. But recently I tried to do the same on RHEL5 x86_64 and ran into some issues. 1) When I ran the script, I got Error: needed directory /usr/lib/python2.4/config not found I don't know anything about freeze.py but on 64-bit Red Hat distros (RHEL, Fedora, etc) it should be /usr/lib64/python2.4/config :-) This sounds a lot like a missing Python devel RPM. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 03 2009) Python/Zope Consulting and Support ...http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ...http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- http://mail.python.org/mailman/listinfo/python-list
Re: comparing alternatives to py2exe
Recently I put together this incomplete comparison chart in an attempt to choose between the different alternatives to py2exe: http://spreadsheets.google.com/pub?key=tZ42hjaRunvkObFq0bKxVdgoutput=html ...snip... Are there major things I'm missing or misunderstanding? A quick note - although I haven't tried it out, the latest version of bbfreeze claims to support OSX. Ryan -- Ryan Kelly http://www.rfk.id.au | This message is digitally signed. Please visit r...@rfk.id.au| http://www.rfk.id.au/ramblings/gpg/ for details signature.asc Description: This is a digitally signed message part -- http://mail.python.org/mailman/listinfo/python-list
Re: import bug
En Tue, 03 Nov 2009 12:29:10 -0300, Ask Solem askso...@gmail.com escribió: If you have a module named myapp.django, and someone writes a cool library called django that you want to use, you can't use it unless you rename your local django module. file myapp/django.py: from django.utils.functional import curry ImportError: No module named utils.functional At least that's what I get, maybe there is some workaround, some way to say this is an absolute path? Yes, that's exactly the way to solve it. Either move on to Python 3, or use: from __future__ import absolute_import When absolute imports are in effect, and assuming your code is inside a package, then neither import re nor from django.utils.functional import curry are affected by your own module names, because those statements imply an absolute import (absolute means that the module is searched along sys.path). The only way to import a local file re.py is using from .re import something; the leading dot means it's a relative import (relative means that the module is searched in a single directory: the current package directory and its parents, depending on how many dots are specified) -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Freezing python files into executables
Hi Rami, Thanks for pointing this out. I did see that point - but apart from installing python-devel (which has created and populated /usr/lib64/python2.4/...) I am not sure what I should do - is there some setting in python where I can ask it to look at lib64 instead of lib? Thanks. On Tue, Nov 3, 2009 at 11:21 AM, Rami Chowdhury rami.chowdh...@gmail.com wrote: On Tue, 03 Nov 2009 11:15:39 -0800, Girish Venkatasubramanian giris...@gmail.com wrote: Hello, I have been using freeze.py on 32 bit linux distributions without a problem. But recently I tried to do the same on RHEL5 x86_64 and ran into some issues. 1) When I ran the script, I got Error: needed directory /usr/lib/python2.4/config not found I don't know anything about freeze.py but on 64-bit Red Hat distros (RHEL, Fedora, etc) it should be /usr/lib64/python2.4/config :-) -- Rami Chowdhury Never attribute to malice that which can be attributed to stupidity -- Hanlon's Razor 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD) -- http://mail.python.org/mailman/listinfo/python-list
Re: continuous return?
En Wed, 04 Nov 2009 00:20:05 -0300, Someone Something fordhai...@gmail.com escribió: I'm trying to write something related to IRC. The thing is, I have one thread receiving and another sending. But, how can I keep the caller of the recv() function informed about what was last received so that it can all be printed out. But, I no idea how I can accomplish this. I was thinking about getting one variable that was constantly updated with the latest line that was recved and that the variable would be a member of the class so other functions/classes can access it I don't completely understand your scenario, but since you say you have several threads, a common way to communicate between them is to use a Queue object. Let the receiver thread put() lines into the queue, and the processing thread get() them and do some work. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
unittest setup
Maybe I'm doing something wrong here, definitely not the most experienced unit tester. I've got a class, in the constructor it loads a CSV file from disc. I'd like only 1 instance of the class to be instantiated. However, when running multiple unit tests, multiple instances of the class are created. What's the best way for me to avoid this? It takes about a few seconds to load the CSV file. -- Jonathan Haddad http://www.rustyrazorblade.com -- http://mail.python.org/mailman/listinfo/python-list
Re: elementtree XML() unicode
On Nov 3, 2009, at 7:06 PM, Gabriel Genellina wrote: En Tue, 03 Nov 2009 23:06:58 -0300, Kee Nethery k...@kagi.com escribió: If there was a place in the official docs for me to append these nuggets of information to the sections for xml.etree.ElementTree.XML(text) and xml.etree.ElementTree.dump(elem) I would absolutely do so. http://bugs.python.org/ applies to documentation too. I've submitted documentation bugs in the past and no action was taken on them, the bugs were closed. I'm guessing that information that everyone knows not being in the documentation is not a bug. It's my fault I'm a newbie and I accept that. Thanks to you two for helping me get past this block. Kee -- http://mail.python.org/mailman/listinfo/python-list
Re: unittest setup
En Wed, 04 Nov 2009 01:02:24 -0300, Jonathan Haddad j...@jonhaddad.com escribió: I've got a class, in the constructor it loads a CSV file from disc. I'd like only 1 instance of the class to be instantiated. However, when running multiple unit tests, multiple instances of the class are created. What's the best way for me to avoid this? It takes about a few seconds to load the CSV file. Use a factory function: _instance = None def createFoo(parameters): if _instance is None: _instance = Foo(parameters) return _instance and replace all occurrences of Foo(parameters) with createFoo(parameters). For new-style classes, you may override the __new__ method instead. Perhaps I didn't understand your problem correctly because this is unrelated to unit testing... -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: substituting list comprehensions for map()
Steven D'Aprano wrote: On Tue, 03 Nov 2009 10:22:28 -0500, J Kenneth King wrote: Adding in the loop construct and name bindings doesn't enhance my understanding of what a dot-product is. I don't need to see the loop construct at all in this case. A dot product is simply the multiplication of each element in a vector sequence. What you need is to define a function dot-product, and not hijack the name for a local value. Then the function's implementation is irrelevant to you: it could use a list comp, or could use map, it could use a for- loop, a while loop, recursion, or black magic: scalar = dot_product(vec1, vec2) Or use the appropriate libraries: from numpy import dot scalar = dot(vec1, vec2) -- Robert Kern I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth. -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
