Re: class explorer for automating IE
John wrote: > Is there an analogue of IE Mechanize in python? http://www.google.com/search?q=python%20mechanize&btnI=I%27m+Feeling+Lucky -- http://mail.python.org/mailman/listinfo/python-list
Re: Is any python like linux shell?
Frank Potter wrote: > I learned some python in windows. > And now I've turned to linux. > I read a book and it teaches how to write shell script with bash, > but I don't feel like the grammar of bash. > Since I know about python, > I want to get a linux shell which use python grammar. > I searched by google and I found pysh, which is not maintained any > more. > There's another script named pyshell, which is not likely what I'm > searching for. > So, will somebody please tell me if there are any python like shells > for linux? You could in principle use Python as a general-purpose interactive shell, but it wouldn't make much sense. Bash is more convenient for basic operations such as changing directories, listing directories, copying files, etc. For more advanced scripting, I use both bash and Python. I use bash typically as an executive for scripting Python programs. For example, I use bash for stepping through a list of directories and running a set of python programs in each directory. Sure, I could use Python for the whole thing, but simply starting programs and moving files around is more straightforward in bash than in Python. -- http://mail.python.org/mailman/listinfo/python-list
Re: class explorer for automating IE
Is there an analogue of IE Mechanize in python? http://search.cpan.org/src/ABELTJE/Win32-IE-Mechanize-0.009/README Thanks, --j On Jan 22, 1:48 am, "John" <[EMAIL PROTECTED]> wrote: > I found this class which was written in 2003. > > http://xper.org/wiki/seminar/InternetExplorerAutomation > > Is there a better/more complete version around that someone knows of. > > Thanks, > --j -- http://mail.python.org/mailman/listinfo/python-list
class explorer for automating IE
I found this class which was written in 2003. http://xper.org/wiki/seminar/InternetExplorerAutomation Is there a better/more complete version around that someone knows of. Thanks, --j -- http://mail.python.org/mailman/listinfo/python-list
Re: pylab, matplotlib ... roots function question
Schüle Daniel wrote: > Hello NG, > > given this call to roots funtion from pylab It's actually from numpy and numpy questions are best asked (and best answered!) on numpy-discussion. http://www.scipy.org/Mailing_Lists > In [342]: roots([0,2,2]) > Out[342]: array([-1.]) > > as far as I understand it [a0,a1,a2] stands for a0+a1*x+a2*x^2 > in the above case it yields 2x^2+2x = 2x(1+x) > and the roots are 0 and -1 > I am wondering why roots function gives me only the -1 No, it's the other way around. In [1]: from numpy import * In [2]: roots? Type: function Base Class: Namespace: Interactive File: /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy-1.0.2.dev3507-py2.5-macosx-10.4-i386.egg/numpy/lib/polynomial.py Definition: roots(p) Docstring: Return the roots of the polynomial coefficients in p. The values in the rank-1 array p are coefficients of a polynomial. If the length of p is n+1 then the polynomial is p[0] * x**n + p[1] * x**(n-1) + ... + p[n-1]*x + p[n] So you were really solving 2*x + 2 = 0, the single root of which is -1. > second try > > In [343]: roots([1,0,0]) > Out[343]: array([], dtype=float64) > > ok, as it should be No, that's actually wrong. What version of numpy are you using? With a recent SVN checkout of numpy, I get the correct answer: In [3]: roots([1,0,0]) Out[3]: array([ 0., 0.]) -- 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: Accessing class variables in staticmethods.
Sam wrote: > On 21 Jan 2007 12:49:17 -0800, Ramashish Baranwal > <[EMAIL PROTECTED]> wrote: > > class Base: > > staticvar = 'Base' > > > > @staticmethod > > def printname(): > > # this doesn't work > > # print staticvar > > # this does work but derived classes wouldn't behave as I want > > print Base.staticvar > > > > class Derived(Base): > > staticvar = 'Derived' > > > > Base.printname() # should print 'Base' > > Derived.printname() # should print 'Derived' > > > > Any idea on how to go about this? Also from a staticmethod how can I > > find out other attributes of the class (not objects)? Do static methods > > get some classinfo via some implicit argument(s)? > > No, staticmethods get told nothing about the class they're being > defined in. What you want is a classmethod, which gets passed the > class to work with. > > Using classmethods, your code becomes: > > #untested, bear in mind > class Base: > staticvar = 'Base' > > @classmethod > def printname(cls): > print cls.staticvar > > class Derived(Base): > staticvar = 'Derived' > > Base.printname() #prints 'Base' > Derived.printname() #prints 'Derived' > > Incidentally, you can also use cls.__name__ for this purpose, but I > guess that your actual motivation for this is more complicated than > class names. Thanks Sam, using classmethod works. You guessed it correctly, my actual motivation is more complicated but on the same line. -Ram -- http://mail.python.org/mailman/listinfo/python-list
Re: Is any python like linux shell?
Frank Potter wrote: > I learned some python in windows. > And now I've turned to linux. > I read a book and it teaches how to write shell script with bash, > but I don't feel like the grammar of bash. > Since I know about python, > I want to get a linux shell which use python grammar. > I searched by google and I found pysh, which is not maintained any > more. > There's another script named pyshell, which is not likely what I'm > searching for. > So, will somebody please tell me if there are any python like shells > for linux? > Best is to do simple things (ls, mv, rm, cp) via bash or tcsh and to use python for things of any greater complexity (even slightly more complex). My strongest advice would be to let go of the idea of "shell scripting" altogether and begin to write programs built from libraries to solve your problems. The mere act of beginning to write a shell script (in, say, bash) will tie you to that "language", even when you realize your task was much more complex than you had originally imagined. It has happened to me time and time again. James -- http://mail.python.org/mailman/listinfo/python-list
Re: html + javascript automations = [mechanize + ?? ] or somethingelse?
I tried it, didnt work with the python25 distribution msi file that is on python.org But activestate python worked. Now I can open IE using COM. What I am trying to figure out is how to click an x,y coordinate on a page in IE automatically using COM. How about typing something automatically...Any ideas? Thanks, --j Gabriel Genellina wrote: > "John" <[EMAIL PROTECTED]> escribió en el mensaje > news:[EMAIL PROTECTED] > > > My python2.5 installation on windows did not come with "win32com". > > How do I install/get this module for windows? > > Look for the pywin32 package at sourceforge.net > > -- > Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Is any python like linux shell?
Paddy wrote: > George Sakkis wrote: > > >>Frank Potter wrote: >> >> >>>I learned some python in windows. >>>And now I've turned to linux. >>>I read a book and it teaches how to write shell script with bash, >>>but I don't feel like the grammar of bash. >>>Since I know about python, >>>I want to get a linux shell which use python grammar. >>>I searched by google and I found pysh, which is not maintained any >>>more. >>>There's another script named pyshell, which is not likely what I'm >>>searching for. >>>So, will somebody please tell me if there are any python like shells >>>for linux? >> >>IPython is actually more than a simple shell. Give it a try: >>http://ipython.scipy.org/. >> >>George > > > Frank, > IPython is great, but it is not a replacement for a shell like bash. If > you have a Linux system then you still need to know the rudiments of > bash Or better yet, csh. ;) James -- http://mail.python.org/mailman/listinfo/python-list
Re: Help with 'popen'
stephen_b wrote:
> Can someone let me know why this won't work? Thanks.
>
>
from os import popen
popen('export asdfasdf=hello').read()
>
> ''
>
popen('echo $asdfasdf').read()
>
> '\n'
>
> Thanks.
>
> Stephen
>
Python starts a new shell for each command, so your environment variable
is lost. You probably want this, which makes the variable "permanent".
py> import os
py> os.environ['asdfasdf'] = 'hello'
py> os.popen('echo $asdfasdf').read()
'hello\n'
James
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Re: html + javascript automations = [mechanize + ?? ] or somethingelse?
"John" <[EMAIL PROTECTED]> escribió en el mensaje news:[EMAIL PROTECTED] > My python2.5 installation on windows did not come with "win32com". > How do I install/get this module for windows? Look for the pywin32 package at sourceforge.net -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Xah's Edu Corner: Introduction to 3D Graphics Programing
Xah Lee wrote in 2006-12-22: > Of Interest: > > Introduction to 3D Graphics Programing > http://xahlee.org/3d/index.html Folks, i have expanded my tutorial to several pages in the past nearly two months, and thank you very much for those who have given encouragement. I had plans to write pages that actually contained Python or Perl and elisp code to demonstrate the mingled use of common languages with POV-RAY and other tools for doing algorithmic mathematical art... However, i'm posting now for one in-credible discovery that amazed me, and believe it is a revolutionary both with respect to technology, as well as its social impact. Following is my brief introduction. The web version is at: Introduction to Second Life http://xahlee.org/sl/sl.html --- Introduction to Second Life Xah Lee, 2007-01-09 above: A screenshot of a location in Second Life. This place is called “The Future”, it is a place built by Henry Segerman ↗ built. Second Life is a online virtual world with 2 million accounts as of 2006-12, and reportedly 10 thousand users logged in at any moment. Basically, you operate a software that is a 3D world much like 3D games, but everything in the “game” is built by users, and you can interact with other users, including buying and selling virtual land with real money. What people do inside Second Life is entirely up to them (as in real life). And, as it happens, what people do mostly in Second Life are pretty much what people do in real life. The major activities are: sex, shopping, socializing, dancing. My mathematician friend Henry Segerman introduced me to 2nd life. (also because it appeared in Time Mag in 2006-12.) Henry has a 2nd life page that contains many math objects made in Second Life: http://www.stanford.edu/~segerman/2ndlife.html. Part of my interest in Second Life is to build geometric models. (See Introduction to 3D Graphics Programing) I have for the past couple years sought for a software platform/system where i can build 3D objects, with abilities to do interactive adjustment (such as moving a slide to change a surface's parameter), dynamic rotation (viewing from different angles), animations (such as morphing that shows geometric processes), and most of all, walk-thru in it as if it is a building. As far as my experiences goes, no software platform for 3D graphics are close to the ideal of what i need to do. They lack one feature or the other, or otherwise requires the programer to be a specialist with years of dedication in learning the tool. For example, Mathematica↗ has great collection of math functions but no dynamic graphics. POV-RAY↗ and 3D-modelers like AutoCAD↗ can do great in building 3D objects but they are not designed for interactivity, animations, or walk-thru. Java the programming language↗ allows one to write applets that does rotation and interactive manipulation but programing in Java is extremely unnecessarily complex and yet it is still not possible to do walk-thrus. The one class of platform that does all these, is 3D game engines. But alas, they take a dedicated game programing specialist to be able to use it. Second Life changed all this. (Note: Just for completness, my requirement for a 3D-graphics programing software system is this: • easy to use for average programers or scientists. • Easy to build geometry models, such as basic shapes like spheres and blocks, as well as surfaces or meshes of triangles. • designed for interactivity. That is, the programer can easily build buttons and sliders that changes parameters and have the object reflect these changes visually right away. • the user can easily change viewing angles or rotate the object. • The programer can easily do animations. For example, morph a sphere into a cube, or a bunch of spheres flying in space as a swarm of flies. • The ability to do walk-thru (or fly-thru). For example, if i build a fancy 3D-maze or architecture, i should be able to — say — become a ant, and walk inside the object, so as to view the object from inside and as well as getting the real experience of perceiving such a building. (Before my discover of Second Life, the platform that i was considering nearly ideal and preparing to learn, are VPython↗ and Macromedia Flash↗ (i do still plan to learn these technologies) )) Second Life is not just the answer to my mathematical fantasies, but because of its Real-World nature, being run and build by real people, and with scarily real money market of the virtual dollars it uses, is nothing but a technological revolution with great social impact. It is essentially the virtual-3D-world-wide-web dream of VRML↗ envisioned around 1995. Anshe Chung↗ is famouly known for being the first to become a (real world) millionaire by selling entirely virtual items and virtual services inside Second Life. For a encyclopedic introduction, see: Second Life↗ Here are some articles about Second Life. (note that there are a lot linked at the bottom of the Wikipedia article.) * Time
Re: selective logger disable/enable
Gary Jefferson wrote:
> I am still a bit confused about Filters, though. It seems they are a
> bit of an anomoly in the hierarchical view of loggers that the API
> supports elsewhere, i.e., filters don't seem to inherit... Or am I
> missing something again? Here's a quick example:
>
> import logging
>
> log1 = logging.getLogger("top")
> log2 = logging.getLogger("top.network")
> log3 = logging.getLogger("top.network.tcp")
> log4 = logging.getLogger("top.network.http")
> log5 = logging.getLogger("top.config")
> log6 = logging.getLogger("top.config.file")
>
> logging.basicConfig(level=logging.DEBUG,
> format='%(asctime)s %(levelname)s %(message)s')
>
> filter = logging.Filter("top.network")
> log1.addFilter(filter) # only affects log1, do this for each of log2-7
> too?
>
> log1.debug("I'm top")
> log2.debug("I'm top.network")
> log3.debug("I'm top.network.tcp")
> log4.debug("I'm top.network.http")
> log5.debug("I'm top.config")
> log6.debug("I'm top.config.file")
>
>
> This is only for the binary case (and I think if I ignore the binary
> case and filters altogether as you suggested), but it really would be
> nice to be able to squelch /all/ output from loggers that belong to
> certain parts of the namespace by using a filter as above (which I
> can't get to work).
>
> Perhaps if I set up a basicConfig with a loglevel of nothing, I can get
> this to approximate squelching of everything but that which I
> explicitly setLevel (which does inherit properly).
>
> In other words, the addFilter/removeFilter part of the API seems rather
> impotent if it can't be inherited in the logging namespaces. In fact,
> I can't really figure out a use case where I could possibly want to use
> it without it inheriting. Obviously I'm missing something. I'm sure
> I've consumed more attention that I deserve already in this thread,
> but, do you have any pointers which can enlighten me as to how to
> effectively use addFilter/removeFilter?
I don't really think there's a problem with the logging API - it went
through a fair amount of peer review on python-dev before making it
into the Python distribution. You need to use what's there rather than
shoehorn it into how you think it ought to be. Filters are for more
esoteric requirements - you can see some examples of filters in the old
(out of date) standalone distribution at
http://www.red-dove.com/python_logging.html (download and examine some
of the test scripts). Loggers aren't binary - levels are there to be
used. Most people get by with judicious use of levels, using Filters on
loggers only for unusual cases. Since Filters are only meant to be used
in unusual situations, there is no need to think about inheriting them.
Filters can be set on Handlers so that even if Loggers log the events,
they don't go to any output if filtered out at the handlers for that
output.
BTW I would also advise reading PEP-282 to understand more about the
logging approach.
Best regards,
Vinay Sajip
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Re: html + javascript automations = [mechanize + ?? ] or something else?
My python2.5 installation on windows did not come with "win32com".
How do I install/get this module for windows?
Thanks,
--j
Duncan Booth wrote:
> "John" <[EMAIL PROTECTED]> wrote:
>
> > Is there a way
> > to control a browser like firefox from python itself? How about IE?
>
> IE is easy enough to control and you have full access to the DOM:
>
> >>> import win32com
> >>> win32com.client.gencache.EnsureModule('{EAB22AC0-30C1-11CF-A7EB-
> C05BAE0B}', 0, 1, 1)
> 'C:\Python25\lib\site-packages\win32com\gen_py\EAB22AC0-30C1-11CF-A7EB-
> C05BAE0Bx0x1x1.py'>
> >>> IE = win32com.client.DispatchEx('InternetExplorer.Application.1')
> >>> dir(IE)
> ['CLSID', 'ClientToWindow', 'ExecWB', 'GetProperty', 'GoBack', 'GoForward',
> 'GoHome', 'GoSearch', 'Navigate', 'Navigate2', 'PutProperty',
> 'QueryStatusWB', 'Quit', 'Refresh', 'Refresh2', 'ShowBrowserBar', 'Stop',
> '_ApplyTypes_', '__call__', '__cmp__', '__doc__', '__getattr__',
> '__init__', '__int__', '__module__', '__repr__', '__setattr__', '__str__',
> '__unicode__', '_get_good_object_', '_get_good_single_object_', '_oleobj_',
> '_prop_map_get_', '_prop_map_put_', 'coclass_clsid']
> >>> IE.Visible=True
> >>> IE.Navigate("http://plone.org";)
> >>> while IE.Busy: pass
>
> >>> print IE.Document.getElementById("portlet-news").innerHTML
> href="feed://plone.org/news/newslisting/RSS">http://plone.org/rss.gif";> href="http://plone.org/news";>News
>
> ... and so on ...
>
>
> See
> http://msdn.microsoft.com/workshop/browser/webbrowser/reference/objects/int
> ernetexplorer.asp
> for the documentation.
--
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Re: Reading Fortran Data
Wow! Thanks for the help everyone. I will look into each of your comments in more detail in the morning, but I'll mention a few things I guess. The first is, the list-directed output was not necesarily my choice as some of the code is also used by my supervisor (and her colleagues) and I had to keep the IO similar. However, for "non-legacy" codes (even though is was upgraded to Fortran90), I can ensure you that I will employ a more portable format. Also, I am very interested in the Scientific.IO module mentioned and will look into it further along with f2py. Once again, I thank all of you for your replies, I think I even learnt a few things about Fortran here too Cheers, t. -- http://mail.python.org/mailman/listinfo/python-list
Re: pyparsing Combine without merging sub-expressions
Paul McGuire wrote:
> Steven Bethard wrote:
>> Within a larger pyparsing grammar, I have something that looks like::
>>
>> wsj/00/wsj_0003.mrg
>>
>> When parsing this, I'd like to keep around both the full string, and the
>> AAA_ substring of it, so I'd like something like::
>>
>> >>> foo.parseString('wsj/00/wsj_0003.mrg')
>> (['wsj/00/wsj_0003.mrg', 'wsj_0003'], {})
>>
>> How do I go about this? I was using something like::
>>
>> >>> digits = pp.Word(pp.nums)
>> >>> alphas = pp.Word(pp.alphas)
>> >>> wsj_name = pp.Combine(alphas + '_' + digits)
>> >>> wsj_path = pp.Combine(alphas + '/' + digits + '/' + wsj_name +
>> ... '.mrg')
[snip]
> BUT, if all you want is to be able to easily *access*
> that sub-field, then why not give it a results name? Like this:
>
> wsj_name = pp.Combine(alphas + '_' + digits).setResultsName("name")
>
> Leave everything else the same, but now you can access the name field
> independently from the rest of the combined tokens.
Works great. Thanks!
STeVe
--
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Re: pyparsing Combine without merging sub-expressions
Dennis Lee Bieber wrote:
> On Sat, 20 Jan 2007 13:49:52 -0700, Steven Bethard
> <[EMAIL PROTECTED]> declaimed the following in comp.lang.python:
>
>> Within a larger pyparsing grammar, I have something that looks like::
>>
>> wsj/00/wsj_0003.mrg
>>
>> When parsing this, I'd like to keep around both the full string, and the
>> AAA_ substring of it, so I'd like something like::
>>
>> >>> foo.parseString('wsj/00/wsj_0003.mrg')
>> (['wsj/00/wsj_0003.mrg', 'wsj_0003'], {})
>>
> If working file name/paths, why not use the functions in os.path?
Two reasons. First, as I mentioned, this is within a larger pyparsing
grammar so it's not as easy to switch back and forth between the two.
Second, I do want to do some data validation (e.g. the name of the file
needs to be in a particular format) so I either need to post-process the
os.path approach or just do it in pyparsing.
>> But that then allows whitespace between the pieces of the path, which
>> there shouldn't be::
>>
> If you didn't have whitespace coming in, there shouldn't be any
> going out. If you do, you likely have malformed data and probably should
> detect it earlier...
Well that's the intention of using pyparsing here. With a proper
grammar, pyparsing can detect the malformed data for me and throw an error.
STeVe
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Re: html + javascript automations = [mechanize + ?? ] or something else?
I tried to install pamie (but I have mostly used python on cygwin on windows). In the section " What will you need to run PAMIE", it says I will need "Mark Hammonds Win32 All" which I can not find. Can anyone tell me how do I install PAMIE? Do I need python for windows that is different from cygwin's python? Thanks, --j ina wrote: > John wrote: > > I have to write a spyder for a webpage that uses html + javascript. I > > had it written using mechanize > > but the authors of the webpage now use a lot of javascript. Mechanize > > can no longer do the job. > > Does anyone know how I could automate my spyder to understand > > javascript? Is there a way > > to control a browser like firefox from python itself? How about IE? > > That way, we do not have > > to go thru something like mechanize? > > > > Thanks in advance for your help/comments, > > --j > > You want pamie, iec or ishybrowser. Pamie is probably the best choice > since it gets patches and updates on a regular basis. > > http://pamie.sourceforge.net/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading Fortran Data
Beliavsky wrote: > Carl Banks wrote: > > > > > > A Fortran > > > list-directed write can print results in an almost arbitrary format, > > > depending on the compiler. Many compilers will separate integers by > > > several spaces, not just one, and they could use commas instead of > > > spaces if they wanted. > > > > 1. Hardly any compiler will produce a line of two integers, or reals, > > that another compiler couldn't read back. > > Yes, but for more than three numbers, the statement is wrong. Intel > Fortran prints four double precision random n > as > > 0.555891433847495 0.591161642339424 0.888434673900224 > > 0.487293557925127 > > but g95 prints them on a single line. Did you try to use one compiler's program's output as the other's input? How did it work? > I advise against using > list-directed Fortran writes to create files that other programs will > read, and I think most experienced Fortran programmers would agree. It's been awhile, but I'd consider myself an experienced Fortran programner. I don't really agree. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: Is any python like linux shell?
George Sakkis wrote: > Frank Potter wrote: > > > I learned some python in windows. > > And now I've turned to linux. > > I read a book and it teaches how to write shell script with bash, > > but I don't feel like the grammar of bash. > > Since I know about python, > > I want to get a linux shell which use python grammar. > > I searched by google and I found pysh, which is not maintained any > > more. > > There's another script named pyshell, which is not likely what I'm > > searching for. > > So, will somebody please tell me if there are any python like shells > > for linux? > > IPython is actually more than a simple shell. Give it a try: > http://ipython.scipy.org/. > > George Frank, IPython is great, but it is not a replacement for a shell like bash. If you have a Linux system then you still need to know the rudiments of bash - Paddy. -- http://mail.python.org/mailman/listinfo/python-list
Re: selective logger disable/enable
Vinay Sajip wrote:
>
> I don't know enough about your target environment and application to
> necessarily give you the best advice, but I'll make some general
> comments which I hope are useful. You seem to be thinking that loggers
> are binary - i.e. you turn them on or off. But they can be controlled
> more finely than that; you should be able to get the effect that you
> want by using the different logging levels available judiciously, as
> well as using the fact that loggers inhabit a named hierarchy. Note
> that loggers, by default, inherit the level of the first ancestor
> logger which has an explicitly set level (by ancestor, I mean in the
> name hierarchy). The root logger's default level is WARNING, so by
> default all loggers will work at this level. [N.B. You can also set
> levels for individual handlers, e.g. to ensure that only CRITICAL
> conditions are emailed to a specified email address using SMTPHandler,
> or that ERROR conditions and above are written to file but not to
> console.]
>
> So, for your networking scenario, let's suppose you do the following:
> Have all network loggers live in the hierarchy namespace below
> "network" (e.g. "network", "network.tcp", "network.http" etc.). By
> default, all of these will only log events of severity WARNING and
> above. Also, suppose you log events in your application code, which are
> sometimes but not always of interest, at level DEBUG or level INFO.
> Then, these events will never show up in the logging output, since they
> are below WARNING in severity. Subsequently, if you want to turn on
> logging verbosity for the network code only, you can arrange, via a
> command-line switch or environment variable or configuration file, to
> do
>
> logging.getLogger("network").setLevel(logging.DEBUG)
>
> whereupon you will start seeing events from the networking code at
> severity DEBUG and INFO. This will affect all loggers in the "network"
> hierarchy whose levels you have not explicitly set (so that they will
> get the effective level of the first ancestor which has a level
> explicitly set - the logger named "network").
>
> If all you are interested in is turning on verbosity based on different
> event severities (levels), you should not need to use or set Filters.
> Filters are for use only when levels don't meet your use case
> requirements.
>
> Best regards,
>
> Vinay Sajip
Vinay, okay, I think what you described will work out for me -- thank
you very much for the explanation.
I am still a bit confused about Filters, though. It seems they are a
bit of an anomoly in the hierarchical view of loggers that the API
supports elsewhere, i.e., filters don't seem to inherit... Or am I
missing something again? Here's a quick example:
import logging
log1 = logging.getLogger("top")
log2 = logging.getLogger("top.network")
log3 = logging.getLogger("top.network.tcp")
log4 = logging.getLogger("top.network.http")
log5 = logging.getLogger("top.config")
log6 = logging.getLogger("top.config.file")
logging.basicConfig(level=logging.DEBUG,
format='%(asctime)s %(levelname)s %(message)s')
filter = logging.Filter("top.network")
log1.addFilter(filter) # only affects log1, do this for each of log2-7
too?
log1.debug("I'm top")
log2.debug("I'm top.network")
log3.debug("I'm top.network.tcp")
log4.debug("I'm top.network.http")
log5.debug("I'm top.config")
log6.debug("I'm top.config.file")
This is only for the binary case (and I think if I ignore the binary
case and filters altogether as you suggested), but it really would be
nice to be able to squelch /all/ output from loggers that belong to
certain parts of the namespace by using a filter as above (which I
can't get to work).
Perhaps if I set up a basicConfig with a loglevel of nothing, I can get
this to approximate squelching of everything but that which I
explicitly setLevel (which does inherit properly).
In other words, the addFilter/removeFilter part of the API seems rather
impotent if it can't be inherited in the logging namespaces. In fact,
I can't really figure out a use case where I could possibly want to use
it without it inheriting. Obviously I'm missing something. I'm sure
I've consumed more attention that I deserve already in this thread,
but, do you have any pointers which can enlighten me as to how to
effectively use addFilter/removeFilter?
many thanks,
Gary
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Help with 'popen'
Can someone let me know why this won't work? Thanks.
>>> from os import popen
>>> popen('export asdfasdf=hello').read()
''
>>> popen('echo $asdfasdf').read()
'\n'
Thanks.
Stephen
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Re: Reading Fortran Data
Carl Banks wrote: > > A Fortran > > list-directed write can print results in an almost arbitrary format, > > depending on the compiler. Many compilers will separate integers by > > several spaces, not just one, and they could use commas instead of > > spaces if they wanted. > > 1. Hardly any compiler will produce a line of two integers, or reals, > that another compiler couldn't read back. Yes, but for more than three numbers, the statement is wrong. Intel Fortran prints four double precision random n as 0.555891433847495 0.591161642339424 0.888434673900224 0.487293557925127 but g95 prints them on a single line. I advise against using list-directed Fortran writes to create files that other programs will read, and I think most experienced Fortran programmers would agree. -- http://mail.python.org/mailman/listinfo/python-list
Re: PyMeld for html templates?
I'm trying to get PyMeld happening but I'm a bit stumped as to how to make it work with mod_python. The pymeld docs show examples only for the Python command line interpreter and show using the print statement to output stuff. But using mod_python.apache, I think you need to use req.write(something) format. And of course, this fails when you feed it output from Meld. Any tips? Sean On Jan 20, 2007, at 6:18 AM, Richie Hindle wrote: > [Sean] >> I wonder if anyone has any thoughts on PyMeld as a template >> system for churning out general websites? > > I'm doing that (but then I would be wouldn't I? 8-) > http://www.mandant.net is an example - the content of each page comes > from a file containing just the content, the layout and sidebar are > defined in a template HTML file, and the navigation is built by a > Python script. All that is pulled together using PyMeld into a set of > HTML files and deployed to the web server (there's no need to it on > the > fly for that site, but you certainly could). > >> I want for a URI request to mysite.com/info >> to pull in a layout.html template which will in turn be populated by >> the info.html template. [...] how about PyMeld, any ideas on how >> to do it or whether it will even work as I've described? > > You'd do something like this: > > from PyMeld import Meld > > LAYOUT = """The Title > The page information goes here. > The real title > Here is the info, which would in the real world > be read from a file.""" > > page = Meld(LAYOUT) > info = Meld(INFO) > page.title = info.title._content > page.info = info.info._content > print page > > Is that the sort of thing you had in mind? > > -- > Richie Hindle > [EMAIL PROTECTED] > > -- > http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading Fortran Data
Beliavsky wrote: > Carl Banks wrote: > > > > > > WRITE(90,*) nfault,npoint > > > > Fortran writes this as two arbitrary integers separated by a space. > > I wrote a paragraph in my reply explaining why this is wrong. It's a safe assumption for a line of two integers. It might not exactly produce what a Fortran program would, but it would work in a read statement. > A Fortran > list-directed write can print results in an almost arbitrary format, > depending on the compiler. Many compilers will separate integers by > several spaces, not just one, and they could use commas instead of > spaces if they wanted. 1. Hardly any compiler will produce a line of two integers, or reals, that another compiler couldn't read back. 2. The number of spaces separating the numbers isn't important when reading back free-form data. 3. Fear that a Fortran compiler might use commas or wrap lines at ten columns or whatever, because it's not based on a standard, is misguided paranoia. > The number of items printed before a new line is > started is also compiler-dependent. For more control, one uses a > formatted write, for example > > write (90,"(2(1x,i0))") nfault,npoint I think it's just more work to guard against something isn't very relevant in practice. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: instancemethod
never mind i think i need some sleep lol i did the exact opposite this time .rowcount() -> .rowcount -- http://mail.python.org/mailman/listinfo/python-list
Re: instancemethod
import MySQLdb
class Db:
_db=-1
_cursor=-1
rowcount=-1
def __init__(self,server,user,password,database):
self._db=MySQLdb.connect(server , user , password , database)
self._cursor=self._db.cursor()
def excecute(self,cmd):
self._cursor.execute(cmd)
self._db.commit()
self.rowcount=int(self._cursor.rowcount())
def fetchone(self):
return self._cursor.fetchone()
def close(self):
self._cursor.close()
self._db.close()
if __name__ == '__main__':
gert=Db('localhost','root','***','gert')
gert.excecute('select * from person')
for x in range(0,gert.rowcount):
print gert.fetchone()
gert.close()
Traceback (most recent call last):
File "Desktop/svn/db/Py/db.py", line 28, in
gert.excecute('select * from person')
File "Desktop/svn/db/Py/db.py", line 17, in excecute
self.rowcount=int(self._cursor.rowcount())
TypeError: 'long' object is not callable
I guess i did something wrong again ? :)
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pylab, matplotlib ... roots function question
Hello NG, given this call to roots funtion from pylab In [342]: roots([0,2,2]) Out[342]: array([-1.]) as far as I understand it [a0,a1,a2] stands for a0+a1*x+a2*x^2 in the above case it yields 2x^2+2x = 2x(1+x) and the roots are 0 and -1 I am wondering why roots function gives me only the -1 second try In [343]: roots([1,0,0]) Out[343]: array([], dtype=float64) ok, as it should be In [344]: roots([0,0,1]) Out[344]: array([], dtype=float64) here again, 0 is the root of x^2 Do I miss something important? Regards, Daniel -- http://mail.python.org/mailman/listinfo/python-list
Re: instancemethod
On 1/22/07, Gert Cuykens <[EMAIL PROTECTED]> wrote:
> On 1/22/07, Gabriel Genellina <[EMAIL PROTECTED]> wrote:
> > "Gert Cuykens" <[EMAIL PROTECTED]> escribió en el mensaje
> > news:[EMAIL PROTECTED]
> >
> > > class Db:
> > >
> > >_db=-1
> > >_cursor=-1
> > >
> > >@classmethod
> > >def __init__(self,server,user,password,database):
> > >self._db=MySQLdb.connect(server , user , password , database)
> > >self._cursor=self._db.cursor()
> > >
> > >@classmethod
> > >def excecute(self,cmd):
> > >self._cursor.execute(cmd)
> > >self._db.commit()
> > >
> > >
> > > if __name__ == '__main__':
> > >gert=Db('localhost','root','**','gert')
> > >gert.excecute('select * from person')
> > >for x in range(0,gert.rowcount):
> > >print gert.fetchone()
> > >gert.close()
> >
> > Besides your specific question that was already answered, why are you using
> > classmethods at all?
> > You are constructing a Db instance and using it as if all were normal
> > instance methods... Just remove all those @classmethod declarations and use
> > it in a standard way.
> >
> > --
> > Gabriel Genellina
> >
> >
> > --
> > http://mail.python.org/mailman/listinfo/python-list
> >
>
> i thought @classmethod was the normal method ?
>
did some reading and i think i know why now :)
http://www.faqts.com/knowledge_base/view.phtml/aid/16824
python always seems to amaze me how other languages make a mess of
things that suppose to be simple
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Re: Reading Fortran Data
Carl Banks wrote: > > WRITE(90,*) nfault,npoint > > Fortran writes this as two arbitrary integers separated by a space. I wrote a paragraph in my reply explaining why this is wrong. A Fortran list-directed write can print results in an almost arbitrary format, depending on the compiler. Many compilers will separate integers by several spaces, not just one, and they could use commas instead of spaces if they wanted. The number of items printed before a new line is started is also compiler-dependent. For more control, one uses a formatted write, for example write (90,"(2(1x,i0))") nfault,npoint -- http://mail.python.org/mailman/listinfo/python-list
Re: instancemethod
On 1/22/07, Gabriel Genellina <[EMAIL PROTECTED]> wrote:
> "Gert Cuykens" <[EMAIL PROTECTED]> escribió en el mensaje
> news:[EMAIL PROTECTED]
>
> > class Db:
> >
> >_db=-1
> >_cursor=-1
> >
> >@classmethod
> >def __init__(self,server,user,password,database):
> >self._db=MySQLdb.connect(server , user , password , database)
> >self._cursor=self._db.cursor()
> >
> >@classmethod
> >def excecute(self,cmd):
> >self._cursor.execute(cmd)
> >self._db.commit()
> >
> >
> > if __name__ == '__main__':
> >gert=Db('localhost','root','**','gert')
> >gert.excecute('select * from person')
> >for x in range(0,gert.rowcount):
> >print gert.fetchone()
> >gert.close()
>
> Besides your specific question that was already answered, why are you using
> classmethods at all?
> You are constructing a Db instance and using it as if all were normal
> instance methods... Just remove all those @classmethod declarations and use
> it in a standard way.
>
> --
> Gabriel Genellina
>
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
i thought @classmethod was the normal method ?
--
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Re: Beginners Tutorial in PDF Format?
"W. Watson" <[EMAIL PROTECTED]> escribió en el mensaje news:[EMAIL PROTECTED] Robert Hicks wrote: > W. Watson wrote: >> I'd like to print a tutorial in one fell swoop, but it seems most on the >> various sites are page by page embedded descriptions in the page. Any >> available as a pdf? > > http://docs.python.org/download.html > > http://www.diveintopython.org/ > > Thanks, but the first url takes me to a web page that contains the > complete > tutorial. Does choosing pdf (USA) in the table download a file that > contains > all the documents on the list below and to the left? Try again. The first url goes to this page: Download Python 2.5 Documentation (19 September 2006): To download an archive containing all the documents for this version of Python in one of various formats [pdf included, you can choose between Letter/A4]. Below, it says "These documents are not available for download individually." -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Windows Editors
I prefer PyScripter too, but would like to know if I can have 'indentation guides' enabled like PythonWin allows. On 1/21/07, Stef Mientki <[EMAIL PROTECTED]> wrote: > I tried 2 of them, and only was stable enough: PyScripter > http://mmm-experts.com/Products.aspx?ProductID=4 -- http://mail.python.org/mailman/listinfo/python-list
Re: Beginners Tutorial in PDF Format?
Robert Hicks wrote: > W. Watson wrote: >> I'd like to print a tutorial in one fell swoop, but it seems most on the >> various sites are page by page embedded descriptions in the page. Any >> available as a pdf? >> >> Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA) >> (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) >>Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet >> >> Two laws Newton and Einstein didn't discover: >> 1. Time is money. >> 2. Matter will be damaged in direct proportion >> to its value. >> -- >> Web Page: > > http://docs.python.org/download.html > > http://www.diveintopython.org/ > > HTH > > Robert > Thanks, but the first url takes me to a web page that contains the complete tutorial. Does choosing pdf (USA) in the table download a file that contains all the documents on the list below and to the left? Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA) (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet Two laws Newton and Einstein didn't discover: 1. Time is money. 2. Matter will be damaged in direct proportion to its value. -- Web Page: -- http://mail.python.org/mailman/listinfo/python-list
Re: instancemethod
"Gert Cuykens" <[EMAIL PROTECTED]> escribió en el mensaje
news:[EMAIL PROTECTED]
> class Db:
>
>_db=-1
>_cursor=-1
>
>@classmethod
>def __init__(self,server,user,password,database):
>self._db=MySQLdb.connect(server , user , password , database)
>self._cursor=self._db.cursor()
>
>@classmethod
>def excecute(self,cmd):
>self._cursor.execute(cmd)
>self._db.commit()
>
>
> if __name__ == '__main__':
>gert=Db('localhost','root','**','gert')
>gert.excecute('select * from person')
>for x in range(0,gert.rowcount):
>print gert.fetchone()
>gert.close()
Besides your specific question that was already answered, why are you using
classmethods at all?
You are constructing a Db instance and using it as if all were normal
instance methods... Just remove all those @classmethod declarations and use
it in a standard way.
--
Gabriel Genellina
--
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Re: Python Windows Editors
[EMAIL PROTECTED] wrote: > W. Watson wrote: >> I downloaded python-2.5.msi and installed it. I believe its editor is IDE. I >> understand there's a Win editor called pythonwin. I believe it's in the >> download pywin32-210.win32-py2.5.exe, but I'm not sure if this exe file has >> just the editor or all of Python. Comments? If not how do I get the >> PythonWin editor by itself? >> >> BTW, one of the features I did not like of IDE is the limited file Print >> command. It puts everything in 16pt type, and gives no choice over what >> pages should be printed. Maybe there's an option? > > Print your files from Notepad, after all, they're just text files. > But IDLE has more usefull Formatting options. Thanks. Already did it, but used Word. I can get line numbers in that way. -- http://mail.python.org/mailman/listinfo/python-list
OpenOffice 2.0 UNO update Links; need help
I've got a ~100 page document I assemble from ~30 OOo .odt files with some search and replace functions. I then produce a PDF. So far so good. Now I need to get a barcode from our internal website and insert that. The barcode will vary based on some parameters. Our internal site provides a .jpg image (or .gif) based on those parameters. Can anyone provide a snippet or some pointers on how to do this. I've googled it to death and checked the OOo DevGuide to no avail. Either python or java solution is acceptable. --- The information contained in this message may be privileged and / or confidential and protected from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to this message and deleting the material from any computer. --- -- http://mail.python.org/mailman/listinfo/python-list
Re: Code reformater?
On Sun, 21 Jan 2007 14:15:46 +1100, Steven D'Aprano <[EMAIL PROTECTED]> wrote: >Still, it is better not to lose the indentation in the first place. Thanks for the tips. But it does happen when copy/pasting code from either a web page or an e-mail that TABs are messed up, which is not a problem with other languages, but is a problem with Python. Too bad. -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading Fortran Data
Tyler wrote:
> Hello All:
>
> After trying to find an open source alternative to Matlab (or IDL), I
> am currently getting acquainted with Python and, in particular SciPy,
> NumPy, and Matplotlib. While I await the delivery of Travis Oliphant's
> NumPy manual, I have a quick question (hopefully) regarding how to read
> in Fortran written data.
I think you made a good choice, if for no other reason than the fact
that Python and numpy absolutely rock when it comes to interfacing with
Fortran (and any C code that can be called by Fortran). I suggest
having a look at pyfort and/or f2py to see if they can be useful to
you. If your data files are temporary (that is, they only exist to
pass data from one program to another), you might not even need them.
For completeness, I'll answer how to write as well as read Fortran
data. It turns out that all of this can be done without numpy, but
there is one very convenient numpy function.
> The data files are not binary, but ASCII text files with no formatting
> and mixed data types (strings, integers, floats). For example, I have
> the following write statements in my Fortran code:
>
> I write the files as such:
> WRITE(90,'(A30)') fgeo_name
> WRITE(90,'(A30)') fmed_name
Fortran pads it's output when using a width field. A good way to do
this in Python is to use string formating with a given width. If
fgeo_name is a Python string, they you'd write something like this:
f.write("%-30s\n" % fgeo_name)
The negeative sign is to pad the name on the left, which is how Fortran
does it (by default, Python string formatting pads on the right). You
could also use the .ljust method of string objects:
f.write(fgeo_name.ljust(30) + "\n")
Don't forget the newline on the end.
> WRITE(90,*) nfault,npoint
Fortran writes this as two arbitrary integers separated by a space. To
do this in Python, use string formating. This also adds a space to the
beginning as most Fortran implementations seem to do.
f.write(" %d %d\n" % (nfault,npoint))
> WRITE(90,*) (xpt(n), n=1,npoint)
> WRITE(90,*) (ypt(n), n=1,npoint)
Now, an array. I think you'd be safest writing one value per line.
You would do that like this:
for x in xpt:
f.write(" %#g\n" % x)
The # sign is there to force the number to be formatted with a decimal
point. You'll probably want to tweak the format string in other ways
(to specify a precision, for instance).
> and,
>
> WRITE(10,'(A30)') fname
> DO i=1,nfault
> WRITE(10,*) dbn(i),dtn(i),xfwnt(i),yfwnt(i),xfent(i),yfent(i),&
> &slpvlS(i),slpvlD(i),slpvlT(i),segdp1(i)
> END DO
I'd write this as one number per line.
f.write("%-30s\n" % fname)
for i in range(nfault):
f.write(" %#g\n" % dbn[i])
f.write(" %#g\n" % dtn[i])
# and so on
If you know Python well, there are "more Pythonic" ways to do this, but
this is straightforward and works well enough. Now for the reading
part.
> I then respectively read them into Fortran as:
> READ(70,'(A30)') fgeo_name
> READ(70,'(A30)') fmed_name
Once you've opened a file, then:
fgeo_name = f.readline().strip()
fmed_name = f.readline().strip()
Note that this strips the padding off the name. If the first line of
the file is "ABC" followed by 27 spaces, the result will be "ABC" with
the spaces stripped.
> READ(70,*) nfault,npoint
Python doesn't have any built in input formating (a la READ in Fortran
or scanf in C), so one usually does this kind of thing by hand.
Fortunately, Python makes this quite easy. The following will do what
you want:
s = f.readline().split()
nfault = int(s[0])
npoint = int(s[1])
Here's what happens: it reads in a line, and splits the line on
whitespace into substrings. It assigns the list of substrings to s.
Then it converts the first substring (s[0]) to an int and assigns it to
nfault; the second (s[1]) to npoint.
With more advanced knowledge of Python, you could write it in one line
like this:
nfault,npoint = (int(ss) for ss in f.readline().split())
> READ(70,*) (x(n), n=1,npoint)
> READ(70,*) (y(n), n=1,npoint)
Fortran programs seem to wrap free-form output to 80 columns, inserting
newlines whenever. Because of this, you can't really free-form read
data in a line-by-line way (unless it's short, like the above example),
but now have to read data number-by-number, which is not so
straightforward.
Fortunately, numpy has a function, fromfile, which reads data
number-by-number. If f is the file object you're reading from, then
you could read in the array like this:
x = numpy.fromfile(f,sep=" ",count=npoint,dtype=numpy.Float)
According to my tests, this leaves f pointing right past the end of the
array, so that you can still read in other arrays and variables. Don't
forget to specify the type.
> and,
>
> READ(20,'(A30)') fname
> DO i=1,nfault
> READ(20,*) dbn(i),dtn(i),xfwnt(i),yfwnt(i),xfent(i),yfent(i),&
> &slpvlS(i),slpvlD(i),slpvlT(i),segdp1(i)
> END DO
Because this line has a very good cha
Re: Reading Fortran Data
Tyler wrote: > Hello All: > > After trying to find an open source alternative to Matlab (or IDL), I > am currently getting acquainted with Python and, in particular SciPy, > NumPy, and Matplotlib. While I await the delivery of Travis Oliphant's > NumPy manual, I have a quick question (hopefully) regarding how to read > in Fortran written data. > > The data files are not binary, but ASCII text files with no formatting > and mixed data types (strings, integers, floats). For example, I have > the following write statements in my Fortran code: In plain Python, you can read each line in to a string, break the string into "words" using split, and then convert the words into variables of the desired types. If you are new to Python, this is an important idiom to learn. I don't know if NumPy has facilities to do this more easily. > I write the files as such: > WRITE(90,'(A30)') fgeo_name > WRITE(90,'(A30)') fmed_name Let me comment on the Fortran code. For the following lines using list-directed output, the compiler has considerable freedom in how it writes the output. I guess you expect the integers nfault and npoint to be written on one line and the vectors xpt and ypt to each be written on separate lines. The compiler could print each number on a separate line and be standard-conforming. This does not matter if you are going to use a Fortran list-directed read to read the file, but it will matter if you are using other languages. I suggest that you use format strings to get more control over the ouptput format before you think about reading the output files in Python. Otherwise you will be trying to hit a moving target. -- http://mail.python.org/mailman/listinfo/python-list
Re: PyMeld for html templates?
Thanks Richie! That's exactly the reply I was hoping for. Hooray! Sean On Jan 20, 2007, at 9:50 PM, Richie Hindle wrote: > Hi Sean, > >> Thanks Richie -- but actually, what I had in mind was slightly >> different. I want for my CONTENT pages to only contain the content. >> So to modify your example: >> >> LAYOUT = """The Title >> The page information goes here. >> Here is the info, which would in the real >> world >> be read from a file.""" >> >> Can I do this just as easily? > > Yes, of course, just the same way: > > from PyMeld import Meld > > LAYOUT = """The Title > The page information goes here. > Here is the info, which would in the real > world be read from a file.""" > > page = Meld(LAYOUT) > info = Meld(INFO) > page.info = info.info._content > print page > > There's nothing that says a Meld has to be a complete HTML document. > >> One other unrelated question... Let's say I have a table with a >> template row with id="myRow". I want to use PyMeld to clone that row >> n number of times (depending on database results). So here's my >> stoopid question: Does that mean that my XHTML will contain n rows >> all with the same id="myRow" thereby making my XHTML invalid? > > Yes, it does, but you can simply delete the 'id' attributes from > the rows, > with `del row.id`, before adding them back into the document. > > -- > Richie Hindle > [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: mmap caching
George Sakkis schrieb: >> You must be misinterpreting what you are seeing. It's the operating >> system that decides what part of a memory-mapped file are held in >> memory, and that is certainly not without limits. > > Sure; what I meant was that that whatever the limit is, it's high > enough that a MemoryError is raised before the limit is reached. The operating system will absolutely, definitely, certainly release any cached data it can purge before reporting it is out of memory. So if you get a MemoryError, it is *not* because the operating system has cached too much data. In fact, memory that is read in because of mmap should *never* cause a MemoryError. Python calls MapViewOfFile when mmap.mmap is invoked, at which point the operating commits to providing that much address space to the application, along with backing storage on disk (typically, from the file being mapped, unless it is an anonymous map). Later access to the mapped range cannot fail (except for hardware errors), and if it would, you wouldn't see a MemoryError. > It's the one in the 'Processes' tab of the Windows task manager (XP > proffesional). By the way, I ran the same program on a box with more > physical memory and the mem. usage stops growing at around 430MB, by > which time the whole file is most likely cached. I'd be interested in > any suggestions other than "buy more RAM" :) (these are not my machines > anyway). As a starting point, try understanding better what is really happening. Turn on "Virtual Memory Size" in "View/Select Columns" also, and perhaps a few additional counters as well. Also take a look at the "Commit Charge", which takes into account swap file usage as well. Try increasing the size of the swap file. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Windows Editors
W. Watson wrote: > I downloaded python-2.5.msi and installed it. I believe its editor is > IDE. I understand there's a Win editor called pythonwin. I believe it's > in the download pywin32-210.win32-py2.5.exe, but I'm not sure if this > exe file has just the editor or all of Python. Comments? If not how do I > get the PythonWin editor by itself? > > BTW, one of the features I did not like of IDE is the limited file Print > command. It puts everything in 16pt type, and gives no choice over what > pages should be printed. Maybe there's an option? > > Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA) > (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) > Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet > >Two laws Newton and Einstein didn't discover: > 1. Time is money. > 2. Matter will be damaged in direct proportion > to its value. there a too many (good) IDE's for Python ;-) maybe we should give them a ranking, I tried 2 of them, and only was stable enough: PyScripter http://mmm-experts.com/Products.aspx?ProductID=4 cheers, Stef Mientki -- http://mail.python.org/mailman/listinfo/python-list
[ANN] wxPython 2.8.1.1
Announcing -- The 2.8.1.1 release of wxPython is now available for download at http://wxpython.org/download.php. This release adds a few minor enhancements and a number of bug fixes designed to further stabalize the 2.8.x release series. Source code is available, as well as binaries for both Python 2.4 and 2.5, for Windows and Mac, as well some pacakges for various Linux distributions. A summary of changes is listed below and also at http://wxpython.org/recentchanges.php. What is wxPython? - wxPython is a GUI toolkit for the Python programming language. It allows Python programmers to create programs with a robust, highly functional graphical user interface, simply and easily. It is implemented as a Python extension module that wraps the GUI components of the popular wxWidgets cross platform library, which is written in C++. wxPython is a cross-platform toolkit. This means that the same program will usually run on multiple platforms without modifications. Currently supported platforms are 32-bit Microsoft Windows, most Linux or other Unix-like systems using GTK2, and Mac OS X 10.3+, in most cases the native widgets are used on each platform to provide a 100% native look and feel for the application. Changes in 2.8.1.1 -- wxMSW: Fix lack of spin control update event when control lost focus Added a typeId property to the PyEventBinder class that holds the eventType ID used for that event. So when you need the eventType (such as when sending your own instance of standard events) you can use, for example, wx.EVT_BUTTON.typeId instead of wx.wxEVT_COMMAND_BUTTON_CLICKED. Note that there are a few composite events, such as EVT_MOUSE and EVT_SCROLL, that will actually bind multiple event types at once, and in these cases the typeId property may not give you what you want. You should use te component events in these cases. PyCrust now has an option for showing/hiding the notebook. wxMSW: Corrected drawing of bitmaps for disabled menu items. Enhanced the wx.lib.mixins.inspect module. In addition to showing a PyCrust window it is now a widget browser, which provides a tree loaded up with all the widgets in the app, optionally with the sizers too, and also a panel displaying the properties of the selected window. Run the demo and type Ctrl-Alt-I keystroke (or Cmd-Alt-I on the Mac) to see how it works. You can add this to your own apps with just a few lines of code. Added wx.SearchCtrl.[Get|Set]DescriptiveText wxMac: Added support for the wx.FRAME_FLOAT_ON_PARENT style. wxMac: the popups used for call tips and autocomplete lists in StyledTextCtrl (such as in PyShell) are now top-level float-on-parent windows so they are no longer clipped by the bounds of the stc window. Added EVT_TASKBAR_CLICK and use it to show taskbar icon menu on right button release, not press, under MSW (bug 1623761) Added wx.TreeCtrl.CollapseAll[Children]() and IsEmpty() methods Fix wx.MDIChidFrame.GetPosition() (patch 1626610) Fix attribute memory leak in wx.grid.Grid::ShowCellEditControl() (patch 1629949) wxGTK: Fix for controls on a toolbar being the full height of the toolbar instead of their natural height. wx.lib.customtreectrl patches from Andrea Gavana. wxMac: Applied patch #1622389, fixing two memory leaks in GetPartialTextExtents. More fixes for the native wx.ListCtrl on Mac. Added wx.aui.AuiNotebook.GetAuiManager(). Added wx.aui.AuiMDIParentFrame and wx.aui.AuiMDIChildFrame, which essentially implement the MDI interface using a normal wx.Frame and a wx.aui.AuiNotebook. -- Robin Dunn Software Craftsman http://wxPython.org Java give you jitters? Relax with wxPython! -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading Fortran Data
Tyler wrote: > Hello All: > > After trying to find an open source alternative to Matlab (or IDL), I > am currently getting acquainted with Python and, in particular SciPy, > NumPy, and Matplotlib. While I await the delivery of Travis Oliphant's > NumPy manual, I have a quick question (hopefully) regarding how to read > in Fortran written data. > > The data files are not binary, but ASCII text files with no formatting > and mixed data types (strings, integers, floats). For example, I have > the following write statements in my Fortran code: Konrad Hinsen has a module for reading this kind of file. http://dirac.cnrs-orleans.fr/ScientificPython/ Specifically, Scientific.IO.FortranFormat . -- 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: mmap caching
Martin v. Löwis wrote: > George Sakkis schrieb: > > I've been trying to track down a memory leak (which I initially > > attributed erroneously to numpy) and it turns out to be caused by a > > memory mapped file. It seems that mmap caches without limit the chunks > > it reads, as the memory usage grows to several hundreds MBs according > > to the Windows task manager before it dies with a MemoryError. > > You must be misinterpreting what you are seeing. It's the operating > system that decides what part of a memory-mapped file are held in > memory, and that is certainly not without limits. Sure; what I meant was that that whatever the limit is, it's high enough that a MemoryError is raised before the limit is reached. > Notice that there are several values that can be called "memory > usage" (such as the size of the committed address space, the working > set size, etc); you don't mention which of these values grows several > hundreds MB. It's the one in the 'Processes' tab of the Windows task manager (XP proffesional). By the way, I ran the same program on a box with more physical memory and the mem. usage stops growing at around 430MB, by which time the whole file is most likely cached. I'd be interested in any suggestions other than "buy more RAM" :) (these are not my machines anyway). Thanks, George -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading Fortran Data
[EMAIL PROTECTED] wrote: > I don't know if this is helpfull or not but (or for that matter > current). http://cens.ioc.ee/projects/f2py2e/ offers some suggestions > and it looks like you can use it with c code also. f2py has been folded into numpy. -- 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: Python Windows Editors
Hi, I guess you could take a look at pydev extension for eclipse and if you wan't an almost straight forward installation, you should consider this link : http://www.easyeclipse.org/site/distributions/python.html Regards, Laurent W. Watson a écrit : > I downloaded python-2.5.msi and installed it. I believe its editor is > IDE. I understand there's a Win editor called pythonwin. I believe it's > in the download pywin32-210.win32-py2.5.exe, but I'm not sure if this > exe file has just the editor or all of Python. Comments? If not how do I > get the PythonWin editor by itself? > > BTW, one of the features I did not like of IDE is the limited file Print > command. It puts everything in 16pt type, and gives no choice over what > pages should be printed. Maybe there's an option? > > Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA) > (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) > Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet > >Two laws Newton and Einstein didn't discover: > 1. Time is money. > 2. Matter will be damaged in direct proportion > to its value. -- http://mail.python.org/mailman/listinfo/python-list
Re: Py 2.5 on Language Shootout
On 20 Jan 2007 14:19:12 -0800, Isaac Gouy <[EMAIL PROTECTED]> wrote: > > Ramon Diaz-Uriarte wrote: > > On 20 Jan 2007 11:34:46 -0800, Isaac Gouy <[EMAIL PROTECTED]> wrote: (...) > > > > > > And that's why the existence of CINT is such a stark reminder of the > > > separation between the language and the implementation. When people > > > think of C what do they think of - gcc? tiny-c? intel c? microsoft c? > > > some mythical C implementation? > > > > > > > > > > Really, this ain't my war. Sure, there are two things: the language > > and the implementation. But, for practical purposes, when most people > > today say Python they mean CPython, whereas if the say Scheme, they > > certainly need to say _which_ Scheme (I think only PLT is in the > > official shootout page; there are others in the beta tests). If people > > want to mean Jython or Stackless, they just say that. As for C, I > > think people will need to qualify what exactly they mean. > > > > I think all these issues do not really lead to confusion for most of > > us; certainly not if you go to the shootout page. But as I said, this > > ain't my war. I was simply pointing out that correcting one poster for > > talking about languages when referring to python was hair splitting. > > > > And I think we are all running in circles, because I guess we all > > agree. This is turning into what in Spain (a country of catholic > > tradition) we call a discussion about "the sex of the angels" (el sexo > > de los angeles), i.e., whether angels are male or female or something > > else. Since sexing angels is not my area of expertise, I'll just shut > > up (I actually don't really know why I even said anything about this > > issue; please, forgive my chatiness). > > > In England the corresponding expression is "Counting Angels on a > Pinhead" > http://dannyayers.com/2001/misc/angels.htm > Thanks, that is neat. I find the discussion on the sex of the angels, well, sexier. But we are probably a few hundred years late to start a catholic-protestant religious war here :-). R. > > > > Best, > > > > R. > > > > > > > > > > > > I think readers understood the previous poster. > > > > > > > > Best, > > > > > > > > R. > > > > > > > > > > Cheers, > > > > > > > > > > Carl Friedrich Bolz > > > > > > > > > > -- > > > > > http://mail.python.org/mailman/listinfo/python-list > > > > > > > > > > > > > > > > > -- > > > > Ramon Diaz-Uriarte > > > > Statistical Computing Team > > > > Structural Biology and Biocomputing Programme > > > > Spanish National Cancer Centre (CNIO) > > > > http://ligarto.org/rdiaz > > > > > > -- > > > http://mail.python.org/mailman/listinfo/python-list > > > > > > > > > -- > > Ramon Diaz-Uriarte > > Statistical Computing Team > > Structural Biology and Biocomputing Programme > > Spanish National Cancer Centre (CNIO) > > http://ligarto.org/rdiaz > > -- > http://mail.python.org/mailman/listinfo/python-list > -- Ramon Diaz-Uriarte Statistical Computing Team Structural Biology and Biocomputing Programme Spanish National Cancer Centre (CNIO) http://ligarto.org/rdiaz -- http://mail.python.org/mailman/listinfo/python-list
Re: Reading Fortran Data
I don't know if this is helpfull or not but (or for that matter current). http://cens.ioc.ee/projects/f2py2e/ offers some suggestions and it looks like you can use it with c code also. Tyler wrote: > Hello All: > > After trying to find an open source alternative to Matlab (or IDL), I > am currently getting acquainted with Python and, in particular SciPy, > NumPy, and Matplotlib. While I await the delivery of Travis Oliphant's > NumPy manual, I have a quick question (hopefully) regarding how to read > in Fortran written data. > > The data files are not binary, but ASCII text files with no formatting > and mixed data types (strings, integers, floats). For example, I have > the following write statements in my Fortran code: > > I write the files as such: > WRITE(90,'(A30)') fgeo_name > WRITE(90,'(A30)') fmed_name > WRITE(90,*) nfault,npoint > WRITE(90,*) (xpt(n), n=1,npoint) > WRITE(90,*) (ypt(n), n=1,npoint) > > and, > > WRITE(10,'(A30)') fname > DO i=1,nfault > WRITE(10,*) dbn(i),dtn(i),xfwnt(i),yfwnt(i),xfent(i),yfent(i),& > &slpvlS(i),slpvlD(i),slpvlT(i),segdp1(i) > END DO > > > I then respectively read them into Fortran as: > READ(70,'(A30)') fgeo_name > READ(70,'(A30)') fmed_name > READ(70,*) nfault,npoint > READ(70,*) (x(n), n=1,npoint) > READ(70,*) (y(n), n=1,npoint) > > and, > > READ(20,'(A30)') fname > DO i=1,nfault > READ(20,*) dbn(i),dtn(i),xfwnt(i),yfwnt(i),xfent(i),yfent(i),& > &slpvlS(i),slpvlD(i),slpvlT(i),segdp1(i) > END DO > > I also read them into IDL for visualization using the "READF" command. > I was wondering how I might go about reading this into Python using > NumPy. If this is not trivial, let me know and I'll just wait until the > NumPy manual arrives. > > Cheers, > > t. -- http://mail.python.org/mailman/listinfo/python-list
Re: instancemethod
On 21 Jan 2007 14:35:19 -0800, Nanjundi <[EMAIL PROTECTED]> wrote:
> >
> > if __name__ == '__main__':
> > gert=Db('localhost','root','**','gert')
> > gert.excecute('select * from person')
> > for x in range(0,gert.rowcount):
> > print gert.fetchone()
> > gert.close()
> >
> > [EMAIL PROTECTED]:~$ python ./Desktop/svn/db/Py/db.py
> > Traceback (most recent call last):
> > File "./Desktop/svn/db/Py/db.py", line 35, in
> > for x in range(0,gert.rowcount):
> > TypeError: range() integer end argument expected, got instancemethod.
> > [EMAIL PROTECTED]:~$
> >
> > Can anybody explain what i must do in order to get integer instead of
> > a instance ?
>
> Gert,
> > for x in range(0,gert.rowcount):
> gert.rowcount is the method (and not a data attribute).
> gert.rowcount() is the method call, which get the return value from
> method.
>
> So try this.
> for x in range( 0,gert.rowcount() ):
>
Doh! :)
thx
--
http://mail.python.org/mailman/listinfo/python-list
Re: instancemethod
>
> if __name__ == '__main__':
> gert=Db('localhost','root','**','gert')
> gert.excecute('select * from person')
> for x in range(0,gert.rowcount):
> print gert.fetchone()
> gert.close()
>
> [EMAIL PROTECTED]:~$ python ./Desktop/svn/db/Py/db.py
> Traceback (most recent call last):
> File "./Desktop/svn/db/Py/db.py", line 35, in
> for x in range(0,gert.rowcount):
> TypeError: range() integer end argument expected, got instancemethod.
> [EMAIL PROTECTED]:~$
>
> Can anybody explain what i must do in order to get integer instead of
> a instance ?
Gert,
> for x in range(0,gert.rowcount):
gert.rowcount is the method (and not a data attribute).
gert.rowcount() is the method call, which get the return value from
method.
So try this.
for x in range( 0,gert.rowcount() ):
-N
--
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Re: Python Windows Editors
The pywin32 extension does not contain the python runtime itself, but comes with many (very useful) classes you can use when interacting with the windows universe. The editor is based on a component called scintilla (http://www.scintilla.org/). The referenced site also offers an editor SciTE based around the component, which comes with some nice features and syntax files for a number of languages. If you are going to make use of python on the windows platform, I would highly recommend the pywin32 extension. Regards, Ant W. Watson wrote: > I downloaded python-2.5.msi and installed it. I believe its editor is IDE. I > understand there's a Win editor called pythonwin. I believe it's in the > download pywin32-210.win32-py2.5.exe, but I'm not sure if this exe file has > just the editor or all of Python. Comments? If not how do I get the > PythonWin editor by itself? > > BTW, one of the features I did not like of IDE is the limited file Print > command. It puts everything in 16pt type, and gives no choice over what > pages should be printed. Maybe there's an option? > > Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA) > (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) >Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet > > Two laws Newton and Einstein didn't discover: > 1. Time is money. > 2. Matter will be damaged in direct proportion > to its value. > -- > Web Page: -- http://mail.python.org/mailman/listinfo/python-list
Re: pyparsing Combine without merging sub-expressions
Steven Bethard wrote:
> Within a larger pyparsing grammar, I have something that looks like::
>
> wsj/00/wsj_0003.mrg
>
> When parsing this, I'd like to keep around both the full string, and the
> AAA_ substring of it, so I'd like something like::
>
> >>> foo.parseString('wsj/00/wsj_0003.mrg')
> (['wsj/00/wsj_0003.mrg', 'wsj_0003'], {})
>
> How do I go about this? I was using something like::
>
> >>> digits = pp.Word(pp.nums)
> >>> alphas = pp.Word(pp.alphas)
> >>> wsj_name = pp.Combine(alphas + '_' + digits)
> >>> wsj_path = pp.Combine(alphas + '/' + digits + '/' + wsj_name +
> ... '.mrg')
>
> But of course then all I get back is the full path::
>
> >>> wsj_path.parseString('wsj/00/wsj_0003.mrg')
> (['wsj/00/wsj_0003.mrg'], {})
>
The tokens are what the tokens are, so if you want to replicate a
sub-field, then you'll need a parse action to insert it into the
returned tokens. BUT, if all you want is to be able to easily *access*
that sub-field, then why not give it a results name? Like this:
wsj_name = pp.Combine(alphas + '_' + digits).setResultsName("name")
Leave everything else the same, but now you can access the name field
independently from the rest of the combined tokens.
result = wsj_path.parseString('wsj/00/wsj_0003.mrg')
print result.dump()
print result.name
print result.asList()
-- Paul
--
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instancemethod
import MySQLdb
class Db:
_db=-1
_cursor=-1
@classmethod
def __init__(self,server,user,password,database):
self._db=MySQLdb.connect(server , user , password , database)
self._cursor=self._db.cursor()
@classmethod
def excecute(self,cmd):
self._cursor.execute(cmd)
self._db.commit()
@classmethod
def rowcount(self):
return int(self._cursor.rowcount)
@classmethod
def fetchone(self):
return self._cursor.fetchone()
@classmethod
def close(self):
self._cursor.close()
self._db.close()
if __name__ == '__main__':
gert=Db('localhost','root','**','gert')
gert.excecute('select * from person')
for x in range(0,gert.rowcount):
print gert.fetchone()
gert.close()
[EMAIL PROTECTED]:~$ python ./Desktop/svn/db/Py/db.py
Traceback (most recent call last):
File "./Desktop/svn/db/Py/db.py", line 35, in
for x in range(0,gert.rowcount):
TypeError: range() integer end argument expected, got instancemethod.
[EMAIL PROTECTED]:~$
Can anybody explain what i must do in order to get integer instead of
a instance ?
--
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Reading Fortran Data
Hello All: After trying to find an open source alternative to Matlab (or IDL), I am currently getting acquainted with Python and, in particular SciPy, NumPy, and Matplotlib. While I await the delivery of Travis Oliphant's NumPy manual, I have a quick question (hopefully) regarding how to read in Fortran written data. The data files are not binary, but ASCII text files with no formatting and mixed data types (strings, integers, floats). For example, I have the following write statements in my Fortran code: I write the files as such: WRITE(90,'(A30)') fgeo_name WRITE(90,'(A30)') fmed_name WRITE(90,*) nfault,npoint WRITE(90,*) (xpt(n), n=1,npoint) WRITE(90,*) (ypt(n), n=1,npoint) and, WRITE(10,'(A30)') fname DO i=1,nfault WRITE(10,*) dbn(i),dtn(i),xfwnt(i),yfwnt(i),xfent(i),yfent(i),& &slpvlS(i),slpvlD(i),slpvlT(i),segdp1(i) END DO I then respectively read them into Fortran as: READ(70,'(A30)') fgeo_name READ(70,'(A30)') fmed_name READ(70,*) nfault,npoint READ(70,*) (x(n), n=1,npoint) READ(70,*) (y(n), n=1,npoint) and, READ(20,'(A30)') fname DO i=1,nfault READ(20,*) dbn(i),dtn(i),xfwnt(i),yfwnt(i),xfent(i),yfent(i),& &slpvlS(i),slpvlD(i),slpvlT(i),segdp1(i) END DO I also read them into IDL for visualization using the "READF" command. I was wondering how I might go about reading this into Python using NumPy. If this is not trivial, let me know and I'll just wait until the NumPy manual arrives. Cheers, t. -- http://mail.python.org/mailman/listinfo/python-list
Re: SOAPpy and ArrayOfString
Figured it out. This works:
#!/usr/bin/python
import SOAPpy
wsdlFile =
'http://localhost:8080/axis/services/USD_R11_WebService?WSDL'
server = SOAPpy.WSDL.Proxy(wsdlFile)
server.soapproxy.config.dumpSOAPOut = 1
server.soapproxy.config.dumpSOAPIn = 1
SID = server.login('srvcdesk', 'x')
attr = SOAPpy.structType()
attr._addItem('string', 'userid')
attr._addItem('string', 'last_name')
attr._addItem('string', 'first_name')
contacts = server.doSelect(SID, 'cnt', "userid = 'srvcdesk'", 1, attr)
print contacts
server.logout(SID)
The XML generated is very similar, but my web service seems to like
this for some reason...weird.
icius wrote:
> Hello all,
>
> I am trying to use a web services API with Python and SOAPpy as a
> client. Some of the method paramters in this web service's WSDL are
> asking for an "ArrayOfString" type. Here is my code so far:
>
> #!/usr/bin/python
>
> from SOAPpy import WSDL
>
> wsdlFile =
> 'http://localhost:8080/axis/services/USD_R11_WebService?WSDL'
>
> server = WSDL.Proxy(wsdlFile)
>
> server.soapproxy.config.dumpSOAPOut = 1
> server.soapproxy.config.dumpSOAPIn = 1
>
> SID = server.login('srvcdesk', '')
>
> contacts = server.doSelect(SID, 'cnt', "userid = 'abeju01'", 1,
> ['last_name', 'first_name', 'userid'])
>
>
> I tried using a simple Python list for the argument that wants
> "ArrayOfString". Python generates the following XML for the last
> argument of the "doSelect" command above:
>
>
> last_name
> first_name
> userid
>
>
>
> The web service does not like this at all and returns the following
> error:
>
> SOAPpy.Types.faultType: org.xml.sax.SAXException: Bad types (class [Ljava.lang.Object; -> class
> usdjws65.ArrayOfString): >
>
>
> I know in Perl I had to do some special gyrations to pass the right
> structue for ArrayOfString to this same web service. Is there any way
> to force a type in Python or any other ideas on how to do this?
--
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Re: Python Windows Editors
W. Watson wrote: > I downloaded python-2.5.msi and installed it. I believe its editor is IDE. I > understand there's a Win editor called pythonwin. I believe it's in the > download pywin32-210.win32-py2.5.exe, but I'm not sure if this exe file has > just the editor or all of Python. Comments? If not how do I get the > PythonWin editor by itself? > > BTW, one of the features I did not like of IDE is the limited file Print > command. It puts everything in 16pt type, and gives no choice over what > pages should be printed. Maybe there's an option? Print your files from Notepad, after all, they're just text files. But IDLE has more usefull Formatting options. > > Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA) > (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) >Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet > > Two laws Newton and Einstein didn't discover: > 1. Time is money. > 2. Matter will be damaged in direct proportion > to its value. > -- > Web Page: -- http://mail.python.org/mailman/listinfo/python-list
Re: mmap caching
George Sakkis schrieb: > I've been trying to track down a memory leak (which I initially > attributed erroneously to numpy) and it turns out to be caused by a > memory mapped file. It seems that mmap caches without limit the chunks > it reads, as the memory usage grows to several hundreds MBs according > to the Windows task manager before it dies with a MemoryError. You must be misinterpreting what you are seeing. It's the operating system that decides what part of a memory-mapped file are held in memory, and that is certainly not without limits. Notice that there are several values that can be called "memory usage" (such as the size of the committed address space, the working set size, etc); you don't mention which of these values grows several hundreds MB. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: Beginners Tutorial in PDF Format?
W. Watson wrote: > I'd like to print a tutorial in one fell swoop, but it seems most on the > various sites are page by page embedded descriptions in the page. Any > available as a pdf? > > Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA) > (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) >Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet > > Two laws Newton and Einstein didn't discover: > 1. Time is money. > 2. Matter will be damaged in direct proportion > to its value. > -- > Web Page: http://docs.python.org/download.html http://www.diveintopython.org/ HTH Robert -- http://mail.python.org/mailman/listinfo/python-list
Re: mmap caching
Nick Craig-Wood wrote: > George Sakkis <[EMAIL PROTECTED]> wrote: > > I've been trying to track down a memory leak (which I initially > > attributed erroneously to numpy) and it turns out to be caused by a > > memory mapped file. It seems that mmap caches without limit the chunks > > it reads, as the memory usage grows to several hundreds MBs according > > to the Windows task manager before it dies with a MemoryError. I'm > > positive that these chunks are not referenced anywhere else; in fact if > > I change the mmap object to a normal file, memory usage remains > > constant. The documentation of mmap doesn't mention anything about > > this. Can the caching strategy be modified at the user level ? > > I'm not familiar with mmap() on windows, but assuming it works the > same way as unix... > > The point of mmap() is to map files into memory. It is completely up > to the OS to bring pages into memory for you to read / write to, and > completely up to the OS to get rid of them again. > > What you would expect is that the file is demand paged into memory as > you access bits of it. These pages will remain in memory until the OS > feels some memory pressure when the pages will be written out if dirty > and then dropped. > > The OS will try to keep hold of pages as long as possible just in case > you need them again. The pages dropped should be the least recently > used pages. > > I wouldn't have expected a MemoryError though... > > Did you do mmap.flush() after writing? The file is written once and then opened as read-only, there's no flushing. So if caching is completely up to the OS, I take it that my options are either (1) modify my algorithms so that they work in fixed-size batches instead of arbitrarily long sequences or (2) implement my own memory-mapping scheme to fit my algorithms. I guess (1) would be the less trouble overall, or is there a way to give a hint to the OS on how large cache can it use ? George -- http://mail.python.org/mailman/listinfo/python-list
Re: Accessing class variables in staticmethods.
On 21 Jan 2007 12:49:17 -0800, Ramashish Baranwal <[EMAIL PROTECTED]> wrote: > class Base: > staticvar = 'Base' > > @staticmethod > def printname(): > # this doesn't work > # print staticvar > # this does work but derived classes wouldn't behave as I want > print Base.staticvar > > class Derived(Base): > staticvar = 'Derived' > > Base.printname() # should print 'Base' > Derived.printname() # should print 'Derived' > > Any idea on how to go about this? Also from a staticmethod how can I > find out other attributes of the class (not objects)? Do static methods > get some classinfo via some implicit argument(s)? No, staticmethods get told nothing about the class they're being defined in. What you want is a classmethod, which gets passed the class to work with. Using classmethods, your code becomes: #untested, bear in mind class Base: staticvar = 'Base' @classmethod def printname(cls): print cls.staticvar class Derived(Base): staticvar = 'Derived' Base.printname() #prints 'Base' Derived.printname() #prints 'Derived' Incidentally, you can also use cls.__name__ for this purpose, but I guess that your actual motivation for this is more complicated than class names. -- http://mail.python.org/mailman/listinfo/python-list
Accessing class variables in staticmethods.
Hi, I want to access a static variable in a staticmethod. The variable can be redefined by derived classes and that should be reflected in base's staticmethod. Consider this trivial example- class Base: staticvar = 'Base' @staticmethod def printname(): # this doesn't work # print staticvar # this does work but derived classes wouldn't behave as I want print Base.staticvar class Derived(Base): staticvar = 'Derived' Base.printname() # should print 'Base' Derived.printname() # should print 'Derived' Any idea on how to go about this? Also from a staticmethod how can I find out other attributes of the class (not objects)? Do static methods get some classinfo via some implicit argument(s)? Thanks in advance, Ram -- http://mail.python.org/mailman/listinfo/python-list
Beginners Tutorial in PDF Format?
I'd like to print a tutorial in one fell swoop, but it seems most on the various sites are page by page embedded descriptions in the page. Any available as a pdf? Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA) (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet Two laws Newton and Einstein didn't discover: 1. Time is money. 2. Matter will be damaged in direct proportion to its value. -- Web Page: -- http://mail.python.org/mailman/listinfo/python-list
Python Windows Editors
I downloaded python-2.5.msi and installed it. I believe its editor is IDE. I understand there's a Win editor called pythonwin. I believe it's in the download pywin32-210.win32-py2.5.exe, but I'm not sure if this exe file has just the editor or all of Python. Comments? If not how do I get the PythonWin editor by itself? BTW, one of the features I did not like of IDE is the limited file Print command. It puts everything in 16pt type, and gives no choice over what pages should be printed. Maybe there's an option? Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA) (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time) Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet Two laws Newton and Einstein didn't discover: 1. Time is money. 2. Matter will be damaged in direct proportion to its value. -- Web Page: -- http://mail.python.org/mailman/listinfo/python-list
Re: mmap caching
George Sakkis <[EMAIL PROTECTED]> wrote: > I've been trying to track down a memory leak (which I initially > attributed erroneously to numpy) and it turns out to be caused by a > memory mapped file. It seems that mmap caches without limit the chunks > it reads, as the memory usage grows to several hundreds MBs according > to the Windows task manager before it dies with a MemoryError. I'm > positive that these chunks are not referenced anywhere else; in fact if > I change the mmap object to a normal file, memory usage remains > constant. The documentation of mmap doesn't mention anything about > this. Can the caching strategy be modified at the user level ? I'm not familiar with mmap() on windows, but assuming it works the same way as unix... The point of mmap() is to map files into memory. It is completely up to the OS to bring pages into memory for you to read / write to, and completely up to the OS to get rid of them again. What you would expect is that the file is demand paged into memory as you access bits of it. These pages will remain in memory until the OS feels some memory pressure when the pages will be written out if dirty and then dropped. The OS will try to keep hold of pages as long as possible just in case you need them again. The pages dropped should be the least recently used pages. I wouldn't have expected a MemoryError though... Did you do mmap.flush() after writing? -- Nick Craig-Wood <[EMAIL PROTECTED]> -- http://www.craig-wood.com/nick -- http://mail.python.org/mailman/listinfo/python-list
Re: A solution to the MSVCRT vs MSVCR71 problem?
sturlamolden schrieb: >> This would only work, if runtime dll's were compatibles between them, >> and they are not. > > It is standard C, defined by ANSI and ISO. ANSI and ISO don't define the ABI, though. For example, the definition of the FILE type might (and does) vary across compilers, even if all these compilers implement C99. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: A solution to the MSVCRT vs MSVCR71 problem?
Gabriel Genellina schrieb: > That's a good thing - but is this just by accident, or is documented > somewhere? It's documented somewhere (although I can't find the documentation right now - it explains how you can link object files from a static library compiled with an older compiler version against a new version of the C library). > I remember that I tried something like that in the past, and failed. > (Perhaps earlier versions where not fully backwards compatible - or I > didn't try hard enough that time). It's been that way for ages, atleast since they started to support 32-bit code. So if you had problems, they might have had a different source. It's a different thing for the C++ libraries, though. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: A solution to the MSVCRT vs MSVCR71 problem?
Gabriel Genellina wrote: > This would only work, if runtime dll's were compatibles between them, > and they are not. It is standard C, defined by ANSI and ISO. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is any python like linux shell?
Frank Potter wrote: > I learned some python in windows. > And now I've turned to linux. > I read a book and it teaches how to write shell script with bash, > but I don't feel like the grammar of bash. > Since I know about python, > I want to get a linux shell which use python grammar. > I searched by google and I found pysh, which is not maintained any > more. > There's another script named pyshell, which is not likely what I'm > searching for. > So, will somebody please tell me if there are any python like shells > for linux? IPython is actually more than a simple shell. Give it a try: http://ipython.scipy.org/. George -- http://mail.python.org/mailman/listinfo/python-list
Is any python like linux shell?
I learned some python in windows. And now I've turned to linux. I read a book and it teaches how to write shell script with bash, but I don't feel like the grammar of bash. Since I know about python, I want to get a linux shell which use python grammar. I searched by google and I found pysh, which is not maintained any more. There's another script named pyshell, which is not likely what I'm searching for. So, will somebody please tell me if there are any python like shells for linux? -- http://mail.python.org/mailman/listinfo/python-list
Re: selective logger disable/enable
Gary Jefferson wrote:
> Thanks for the reply Vinay. I had been reading those docs prior to
> posting, but addFilter/removeFilter only work on individual logger
> instances and handlers. I want to globally enable/disable multiple
> logger instances, based on their namespaces (see the example I
> provided). I cannot find a way to do this. I can certainly call
> addFilter on every instance of every logger throughout the source code,
> but this is more than inconvenient -- it breaks when new modules are
> added with their own loggers in their own namespaces (until fixed by
> manually adding addFilter() to those instances).
>
> e.g., suppose you have a source tree with a several components that do
> network access, and several components that do other things like saving
> state to disk, accessing the filesystem, etc. And suppose you find a
> bug that you think is in the networking code. It would be nice to be
> able to GLOBALLY enable just the loggers that belong in the networking
> namespace, and disable all others (similar to how Filters are supposed
> to work for individual loggers). And then to be able to do this with
> any component, by providing, for example, a command line switch or
> environment variable. Otherwise, the poor programmer is forced to go
> and edit every module in the source tree to selectively turn on/off
> their respecitve loggers. Or am I missing something really obvious
> about how this is done with the logging module?
I don't know enough about your target environment and application to
necessarily give you the best advice, but I'll make some general
comments which I hope are useful. You seem to be thinking that loggers
are binary - i.e. you turn them on or off. But they can be controlled
more finely than that; you should be able to get the effect that you
want by using the different logging levels available judiciously, as
well as using the fact that loggers inhabit a named hierarchy. Note
that loggers, by default, inherit the level of the first ancestor
logger which has an explicitly set level (by ancestor, I mean in the
name hierarchy). The root logger's default level is WARNING, so by
default all loggers will work at this level. [N.B. You can also set
levels for individual handlers, e.g. to ensure that only CRITICAL
conditions are emailed to a specified email address using SMTPHandler,
or that ERROR conditions and above are written to file but not to
console.]
So, for your networking scenario, let's suppose you do the following:
Have all network loggers live in the hierarchy namespace below
"network" (e.g. "network", "network.tcp", "network.http" etc.). By
default, all of these will only log events of severity WARNING and
above. Also, suppose you log events in your application code, which are
sometimes but not always of interest, at level DEBUG or level INFO.
Then, these events will never show up in the logging output, since they
are below WARNING in severity. Subsequently, if you want to turn on
logging verbosity for the network code only, you can arrange, via a
command-line switch or environment variable or configuration file, to
do
logging.getLogger("network").setLevel(logging.DEBUG)
whereupon you will start seeing events from the networking code at
severity DEBUG and INFO. This will affect all loggers in the "network"
hierarchy whose levels you have not explicitly set (so that they will
get the effective level of the first ancestor which has a level
explicitly set - the logger named "network").
If all you are interested in is turning on verbosity based on different
event severities (levels), you should not need to use or set Filters.
Filters are for use only when levels don't meet your use case
requirements.
Best regards,
Vinay Sajip
--
http://mail.python.org/mailman/listinfo/python-list
Re: Number methods
Nick Maclaren wrote: > I can't find any description of these. Most are obvious, but some > are not. Note that this is from the point of view of IMPLEMENTING > them, not USING them. Specifically: The Python equivalents of these methods are described in the reference manual: http://docs.python.org/ref/numeric-types.html More details can be founf in various PEPs: http://www.python.org/dev/peps/ > Does Python use classic division (nb_divide) and inversion (nb_invert) > or are they entirely historical? Note that I can very easily provide > the latter. Python uses classic divison by default. True divison is used only when the division __future__ directive is in effect. See PEP 238 for details: http://www.python.org/dev/peps/pep-0238/ The nb_invert method is used for the implementation of the bitwise inverse unary operator (~). I don't think that it is deprecated. See: http://docs.python.org/lib/bitstring-ops.html for details. > Is there any documentation on the coercion function (nb_coerce)? It > seems to have unusual properties. It is used for old style Python classes and extension types that don't have Py_TPFLAGS_CHECKTYPES in their tp_flags. See: http://docs.python.org/ref/coercion-rules.html and http://www.python.org/dev/peps/pep-0208/ for details. Ziga -- http://mail.python.org/mailman/listinfo/python-list
Re: A solution to the MSVCRT vs MSVCR71 problem?
At Sunday 21/1/2007 05:38, Martin v. Löwis wrote: >Gabriel Genellina schrieb: > > This would only work, if runtime dll's were compatibles between them, > > and they are not. You can't blindly redirect a call to msvcr71.__xyz to > > msvcr80.__xyz and expect that to work magically - it may have a > > different number of arguments, or different types, or even may not exist > > anymore. > >Actually, the libraries *are* binary-compatible (on the ABI level). You >just can't mix two libraries in a single program easily. That's a good thing - but is this just by accident, or is documented somewhere? I remember that I tried something like that in the past, and failed. (Perhaps earlier versions where not fully backwards compatible - or I didn't try hard enough that time). -- Gabriel Genellina Softlab SRL __ Preguntá. Respondé. Descubrí. Todo lo que querías saber, y lo que ni imaginabas, está en Yahoo! Respuestas (Beta). ¡Probalo ya! http://www.yahoo.com.ar/respuestas -- http://mail.python.org/mailman/listinfo/python-list
***** See my Cam *****
http://clippay.blogspot.com True Pooper... -- http://mail.python.org/mailman/listinfo/python-list
Re: A solution to the MSVCRT vs MSVCR71 problem?
Gabriel Genellina schrieb: > This would only work, if runtime dll's were compatibles between them, > and they are not. You can't blindly redirect a call to msvcr71.__xyz to > msvcr80.__xyz and expect that to work magically - it may have a > different number of arguments, or different types, or even may not exist > anymore. Actually, the libraries *are* binary-compatible (on the ABI level). You just can't mix two libraries in a single program easily. > (And what about any symbol exported by ordinal?) That doesn't happen for msvcrt, as the import library links by name. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: A solution to the MSVCRT vs MSVCR71 problem?
At Sunday 21/1/2007 00:07, sturlamolden wrote: Solution to problem 1: Compile with your compiler or choice, never mind which CRT are used. Use a 'dumpbin' program, find all references to msvcrt in the binary DLL file. Create a dll with name "py_crt" that exports these functions but redirects them to msvcrt71. That is, in the file py_crt.def we put something like EXPORTS malloc=msvcr71.malloc free=msvcr71.free etc. Compile the DLL py_crt.dll and then open your pyd file in binary mode. Exchange all occurances of the string "msvcrt" (or any other CRT name) with "py_crt". Now your binary should work just fine. What you need to make sure is just that the name of the proxy has the same number of letters as the CRT your compiler linked. So if it is msvcrt81.dll, e.g. use something like py_crt81.dll instead of py_crt.dll. Solution to problem 2: [modify external references inside python25.dll to use a different runtime] This would only work, if runtime dll's were compatibles between them, and they are not. You can't blindly redirect a call to msvcr71.__xyz to msvcr80.__xyz and expect that to work magically - it may have a different number of arguments, or different types, or even may not exist anymore. (And what about any symbol exported by ordinal?) -- Gabriel Genellina Softlab SRL __ Preguntá. Respondé. Descubrí. Todo lo que querías saber, y lo que ni imaginabas, está en Yahoo! Respuestas (Beta). ¡Probalo ya! http://www.yahoo.com.ar/respuestas -- http://mail.python.org/mailman/listinfo/python-list
mmap caching
I've been trying to track down a memory leak (which I initially attributed erroneously to numpy) and it turns out to be caused by a memory mapped file. It seems that mmap caches without limit the chunks it reads, as the memory usage grows to several hundreds MBs according to the Windows task manager before it dies with a MemoryError. I'm positive that these chunks are not referenced anywhere else; in fact if I change the mmap object to a normal file, memory usage remains constant. The documentation of mmap doesn't mention anything about this. Can the caching strategy be modified at the user level ? George -- http://mail.python.org/mailman/listinfo/python-list
SOAPpy and ArrayOfString
Hello all,
I am trying to use a web services API with Python and SOAPpy as a
client. Some of the method paramters in this web service's WSDL are
asking for an "ArrayOfString" type. Here is my code so far:
#!/usr/bin/python
from SOAPpy import WSDL
wsdlFile =
'http://localhost:8080/axis/services/USD_R11_WebService?WSDL'
server = WSDL.Proxy(wsdlFile)
server.soapproxy.config.dumpSOAPOut = 1
server.soapproxy.config.dumpSOAPIn = 1
SID = server.login('srvcdesk', '')
contacts = server.doSelect(SID, 'cnt', "userid = 'abeju01'", 1,
['last_name', 'first_name', 'userid'])
I tried using a simple Python list for the argument that wants
"ArrayOfString". Python generates the following XML for the last
argument of the "doSelect" command above:
last_name
first_name
userid
The web service does not like this at all and returns the following
error:
SOAPpy.Types.faultType: class
usdjws65.ArrayOfString): >
I know in Perl I had to do some special gyrations to pass the right
structue for ArrayOfString to this same web service. Is there any way
to force a type in Python or any other ideas on how to do this?
--
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