Next meeting of the Hamburg Python User Group
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello, if you happen to be in Hamburg, Germany at November, 14th, and you'd like to meet fellow Pythonistas, you should come to Jarrestraße 46 at DDD design, who are generously hosting us again. We will start at 19:30 and this time we will have a presentation again. It will be about SQLAlchemy and I will do it. Hamburg's Pythonistas can be found online in the Google Group http://groups.google.com/group/hamburg-pythoneers Cheers, Gerhard -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHMPLSdIO4ozGCH14RAnpIAJ9aWSDLKL5RyU1GSZT/KItWEvDr3gCffHYg lF3y9LUmu+FLnCooBX7RrY4= =OSsp -END PGP SIGNATURE- -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
New book: Object-Oriented Programming in Python
We are pleased to announce the release of a new Python book. Object-Oriented Programming in Python by Michael H. Goldwasser and David Letscher Prentice Hall, 2008 (available as of 10/29/2007) This book is based on materials developed after switching our curriculum to the use of Python for an object-oriented CS1 course. Since the primary market is an introductory course, we do not assume any previous programming experience for our readers. This should make it a very good match for those who wish to self-study. The book differs greatly from existing introductory Python books as it warmly embraces the object-oriented nature of Python from the onset. It is also extremely comprehensive with solid fundamentals as well as several advanced topics that can be covered as desired. More information can be found at http://www.prenhall.com/goldwasser With regard, Michael Goldwasser +---+ | Michael Goldwasser| | Associate Professor | | Dept. Mathematics and Computer Science| | Saint Louis University| | 220 North Grand Blvd. | | St. Louis, MO 63103-2007 | | | | Office: Ritter Hall 6 | | Email: [EMAIL PROTECTED] | | URL:euler.slu.edu/~goldwasser | | Phone: (314) 977-7039| | Fax:(314) 977-1452| +---+ -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
[ANN] Release 0.66.1 of Task Coach
Hi, I'm happy to announce release 0.66.1 of Task Coach. This bug fix release addresses four bugs: * When changing the sort order in a tree viewer, keep collapsed items collapsed and expanded items expanded. * Sort categories alphabetically in task editor. * Double clicking a task in the tree view did not open the task edit dialog. * When filtering on a specific category, a newly added task belonging to that category was not shown in the task viewers. What is Task Coach? Task Coach is a simple task manager that allows for hierarchical tasks, i.e. tasks in tasks. Task Coach is open source (GPL) and is developed using Python and wxPython. You can download Task Coach from: http://www.taskcoach.org In addition to the source distribution, packaged distributions are available for Windows XP/Vista, Mac OSX, and Linux (Debian and RPM format). Note that Task Coach is alpha software, meaning that it is wise to back up your task file regularly, and especially when upgrading to a new release. Cheers, Frank -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
ANN: NumPy 1.0.4
I'm pleased to announce the release of NumPy 1.0.4. NumPy is the fundamental package needed for scientific computing with Python. It contains: * a powerful N-dimensional array object * sophisticated (broadcasting) functions * basic linear algebra functions * basic Fourier transforms * sophisticated random number capabilities * tools for integrating Fortran code. Besides it's obvious scientific uses, NumPy can also be used as an efficient multi-dimensional container of generic data. Arbitrary data-types can be defined. This allows NumPy to seamlessly and speedily integrate with a wide-variety of databases. This is largely a bug fix release with one notable improvement: * The NumPy and SciPy developers have decided to adopt the Python naming convention for classes. So as of this release, TestCase classes may now be prefixed with either 'test' or 'Test'. This will allow us to write TestCase classes using the CapCase words, while still accepting the old style names. For information, please see the release notes: http://sourceforge.net/project/shownotes.php?release_id=552568group_id=1369 Thank you to everybody who contributed to the recent release. Enjoy, -- Jarrod Millman Computational Infrastructure for Research Labs 10 Giannini Hall, UC Berkeley phone: 510.643.4014 http://cirl.berkeley.edu/ -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
Re: Drawing charts in Qt
On Nov 6, 5:08 pm, David Boddie [EMAIL PROTECTED] wrote: On Tue Nov 6 15:46:07 CET 2007, Michel Albert wrote: [PyQwt and matplotlib] PyQwt looks much more interesting, but I have trouble installing it. On my machine it complains that sipconfig has no attribute '_pkg_config'. Is the configuration script finding the sipconfig file for SIP 3 or SIP 4? How can I see if it's finding it or not? It does not give me any helpful output. In the end the application should also run on Windows boxes. And I suppose as long as I use the right versions and use the precompiled binaries, I should get it at least installed. But the thing with the version numbers looks like some major lottery game to me. If one of the elements in the chain (be it Qt, or Qwt) release new versions and the available binary distributions get out of sync, future support for the written application becomes foggy. I'm not sure what you mean. Can you explain? Well, I suppose I can manage this. If there really are some version problems I can always compile everything I need myself. Has anyone ever successfully used these graphing libraries with PyQt? Or are there other graphing libraries available? In fact, my needs are modest. A Line- and Bar-Chart would solve the majority of problems. I've installed PyQwt for PyQt4 and tried the examples, but only out of curiosity because I wasn't writing an application that needed those facilities at the time. David -- http://mail.python.org/mailman/listinfo/python-list
RE: Parallel Python environments..
* bruce (Tue, 6 Nov 2007 13:43:10 -0800) if i have python 2.4.3 installed, it gets placed in the python2.4 dir.. if i don't do anything different, and install python 2.4.2, it too will get placed in the python2.4 tree... which is not what i want. i'm running rhel4/5... So you're using rpm as a packet manager. I suggest you RTFM to see if there are options for slots or dual installations. so.. i still need to know what to do/change in order to be able to run multiple versions of python, and to switch back/forth between the versions. Unpack the Python rpm to ~/bin or compile Python yourself. And be more specific about what you mean with switching back/forth. On the other hand - as Gabriel pointed out: there is almost a 100% certainty that the problem you want to solve by having Python 2.4.2 *and* 2.4.3 simultaneously exists only in your head or cannot be solved this way. Thorsten -- http://mail.python.org/mailman/listinfo/python-list
Re: command-line arguments in IDLE
it does have one in activepython Thanks and Regards, Ginger - Original Message - From: Russ P. [EMAIL PROTECTED] To: python-list@python.org Sent: Wednesday, November 07, 2007 8:56 AM Subject: command-line arguments in IDLE Is it possible to pass command-line arguments when running a program in IDLE? The Run menu does not seem to provide that option. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Strange behavior of __get__ in a descriptor in IPython
Hi, I'm studying the descriptor protocol and its usage from the following document: http://users.rcn.com/python/download/Descriptor.htm There is some sample code: http://users.rcn.com/python/download/Descriptor.htm#descriptor-example that behaves in a different way on my machine than the example suggests: In [2]: a=MyClass() In [3]: a.x Retrieving var x Retrieving var x Out[3]: 1 On the other hand, in the 'plain' Python shell, it's invoked only once as expected: a=desc.MyClass() a.x Retrieving var x 10 Should I take as granted that IPython might in some cases access an attribute of an object more than once even in face of side effects, or is this a bug? Regards, Jakub Hegenbart -- http://mail.python.org/mailman/listinfo/python-list
Re: Retrieving all open applications ...
hi guys: well i still havent found a solution to this ... since i am using ubuntu 7.10, i cannot use the hammond modules ... -Ajay On 11/4/07, Ajay Deshpande [EMAIL PROTECTED] wrote: applications ... i need to retrieve all currently open applications ... thx for your help ... -Ajay On 10/31/07, Gabriel Genellina [EMAIL PROTECTED] wrote: En Tue, 30 Oct 2007 06:20:10 -0300, Ajay Deshpande [EMAIL PROTECTED] escribió: I need to retrieve all currently open applications using a python program. So my output should be a list of window handles. Is there a module which I can use? applications or windows? You can use the EnumWindows function, from the Windows API, to enumerate all top level windows. See this article from the Microsoft Knowledge Base http://support.microsoft.com/kb/183009 (the example is in VB but I hope you get the idea) Install the pywin32 extensions from Mark Hammond http://pywin32.sourceforge.net and you'll have the EnumWindows function available. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Strange behavior of __get__ in a descriptor in IPython
Jakub Hegenbart wrote: Hi, I'm studying the descriptor protocol and its usage from the following document: http://users.rcn.com/python/download/Descriptor.htm There is some sample code: http://users.rcn.com/python/download/Descriptor.htm#descriptor-example that behaves in a different way on my machine than the example suggests: In [2]: a=MyClass() In [3]: a.x Retrieving var x Retrieving var x Out[3]: 1 On the other hand, in the 'plain' Python shell, it's invoked only once as expected: a=desc.MyClass() a.x Retrieving var x 10 Should I take as granted that IPython might in some cases access an attribute of an object more than once even in face of side effects, or is this a bug? I'm not sure, but you could try and set up a counter that counts the number of accesses. But to be honest: I don't think it's a bug - this is one hell of an essential part of python, not working here would cause all kinds of troubles. Instead, I presume the printing/shell-part of IPython is responsible. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a good Python environment
On Nov 7, 3:51 am, Jens [EMAIL PROTECTED] wrote: Just wrote a mini review of three Python code editors on my blog... http://pyminer.blogspot.com/2007/11/python-code-editors.html I use PSPad or Notepad++ for quick editing, and Komodo Edit 4.2 for longer sessions. Komodo Edit is the only one with code completion - a very nice feature. You can pay $299 and get Komodo Edit, which has a debugger. I've only used Eclipse for Java programming, but there's a Python plug- in called PyDev - just haven't figured out how to install it :-( Thanks Jeff and thanks Jen. I'll take a look at these editors to see if they're good for me. -- http://mail.python.org/mailman/listinfo/python-list
Re: LaTeX tutorial updated
[EMAIL PROTECTED] schreef: On Nov 6, 12:30 pm, Nicola Talbot [EMAIL PROTECTED] wrote: Hi, I've updated my Using LaTeX to write a PhD thesis tutorial. Both PDF and HTML versions can be reached viahttp://theoval.cmp.uea.ac.uk/~nlct/latex/ I have added/deleted sections, so if you have any links to document nodes (i.e. files that are of the form node*.html) you may have to update your links. Regards Nicola Talbot very nice. 911 truckload of Explosives on the George Washington Bridge http://www.youtube.com/watch?v=J520P-MD9a0 http://video.google.com/videoplay?docid=3552214685532803163 PLONK. -- Hendrik Maryns http://tcl.sfs.uni-tuebingen.de/~hendrik/ == http://aouw.org Ask smart questions, get good answers: http://www.catb.org/~esr/faqs/smart-questions.html signature.asc Description: OpenPGP digital signature -- http://mail.python.org/mailman/listinfo/python-list
Re: Confused about closures and scoping rules
Michele Simionato a écrit : On Nov 6, 7:37 pm, Chris Mellon [EMAIL PROTECTED] wrote: On Nov 6, 2007 6:23 PM, Jean-Paul Calderone [EMAIL PROTECTED] wrote: Lots of people ask about this. The behavior you observed is the expected (by the implementors, anyway) behavior. Are there languages where closures *don't* behave like this? A closure that used a copy of the state rather than the actual state itself doesn't seem as useful. For references sake, JavaScript (the only language that a) has closures and b) I have a handy way to test with) does the same thing. Closures in Haskell's list comprehensions work as Fernando (and many others would expect). IIRC, Haskell's 'variables' are constant (ie: you cannot rebind nor mutate them). -- http://mail.python.org/mailman/listinfo/python-list
a revolutionary principle please read that
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Re: Looking for a good Python environment
On 11/6/07, Jens [EMAIL PROTECTED] wrote: Just wrote a mini review of three Python code editors on my blog... http://pyminer.blogspot.com/2007/11/python-code-editors.html I use PSPad or Notepad++ for quick editing, and Komodo Edit 4.2 for longer sessions. Komodo Edit is the only one with code completion - a very nice feature. You can pay $299 and get Komodo Edit, which has a debugger. I've only used Eclipse for Java programming, but there's a Python plug- in called PyDev - just haven't figured out how to install it :-( Have you checked: http://www.fabioz.com/pydev/manual_101_install.html ? -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a good Python environment
On Nov 6, 10:56 pm, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hey, I'm looking for a good Python environment. That is, at least an editor and a debugger, and it should run on Windows. Does anyone have any idea? I currently use Python Scripter as a lightweight editor for Windows. For project work I use Eclipse, which can be installed with PyDev and other useful plug-ins already included if you choose a suitable distribution of Easy Eclipse (http://www.easyeclipse.org/). There is a distribution specifically for Python development, and also one for LAMP, which includes a number of other components which will be of use if you are developing for the web. -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a good Python environment
On Nov 7, 1:15 pm, jwelby [EMAIL PROTECTED] wrote: On Nov 6, 10:56 pm, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hey, I'm looking for a good Python environment. That is, at least an editor and a debugger, and it should run on Windows. Does anyone have any idea? I currently use Python Scripter as a lightweight editor for Windows. For project work I use Eclipse, which can be installed with PyDev and other useful plug-ins already included if you choose a suitable distribution of Easy Eclipse (http://www.easyeclipse.org/). There is a distribution specifically for Python development, and also one for LAMP, which includes a number of other components which will be of use if you are developing for the web. Thanks jewlby, I'll check it out. -- http://mail.python.org/mailman/listinfo/python-list
Re: regular expressions
Paul McGuire wrote: On Nov 6, 11:07 am, J. Clifford Dyer [EMAIL PROTECTED] wrote: On Tue, Nov 06, 2007 at 08:49:33AM -0800, [EMAIL PROTECTED] wrote regarding regular expressions: hi i am looking for pattern in regular expreesion that replaces anything starting with and betweeen http:// until / likehttp://www.start.com/startservice/yellow/fdhttp://helo/abcdwill be replaced as p/startservice/yellow/ fdp/abcd You don't need regular expressions to do that. Look into the methods that strings have. Look at slicing. Look at len. Keep your code readable for future generations. Py help(str) Py dir(str) Py help(str.startswith) Cheers, Cliff Look again at the sample input. Some of the OP's replacement targets are not at the beginning of a word, so str.startswith wont be much help. Here are 2 solutions, one using re, one using pyparsing. -- Paul instr = anything starting with and betweeen http://; until / like http://www.start.com/startservice/yellow/ fdhttp://helo/abcd will be replaced as REPLACE_STRING = p # an re solution import re print re.sub(http://[^/]*;, REPLACE_STRING, instr) # a pyparsing solution - with handling of target strings inside quotes from pyparsing import SkipTo, replaceWith, quotedString replPattern = http://; + SkipTo(/) replPattern.setParseAction( replaceWith(REPLACE_STRING) ) replPattern.ignore(quotedString) print replPattern.transformString(instr) Prints: anything starting with and betweeen p/ like p/startservice/yellow/ fdp/abcd will be replaced as anything starting with and betweeen http://; until / like p/startservice/yellow/ fdp/abcd will be replaced as Interesting. In my email clients, they do show up at the beginning of words (thunderbird and mutt), but in your reply they aren't. I wonder if there's some funky unicode space that your computer isn't rendering Or something on my end. There were definitely spaces in his email as it appears on my computer. But if there aren't, s.startswith() is clearly not the way to go. -- http://mail.python.org/mailman/listinfo/python-list
Re: Mikhail Khodorkovsky was a Rothschild frontman and he obtained his initial capital and manipulation knowledge from there. Re: 911 operation by evil JEWS and Mossad
On Nov 7, 9:32 am, Matimus [EMAIL PROTECTED] wrote: On Nov 7, 8:35 am, [EMAIL PROTECTED] wrote: Google is a half russian jew company. We have had to make new accounts as a result of it sending us a cookie which cripples postings. The jew agents involved in this process are the ones that make deflecting replies. Their operating procedure: Deflect, when you cannot defend. Therefore, we ignore them. On Nov 7, 7:08 am, [EMAIL PROTECTED] wrote: 911 carried out by evil jews and mossadhttp://www.guba.com/watch/2000991770 911 truckload of Explosives on the George Washington Bridgehttp://www.youtube.com/watch?v=J520P-MD9a0 Benjamin Freedman's SEMINAL TESTIMONIAL SPEECHhttp://video.google.com/videoplay?docid=3552214685532803163 Benjamin Freedman speech with Slide Show (40 Minute Excerpt)http://video.google.com/videoplay?docid=3552214685532803163 Free pdf book: THE MANUFACTURE AND SALE of Saint Einstein @http://jewishracism.com/SaintEinstein.htm Author interviews @http://jewishracism.com/interviews.htm Rothschilds control half the world's wealth directly and indirectly using zionist proxies, and loyalty based on the zionist racist cult of hate and paranoia based on being caught for collective financial crimes and crimes of other categories History of the Rothschilds part 1http://www.youtube.com/watch?v=o_u2MaNg-EQ History of the Rothschilds part 2http://www.youtube.com/watch?v=o2cw-0N_Unk FBI, Where are the two Israelis with TRUCKLOAD of explosives at the George Washington Bridge ?http://www.youtube.com/watch?v=JfVumKHkcIA- Shame stooopid americans Alex Jones Interviews David Mayer de Rothschildhttp://video.google.com/videoplay?docid=4891699310483983031 The rise of the Rothschild Money Mastershttp://www.youtube.com/watch?v=ZT3GyphxJv8 Rothschilds financed APARTHEID in South Africa. They corrupted Cecil Rhodes, the son of an anglican minister, by TEACHING him evil techniques of apartheid. Apartheid was taught to him by the father zionists themselves. Rothschilds control half the world's wealth directly and indirectly using zionist proxies, and loyalty based on the zionist racist culthttp://www.youtube.com/watch?v=fXVJzXsraX4 Was Hitler's father a bastard son of Rothschilds? Did the Salomon Mayer von Rothschild perhaps rape Maria Anna Schicklgruber in dark so that she could not ever claim with certainty who the real father was? Look at his facial features, typical central asian khazar. What was the cause of Hitler's fanatical hatred for the Jews ?http://en.wikipedia.org/wiki/Alois_Hitlerhttp://www.youtube.com/watch... On Nov 6, 9:53 am, [EMAIL PROTECTED] wrote: The world has been after Bill Gates for no reason. The richest group was and remains the Zionist jew Rothschilds family who own HALF the worlds total wealth through numerous frontmen zionists. Mikhail Khodorkovsky, whom Russian President Vladimir I Putin put in jail rose from the Rothschilds money. Mayer Amschel Bauer changed his name to Rothschild or red shield. The he sent his sons to various countries in Europe and become bankers there. Using an innovative system of pigeons for communication and encoded letters, the family invested in wars that he knew were coming by staying close to the centers of powers in all the countries which they had infilterated. google video and youtube have many videos on the family. You can set aside part of your weekend for HEALTHY education so your kids can learn how to avoid being hunted by these snakes.- Hide quoted text - - Show quoted text - Even if google was a company run by anti-semitic nut jobs (your type of folk), they would be right to prevent you from posting such things in a Python, tex or physics mailing list. Hey... everybody, if you use Google groups and are getting tons of this crap, report it as abuse! I don't know if they will do anything about it, but its getting to the point where I don't want to look at comp.lang.python at work. Listen, self-hating zionazi, mossad spook, or informal zionist lobby member: He has perfect right for liberal education of the people. For the moment your jew media strangles the flow of truth. However, you flood the world with porn and debauchery. For example, I support my claim with that zionist billionaire bitch Ruth Parasol aka the parasite who has made billions by selling porn and gambling to the Christian people. He has perfect right to post well substantiated videos on 911 crime by you bastards, that you painted on others. Thermate -- http://mail.python.org/mailman/listinfo/python-list
Deep comparison of sets?
The second assertion in the following code fails:
class Value(object):
def __init__(self, value):
super(Value, self).__init__()
self.value = value
def __cmp__(self, other):
if self.value other.value: return 1
if self.value other.value: return -1
return 0
if __name__ == __main__:
v1 = Value('one')
v2 = Value('one')
assert v1 == v2
s1 = set([v1])
s2 = set([v2])
assert s1 == s2
Is there any way to compare the two sets so that __cmp__ is called (I
guess this would be called a deep comparison) rather than just
(shallowly) comparing each object in the set?
--
Daryl Spitzer
--
http://mail.python.org/mailman/listinfo/python-list
Re: os.popen does not seem to catch stdout
On Nov 7, 11:31 am, [EMAIL PROTECTED] wrote:
On Nov 7, 7:58 am, [EMAIL PROTECTED] wrote:
Hi there,
I've been banging my head against this for a day, and I can't take it
anymore. It's probably a stupid error, but I don't see where.
I'm trying to use Python to call an external program, and then catch
and process the output of that program. Seems simple enough. The
command I'm trying to run, in the test, is:
/Users/zane/svn/stress/satstress/satstress -r1.561e+06 -a5 -s45000 -
e0 -R6.709e+08 -g1.31472 -m1.8987e+27 -Q57100.1 -n0.55 -Y9.29881e
+09 -k1e+22 -Z1.19173 -z-6.293e-05 -V0.309434 -v-2.903e-05 -W1.81305 -
w-0.00418645 -U0.474847 -u-0.00276624 -C /tmp/18_tmp.gen -b 60
When I run it at my zsh prompt, I get the expected output.
If I let ss_cmd equal the above string within ipython (or the standard
python interactive interpreter):
ss_outlines = os.popen(ss_cmd).readlines()
ss_outlines contains the same output I saw when I ran the command at
my zsh prompt, one line per list element, as expected.
However, when I try doing the same thing from within a program, it
fails. ss_outlines is an empty list.
I've tried using subprocess.Popen(), and subprocess.call(), and
subprocess.check_call(), and all have yielded similar results. I did
find, however, that the return value python is getting from the
program I'm calling is different from what I get at the command line
(I get 0, python gets -11).
Does this ring a bell for anyone?
I'm using Python 2.5.1 on a Mac running OS X 10.5.
I think when you use subprocess.Popen, you need to do something set
the shell to True to get it to behave like running from a command
prompt:
subprocess.Popen('some command', shell=True)
Seehttp://docs.python.org/lib/node529.htmlfor more details.
You'll also find a fairly interesting thread on this topic here:
http://mail.python.org/pipermail/chicago/2005-November/000141.htmlhttp://mail.python.org/pipermail/python-list/2005-October/347508.html
This seems to be a recipe on it:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/440554
Mike
That's right, and I think you also want to put the whole command in a
list or tuple, one item for each arg. I don't know why though.
-Greg
--
http://mail.python.org/mailman/listinfo/python-list
Re: Strange behavior of __get__ in a descriptor in IPython
Jakub Hegenbart wrote: Hi, I'm studying the descriptor protocol and its usage from the following document: http://users.rcn.com/python/download/Descriptor.htm There is some sample code: http://users.rcn.com/python/download/Descriptor.htm#descriptor-example that behaves in a different way on my machine than the example suggests: In [2]: a=MyClass() In [3]: a.x Retrieving var x Retrieving var x Out[3]: 1 On the other hand, in the 'plain' Python shell, it's invoked only once as expected: a=desc.MyClass() a.x Retrieving var x 10 Should I take as granted that IPython might in some cases access an attribute of an object more than once even in face of side effects, or is this a bug? Yup, IPython does access attributes more than once in an attempt to determine if things can be called as functions. This behavior, however, only exists if 'autocall' is active. Here's an example: In [1]: run desc In [2]: m.x Retrieving var x Retrieving var x Out[2]: 10 In [3]: m.x Retrieving var x Retrieving var x Out[3]: 10 In [4]: autocall 0 Automatic calling is: OFF In [5]: m.x Retrieving var x Out[5]: 10 As you can see, once autocall is disabled, the double access goes away. There really is no way to provide the autocall feature without any side effects whatsoever, so if you need to avoid them at all costs, disable this feature. You can do it permanently by editing your ipythonrc file. Cheers, f -- http://mail.python.org/mailman/listinfo/python-list
regular expression syntax the same in Python, Perl and grep?
How similar is Python's re module (regular expressions) compared to Perl's and grep's regular expression syntaxes? I really hope regular expression syntax is sufficiently standardized that we don't have to learn new dialects everytime we move from one language or shell command to another. chris -- http://mail.python.org/mailman/listinfo/python-list
Re: Need help writing coroutine
Matthew Wilson wrote: I'm working on two coroutines -- one iterates through a huge stream, and emits chunks in pieces. The other routine takes each chunk, then scores it as good or bad and passes that score back to the original routine, so it can make a copy of the stream with the score appended on. I have the code working, but it just looks really ugly. Here's a vastly simplified version. One function yields some numbers, and the other function tells me if they are even or odd. def parser(): I just parse and wait for feedback. for i in 1, 2, 3, 4, 5: score = (yield i) if score: print %d passed! % i def is_odd(n): I evaluate each number n, and return True if I like it. if n and n % 2: return True def m(): try: number_generator = parser() i = None while 1: i = number_generator.send(is_odd(i)) except StopIteration: pass and here's the results when I run this: In [90]: m() 1 passed! 3 passed! 5 passed! So, clearly, the code works. But it is nonintuitive for the casual reader. I don't like the while 1 construct, I don't like manually trapping the StopIteration exception, and this line is really ugly: i = number_generator.send(is_odd(i)) I really like the old for i in parser(): deal, but I can't figure out how to use .send(...) with that. Can anyone help me pretty this up? I want to make this as intuitive as possible. Why use coroutines? def parser(score): for i in xrange(1, 6): yield i if score(i): print %d passed! % i def is_odd(n): return n % 2 def m(): for i in parser(is_odd): # Presumably do something here... pass -- Paul Hankin -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a good Python environment
Colin J. Williams [EMAIL PROTECTED] writes: Could you elaborate on lightweight please? I find PyScripter to be a powerful editor/debugger combination. What functionality does Eclipse have that PyScripter does not? While we're at it, do any of these debuggers implement a good way to debug multi-threaded Python programs? -- http://mail.python.org/mailman/listinfo/python-list
Mikhail Khodorkovsky was a Rothschild frontman and he obtained his initial capital and manipulation knowledge from there. Re: 911 operation by evil JEWS and Mossad
Google is a half russian jew company. We have had to make new accounts as a result of it sending us a cookie which cripples postings. The jew agents involved in this process are the ones that make deflecting replies. Their operating procedure: Deflect, when you cannot defend. Therefore, we ignore them. On Nov 7, 7:08 am, [EMAIL PROTECTED] wrote: 911 carried out by evil jews and mossadhttp://www.guba.com/watch/2000991770 911 truckload of Explosives on the George Washington Bridgehttp://www.youtube.com/watch?v=J520P-MD9a0 Benjamin Freedman's SEMINAL TESTIMONIAL SPEECHhttp://video.google.com/videoplay?docid=3552214685532803163 Benjamin Freedman speech with Slide Show (40 Minute Excerpt)http://video.google.com/videoplay?docid=3552214685532803163 Free pdf book: THE MANUFACTURE AND SALE of Saint Einstein @http://jewishracism.com/SaintEinstein.htm Author interviews @http://jewishracism.com/interviews.htm Rothschilds control half the world's wealth directly and indirectly using zionist proxies, and loyalty based on the zionist racist cult of hate and paranoia based on being caught for collective financial crimes and crimes of other categories History of the Rothschilds part 1http://www.youtube.com/watch?v=o_u2MaNg-EQ History of the Rothschilds part 2http://www.youtube.com/watch?v=o2cw-0N_Unk FBI, Where are the two Israelis with TRUCKLOAD of explosives at the George Washington Bridge ?http://www.youtube.com/watch?v=JfVumKHkcIA - Shame stooopid americans Alex Jones Interviews David Mayer de Rothschildhttp://video.google.com/videoplay?docid=4891699310483983031 The rise of the Rothschild Money Mastershttp://www.youtube.com/watch?v=ZT3GyphxJv8 Rothschilds financed APARTHEID in South Africa. They corrupted Cecil Rhodes, the son of an anglican minister, by TEACHING him evil techniques of apartheid. Apartheid was taught to him by the father zionists themselves. Rothschilds control half the world's wealth directly and indirectly using zionist proxies, and loyalty based on the zionist racist culthttp://www.youtube.com/watch?v=fXVJzXsraX4 Was Hitler's father a bastard son of Rothschilds? Did the Salomon Mayer von Rothschild perhaps rape Maria Anna Schicklgruber in dark so that she could not ever claim with certainty who the real father was? Look at his facial features, typical central asian khazar. What was the cause of Hitler's fanatical hatred for the Jews ?http://en.wikipedia.org/wiki/Alois_Hitlerhttp://www.youtube.com/watch?v=TihCM_q59c8 On Nov 6, 9:53 am, [EMAIL PROTECTED] wrote: The world has been after Bill Gates for no reason. The richest group was and remains the Zionist jew Rothschilds family who own HALF the worlds total wealth through numerous frontmen zionists. Mikhail Khodorkovsky, whom Russian President Vladimir I Putin put in jail rose from the Rothschilds money. Mayer Amschel Bauer changed his name to Rothschild or red shield. The he sent his sons to various countries in Europe and become bankers there. Using an innovative system of pigeons for communication and encoded letters, the family invested in wars that he knew were coming by staying close to the centers of powers in all the countries which they had infilterated. google video and youtube have many videos on the family. You can set aside part of your weekend for HEALTHY education so your kids can learn how to avoid being hunted by these snakes.- Hide quoted text - - Show quoted text - -- http://mail.python.org/mailman/listinfo/python-list
Re: os.popen does not seem to catch stdout
On Nov 7, 7:58 am, [EMAIL PROTECTED] wrote:
Hi there,
I've been banging my head against this for a day, and I can't take it
anymore. It's probably a stupid error, but I don't see where.
I'm trying to use Python to call an external program, and then catch
and process the output of that program. Seems simple enough. The
command I'm trying to run, in the test, is:
/Users/zane/svn/stress/satstress/satstress -r1.561e+06 -a5 -s45000 -
e0 -R6.709e+08 -g1.31472 -m1.8987e+27 -Q57100.1 -n0.55 -Y9.29881e
+09 -k1e+22 -Z1.19173 -z-6.293e-05 -V0.309434 -v-2.903e-05 -W1.81305 -
w-0.00418645 -U0.474847 -u-0.00276624 -C /tmp/18_tmp.gen -b 60
When I run it at my zsh prompt, I get the expected output.
If I let ss_cmd equal the above string within ipython (or the standard
python interactive interpreter):
ss_outlines = os.popen(ss_cmd).readlines()
ss_outlines contains the same output I saw when I ran the command at
my zsh prompt, one line per list element, as expected.
However, when I try doing the same thing from within a program, it
fails. ss_outlines is an empty list.
I've tried using subprocess.Popen(), and subprocess.call(), and
subprocess.check_call(), and all have yielded similar results. I did
find, however, that the return value python is getting from the
program I'm calling is different from what I get at the command line
(I get 0, python gets -11).
Does this ring a bell for anyone?
I'm using Python 2.5.1 on a Mac running OS X 10.5.
I think when you use subprocess.Popen, you need to do something set
the shell to True to get it to behave like running from a command
prompt:
subprocess.Popen('some command', shell=True)
See http://docs.python.org/lib/node529.html for more details.
You'll also find a fairly interesting thread on this topic here:
http://mail.python.org/pipermail/chicago/2005-November/000141.html
http://mail.python.org/pipermail/python-list/2005-October/347508.html
This seems to be a recipe on it:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/440554
Mike
--
http://mail.python.org/mailman/listinfo/python-list
Re: subprocess chokes on spaces in path
On Nov 6, 2:48 pm, Gabriel Genellina [EMAIL PROTECTED] wrote: Use a list of arguments [antiword, word_doc] and let subprocess handle the spaces the right way. Got it working. Thank you both. p = subprocess.Popen([antiword, word_doc], stdout=subprocess.PIPE) doc_text = p.stdout.read() rd -- http://mail.python.org/mailman/listinfo/python-list
Re: What colour model does the image use in PIL
Johny [EMAIL PROTECTED] writes: I would need to apply a threshold value to the image, where everything above a certain brightness level becomes white, and everything below the level becomes black. How can I do that with PIL? I think you're supposed to use the point method, but I don't have an example ready. See http://mail.python.org/pipermail/image-sig/2004-November/003019.html for a hint. -- http://mail.python.org/mailman/listinfo/python-list
Re: finding bluetooth serial port
On 2007-11-07, Paul Sijben [EMAIL PROTECTED] wrote: To automate/ease configuration in my app I am trying to find out to which serial port a certain bluetooth device is connected. With pybluez I can find out which bluetooth devices I have, but it will not tell me the serial port they are mapped to. Is there a way to figure this out from python? (I am insterested in the platforms WinXP and linux primarily) Under linux, the right thing to do is to write a udev rule so that the device has a predictiable name (or symlink). http://reactivated.net/writing_udev_rules.html If you don't want to write a udev rule, you'll need to bascally re-implement udev by parsing the sysfs directory tree until you find the device you're looking for. Here's how to do it for USB (I assume BT works in a similar fashion). Let's say I know the device has vendor ID 0403, product ID 6001, and serial number 123456. I search through the directories under /sys/devices until I find a directory containing three files named idProduct idVendor serial Which contain the three strings I'm looking for. In this case: # cat /sys/devices/pci:00/:00:10.3/usb5/5-1/idVendor 0403 # cat /sys/devices/pci:00/:00:10.3/usb5/5-1/idProduct 6001 # cat /sys/devices/pci:00/:00:10.3/usb5/5-1/serial 12345678 Once you've found that directory, you can look at the other entries to find out whatever you want to know about the device: /sys/devices/pci:00/:00:10.3/usb5/5-1/ |-- 5-1:1.0 | |-- bAlternateSetting | |-- bInterfaceClass | |-- bInterfaceNumber | |-- bInterfaceProtocol | |-- bInterfaceSubClass | |-- bNumEndpoints | |-- bus - ../../../../../../bus/usb | |-- driver - ../../../../../../bus/usb/drivers/ftdi_sio | |-- ep_02 - ../../../../../../devices/pci:00/:00:10.3/usb5/5-1/5-1:1.0/usbdev5.42_ep02 | |-- ep_81 - ../../../../../../devices/pci:00/:00:10.3/usb5/5-1/5-1:1.0/usbdev5.42_ep81 | |-- interface | |-- modalias | |-- power | | |-- state | | `-- wakeup | |-- subsystem - ../../../../../../bus/usb | |-- ttyUSB0 | | |-- bus - ../../../../../../../bus/usb-serial | | |-- driver - ../../../../../../../bus/usb-serial/drivers/ftdi_sio | | |-- power | | | |-- state | | | `-- wakeup | | |-- subsystem - ../../../../../../../bus/usb-serial | | |-- tty:ttyUSB0 - ../../../../../../../class/tty/ttyUSB0 | | `-- uevent | |-- uevent | |-- usb_endpoint:usbdev5.42_ep02 - ../../../../../../devices/pci:00/:00:10.3/usb5/5-1/5-1:1.0/usbdev5.42_ep02 | |-- usb_endpoint:usbdev5.42_ep81 - ../../../../../../devices/pci:00/:00:10.3/usb5/5-1/5-1:1.0/usbdev5.42_ep81 | |-- usbdev5.42_ep02 | | |-- bEndpointAddress | | |-- bInterval | | |-- bLength | | |-- bmAttributes | | |-- dev | | |-- device - ../../../../../../../devices/pci:00/:00:10.3/usb5/5-1/5-1:1.0 | | |-- direction | | |-- interval | | |-- power | | | |-- state | | | `-- wakeup | | |-- subsystem - ../../../../../../../class/usb_endpoint | | |-- type | | |-- uevent | | `-- wMaxPacketSize | `-- usbdev5.42_ep81 | |-- bEndpointAddress | |-- bInterval | |-- bLength | |-- bmAttributes | |-- dev | |-- device - ../../../../../../../devices/pci:00/:00:10.3/usb5/5-1/5-1:1.0 | |-- direction | |-- interval | |-- power | | |-- state | | `-- wakeup | |-- subsystem - ../../../../../../../class/usb_endpoint | |-- type | |-- uevent | `-- wMaxPacketSize |-- bConfigurationValue |-- bDeviceClass |-- bDeviceProtocol |-- bDeviceSubClass |-- bMaxPacketSize0 |-- bMaxPower |-- bNumConfigurations |-- bNumInterfaces |-- bcdDevice |-- bmAttributes |-- bus - ../../../../../bus/usb |-- configuration |-- devnum |-- driver - ../../../../../bus/usb/drivers/usb |-- ep_00 - ../../../../../devices/pci:00/:00:10.3/usb5/5-1/usbdev5.42_ep00 |-- event_char |-- idProduct |-- idVendor |-- manufacturer |-- maxchild |-- power | |-- state | `-- wakeup |-- product |-- serial |-- speed |-- subsystem - ../../../../../bus/usb |-- uevent |-- usb_device:usbdev5.42 - ../../../../../class/usb_device/usbdev5.42 |-- usb_endpoint:usbdev5.42_ep00 - ../../../../../devices/pci:00/:00:10.3/usb5/5-1/usbdev5.42_ep00 |-- usbdev5.42_ep00 | |-- bEndpointAddress | |-- bInterval | |-- bLength | |-- bmAttributes | |-- dev | |-- device - ../../../../../../devices/pci:00/:00:10.3/usb5/5-1 | |-- direction | |-- interval | |-- power | | |-- state | | `-- wakeup | |-- subsystem - ../../../../../../class/usb_endpoint | |-- type | |-- uevent | `-- wMaxPacketSize `-- version If you want to search by something other than the product id, vendor id and serial number, then pick some other of the files above that will have identifiable contents and look for that. -- Grant Edwards
Re: Looking for a good Python environment
[EMAIL PROTECTED] wrote: Hey, I'm looking for a good Python environment. That is, at least an editor and a debugger, and it should run on Windows. Does anyone have any idea? I like ERIC. You can get it at http://www.die-offenbachs.de/eric/eric4-download.html Or just download and install PyQt4, which includes it: http://www.riverbankcomputing.com/Downloads/PyQt4/GPL/PyQt-Py2.5-gpl-4.3.1-1.exe There's also a list of Python IDEs on the Python wiki: http://wiki.python.org/moin/IntegratedDevelopmentEnvironments -- Gerhard -- http://mail.python.org/mailman/listinfo/python-list
Re: manually cutting a picture
Thanks that is a pretty good idea one thought that i came up with (honestly the only one that made sense) was to give the user a type of cookie cutter approach. where they would be presented with a selection of premade piece's that could divide the picture that they chose to how ever many pieces that they wanted. but the problem with that is the possibility to have little shrivels of the image if they did not cut the picture correctly. But you gave me another look on how to accomplish this... -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a good Python environment
jwelby wrote: On Nov 6, 10:56 pm, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hey, I'm looking for a good Python environment. That is, at least an editor and a debugger, and it should run on Windows. Does anyone have any idea? I currently use Python Scripter as a lightweight editor for Windows. Could you elaborate on lightweight please? I find PyScripter to be a powerful editor/debugger combination. What functionality does Eclipse have that PyScripter does not? Colin W. For project work I use Eclipse, which can be installed with PyDev and other useful plug-ins already included if you choose a suitable distribution of Easy Eclipse (http://www.easyeclipse.org/). There is a distribution specifically for Python development, and also one for LAMP, which includes a number of other components which will be of use if you are developing for the web. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to use list as key of dictionary?
Duncan Booth wrote: Better, just don't try passing it a recursive data structure. a = [1, 2, 3] a[1] = a a [1, [...], 3] tupleize(a) Traceback (most recent call last): File pyshell#5, line 1, in module tupleize(a) File pyshell#1, line 5, in tupleize return tuple(tupleize(thing) for thing in non_tuple) File pyshell#1, line 5, in genexpr return tuple(tupleize(thing) for thing in non_tuple) File pyshell#1, line 5, in tupleize return tuple(tupleize(thing) for thing in non_tuple) File pyshell#1, line 5, in genexpr return tuple(tupleize(thing) for thing in non_tuple) File pyshell#1, line 5, in tupleize return tuple(tupleize(thing) for thing in non_tuple) ... Your'e a fiend! ;) /W -- http://mail.python.org/mailman/listinfo/python-list
Re: a simple tcp server sample
On Nov 7, 1:54 pm, Tzury Bar Yochay [EMAIL PROTECTED] wrote: hi, the following sample (from docs.python.org) is a server that can actually serve only single client at a time. In my case I need a simple server that can serve more than one client. I couldn't find an example on how to do that and be glad to get a hint. Thanks in advance import socket HOST = '127.0.0.1' # Symbolic name meaning the local host PORT = 50007# Arbitrary non-privileged port s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind((HOST, PORT)) s.listen(1) conn, addr = s.accept() print 'Connected by', addr while 1: data = conn.recv(1024) if not data: break conn.send(data) conn.close() POE -- http://mail.python.org/mailman/listinfo/python-list
a simple tcp server sample
hi, the following sample (from docs.python.org) is a server that can actually serve only single client at a time. In my case I need a simple server that can serve more than one client. I couldn't find an example on how to do that and be glad to get a hint. Thanks in advance import socket HOST = '127.0.0.1' # Symbolic name meaning the local host PORT = 50007# Arbitrary non-privileged port s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind((HOST, PORT)) s.listen(1) conn, addr = s.accept() print 'Connected by', addr while 1: data = conn.recv(1024) if not data: break conn.send(data) conn.close() -- http://mail.python.org/mailman/listinfo/python-list
Re: LaTeX tutorial updated [OT]
that looks like a great latex resource. maybe you should post it to latex users groups. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is pyparsing really a recursive descent parser?
Neil Cerutti [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On 2007-11-05, Just Another Victim of the Ambient Morality [EMAIL PROTECTED] wrote: Kay Schluehr [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I'm not sure one needs to start again with a naive approach just to avoid any parser theory. For a user of a parser it is quite important whether she has to wait 50 seconds for a parse to run or 50 milliseconds. I don't like to compromise speed for implementation simplicity here. This attitude is all too prevalent among computer professionals... Of course it's a useful thing to shield users from the intricacies of parser theory! Just as much as it is useful to shield drivers from needing automotive engineering or software users from programing. How many people have come to this newsgroup asking about anomalous pyparsing behaviour, despite their grammars being mathematically correct. You might be interested in the Early parsing algorithm. It is more efficient than the naive approach used in your prototype, and still handles ambiguous grammars. I think I might be interested in this algorithm, thank you! There is a Python module SPARK that provides generic classes for building small language compilers using an Early parser, and I was able to get it to parse your ambiguous grammar without trouble. It is not as convenient or as well documented as PyParsing, but the parsing algorithm provides the power you're looking for. It might serve as a backend for the library you're currently working on. http://www.cpsc.ucalgary.ca/~aycock/spark/ You know, I tried this thing but, for the life of me, I can't figure out how to use it and the few tutorials out there are less than illuminating... -- http://mail.python.org/mailman/listinfo/python-list
Need help writing coroutine
I'm working on two coroutines -- one iterates through a huge stream, and emits chunks in pieces. The other routine takes each chunk, then scores it as good or bad and passes that score back to the original routine, so it can make a copy of the stream with the score appended on. I have the code working, but it just looks really ugly. Here's a vastly simplified version. One function yields some numbers, and the other function tells me if they are even or odd. def parser(): I just parse and wait for feedback. for i in 1, 2, 3, 4, 5: score = (yield i) if score: print %d passed! % i def is_odd(n): I evaluate each number n, and return True if I like it. if n and n % 2: return True def m(): try: number_generator = parser() i = None while 1: i = number_generator.send(is_odd(i)) except StopIteration: pass and here's the results when I run this: In [90]: m() 1 passed! 3 passed! 5 passed! So, clearly, the code works. But it is nonintuitive for the casual reader. I don't like the while 1 construct, I don't like manually trapping the StopIteration exception, and this line is really ugly: i = number_generator.send(is_odd(i)) I really like the old for i in parser(): deal, but I can't figure out how to use .send(...) with that. Can anyone help me pretty this up? I want to make this as intuitive as possible. TIA Matt -- http://mail.python.org/mailman/listinfo/python-list
Re: a simple tcp server sample
On Wed, 07 Nov 2007 18:54:39 -, Tzury Bar Yochay [EMAIL PROTECTED] wrote: hi, the following sample (from docs.python.org) is a server that can actually serve only single client at a time. In my case I need a simple server that can serve more than one client. I couldn't find an example on how to do that and be glad to get a hint. Thanks in advance import socket HOST = '127.0.0.1' # Symbolic name meaning the local host PORT = 50007# Arbitrary non-privileged port s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind((HOST, PORT)) s.listen(1) conn, addr = s.accept() print 'Connected by', addr while 1: data = conn.recv(1024) if not data: break conn.send(data) conn.close() Even simpler, use Twisted: from twisted.internet.protocol import ServerFactory, Protocol from twisted.internet import reactor HOST = '127.0.0.1' # Symbolic name meaning the local host PORT = 50007# Arbitrary non-privileged port class Echo(Protocol): def connectionMade(self): print 'Connection from', self.transport.getPeer() def dataReceived(self, bytes): self.transport.write(bytes) factory = ServerFactory() factory.protocol = Echo reactor.listenTCP(HOST, PORT, factory) reactor.run() This doesn't have the bug your version has (where it randomly drops some data on the floor) and handles multiple clients. Check it out: http://twistedmatrix.com/ Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: python tutorial on a single html page?
In article [EMAIL PROTECTED], BartlebyScrivener [EMAIL PROTECTED] wrote: Is the main Python tutorial posted on single searchable page somewhere? As opposed to browsing the index and clicking NEXT etc. For completeness (though a bit late), I'll mention that Google can search a group of web pages with: site:docs.python.org/tut/ search terms TonyN.:'[EMAIL PROTECTED] ' http://www.georgeanelson.com/ -- http://mail.python.org/mailman/listinfo/python-list
911 operation by evil JEWS and Mossad
911 carried out by evil jews and mossad http://www.guba.com/watch/2000991770 911 truckload of Explosives on the George Washington Bridge http://www.youtube.com/watch?v=J520P-MD9a0 Benjamin Freedman's SEMINAL TESTIMONIAL SPEECH http://video.google.com/videoplay?docid=3552214685532803163 Benjamin Freedman speech with Slide Show (40 Minute Excerpt) http://video.google.com/videoplay?docid=3552214685532803163 Free pdf book: THE MANUFACTURE AND SALE of Saint Einstein @ http://jewishracism.com/SaintEinstein.htm Author interviews @ http://jewishracism.com/interviews.htm Rothschilds control half the world's wealth directly and indirectly using zionist proxies, and loyalty based on the zionist racist cult of hate and paranoia based on being caught for collective financial crimes and crimes of other categories History of the Rothschilds part 1 http://www.youtube.com/watch?v=o_u2MaNg-EQ History of the Rothschilds part 2 http://www.youtube.com/watch?v=o2cw-0N_Unk FBI, Where are the two Israelis with TRUCKLOAD of explosives at the George Washington Bridge ? http://www.youtube.com/watch?v=JfVumKHkcIA - Shame stooopid americans Alex Jones Interviews David Mayer de Rothschild http://video.google.com/videoplay?docid=4891699310483983031 The rise of the Rothschild Money Masters http://www.youtube.com/watch?v=ZT3GyphxJv8 Rothschilds financed APARTHEID in South Africa. They corrupted Cecil Rhodes, the son of an anglican minister, by TEACHING him evil techniques of apartheid. Apartheid was taught to him by the father zionists themselves. Rothschilds control half the world's wealth directly and indirectly using zionist proxies, and loyalty based on the zionist racist cult http://www.youtube.com/watch?v=fXVJzXsraX4 Was Hitler's father a bastard son of Rothschilds? Did the Salomon Mayer von Rothschild perhaps rape Maria Anna Schicklgruber in dark so that she could not ever claim with certainty who the real father was? Look at his facial features, typical central asian khazar. What was the cause of Hitler's fanatical hatred for the Jews ? http://en.wikipedia.org/wiki/Alois_Hitler http://www.youtube.com/watch?v=TihCM_q59c8 On Nov 6, 9:53 am, [EMAIL PROTECTED] wrote: The world has been after Bill Gates for no reason. The richest group was and remains the Zionist jew Rothschilds family who own HALF the worlds total wealth through numerous frontmen zionists. Mikhail Khodorkovsky, whom Russian President Vladimir I Putin put in jail rose from the Rothschilds money. Mayer Amschel Bauer changed his name to Rothschild or red shield. The he sent his sons to various countries in Europe and become bankers there. Using an innovative system of pigeons for communication and encoded letters, the family invested in wars that he knew were coming by staying close to the centers of powers in all the countries which they had infilterated. google video and youtube have many videos on the family. You can set aside part of your weekend for HEALTHY education so your kids can learn how to avoid being hunted by these snakes. -- http://mail.python.org/mailman/listinfo/python-list
os.popen does not seem to catch stdout
Hi there, I've been banging my head against this for a day, and I can't take it anymore. It's probably a stupid error, but I don't see where. I'm trying to use Python to call an external program, and then catch and process the output of that program. Seems simple enough. The command I'm trying to run, in the test, is: /Users/zane/svn/stress/satstress/satstress -r1.561e+06 -a5 -s45000 - e0 -R6.709e+08 -g1.31472 -m1.8987e+27 -Q57100.1 -n0.55 -Y9.29881e +09 -k1e+22 -Z1.19173 -z-6.293e-05 -V0.309434 -v-2.903e-05 -W1.81305 - w-0.00418645 -U0.474847 -u-0.00276624 -C /tmp/18_tmp.gen -b 60 When I run it at my zsh prompt, I get the expected output. If I let ss_cmd equal the above string within ipython (or the standard python interactive interpreter): ss_outlines = os.popen(ss_cmd).readlines() ss_outlines contains the same output I saw when I ran the command at my zsh prompt, one line per list element, as expected. However, when I try doing the same thing from within a program, it fails. ss_outlines is an empty list. I've tried using subprocess.Popen(), and subprocess.call(), and subprocess.check_call(), and all have yielded similar results. I did find, however, that the return value python is getting from the program I'm calling is different from what I get at the command line (I get 0, python gets -11). Does this ring a bell for anyone? I'm using Python 2.5.1 on a Mac running OS X 10.5. -- http://mail.python.org/mailman/listinfo/python-list
Re: regular expression syntax the same in Python, Perl and grep?
2007/11/7, Chris Mellon [EMAIL PROTECTED]: On Nov 7, 2007 12:11 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: How similar is Python's re module (regular expressions) compared to Perl's and grep's regular expression syntaxes? Somewhat. I really hope regular expression syntax is sufficiently standardized that we don't have to learn new dialects everytime we move from one language or shell command to another. I forgot where I read that so can't back it up but: Unices are just a collection of different dialects of regex I think the same is true for about every implementation of regex you can find. In theory it _should_ be same. Then again, so should SQL but I bet that it's actually quite hard to find a single statement that you can literally execute it on all DB servers (major ones). -- http://noneisyours.marcher.name http://feeds.feedburner.com/NoneIsYours -- http://mail.python.org/mailman/listinfo/python-list
Re: Deep comparison of sets?
On Wed, 07 Nov 2007 10:22:27 -0800, Daryl Spitzer wrote: def __cmp__(self, other): if self.value other.value: return 1 if self.value other.value: return -1 return 0 This can be written a bit shorter:: def __cmp__(self, other): return cmp(self.value, other.value) Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
Re: regular expression syntax the same in Python, Perl and grep?
On Nov 7, 2007 12:11 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: How similar is Python's re module (regular expressions) compared to Perl's and grep's regular expression syntaxes? Somewhat. I really hope regular expression syntax is sufficiently standardized that we don't have to learn new dialects everytime we move from one language or shell command to another. It isn't, at least for non-trivial use of regexps. -- http://mail.python.org/mailman/listinfo/python-list
command-line arguments in IDLE
Is it possible to pass command-line arguments when running a program in IDLE? The Run menu does not seem to provide that option. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Retrieving all open applications ...
En Wed, 07 Nov 2007 06:36:49 -0300, Ajay Deshpande [EMAIL PROTECTED] escribió: well i still havent found a solution to this ... since i am using ubuntu 7.10, i cannot use the hammond modules ... As you said list of window handles I thought you were working on Windows. Try with: man ps Use the subprocess module to call ps with your desired options. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Deep comparison of sets?
Daryl Spitzer schrieb:
The second assertion in the following code fails:
class Value(object):
def __init__(self, value):
super(Value, self).__init__()
self.value = value
def __cmp__(self, other):
if self.value other.value: return 1
if self.value other.value: return -1
return 0
if __name__ == __main__:
v1 = Value('one')
v2 = Value('one')
assert v1 == v2
s1 = set([v1])
s2 = set([v2])
assert s1 == s2
Is there any way to compare the two sets so that __cmp__ is called (I
guess this would be called a deep comparison) rather than just
(shallowly) comparing each object in the set?
You need to overload the __hash__-method as well.
def __hash__(self):
return hash(self.value)
Diez
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Re: LaTeX tutorial updated [OT]
On Wed, 07 Nov 2007 16:23:56 +0900, Byung-Hee HWANG [EMAIL PROTECTED] wrote: On Wed, 2007-11-07 at 00:10 +, [EMAIL PROTECTED] wrote: On Nov 6, 12:30 pm, Nicola Talbot [EMAIL PROTECTED] wrote: Hi, I've updated my Using LaTeX to write a PhD thesis tutorial. Both PDF My understanding is that the correct nomenclature is, Master's thesis, and, PhD dissertation. -- http://mail.python.org/mailman/listinfo/python-list
Re: Help for Otsu implementation from C
On Sep 22, 6:24 pm, azrael [EMAIL PROTECTED] wrote: Thanks Man, I did it. It works fantastic. Can you please posted the working Python implementation of the Otsu filter . Thanks L. -- http://mail.python.org/mailman/listinfo/python-list
Re: global name is not defined
Thanks, seems to be fixed with importing MySQLdb, menus, EMR_main, etc in the Name_find module. Is there a better way to do things? I thought I was avoiding using global variables by putting the shared ones in their own module. Thanks for the help. Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: What colour model does the image use in PIL
Johny [EMAIL PROTECTED] writes:
I use PIL and with it im.getpixel((x,y)) to find out the colour of a
pixel. But how can I find out in which color model the the return
value is?
im.mode gives you a string such as 'RGBA' or 'CMYK'. im.getbands()
returns a tuple such as ('R', 'G', 'B', 'A').
--
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Re: a simple tcp server sample
On Nov 7, 2007, at 12:54 PM, Tzury Bar Yochay wrote: hi, the following sample (from docs.python.org) is a server that can actually serve only single client at a time. In my case I need a simple server that can serve more than one client. I couldn't find an example on how to do that and be glad to get a hint. Thanks in advance That's when it stops being simple. You'll need to spawn threads or fork off separate processes to do that. Erik Jones Software Developer | Emma® [EMAIL PROTECTED] 800.595.4401 or 615.292.5888 615.292.0777 (fax) Emma helps organizations everywhere communicate market in style. Visit us online at http://www.myemma.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Populating huge data structures from disk
On Nov 6, 2:42 pm, Michael Bacarella [EMAIL PROTECTED] wrote: Note that you're not doing the same thing at all. You're pre-allocating the array in the C code, but not in Python (and I don't think you can). Is there some reason you're growing a 8 gig array 8 bytes at a time? They spend about the same amount of time in system, but Python spends 4.7x as much CPU in userland as C does. Python has to grow the array. It's possible that this is tripping a degenerate case in the gc behavior also (I don't know if array uses PyObjects for its internal buffer), and if it is you'll see an improvement by disabling GC. That does explain why it's consuming 4.7x as much CPU. x = lengthy_number_crunching() magic.save_mmap(/important-data) and in the application do... x = magic.mmap(/important-data) magic.mlock(/important-data) and once the mlock finishes bringing important-data into RAM, at the speed of your disk I/O subsystem, all accesses to x will be hits against RAM. You've basically described what mmap does, as far as I can tell. Have you tried just mmapping the file? Yes, that would be why my fantasy functions have 'mmap' in their names. However, in C you can mmap arbitrarily complex data structures whereas in Python all you can mmap without transformations is an array or a string. I didn't say this earlier, but I do need to pull more than arrays and strings into RAM. Not being able to pre-allocate storage is a big loser for this approach. I don't see how needing transformations is an issue, as it's just a constant overhead (in big-O terms.) The bigger concern is if what your storing is self contained (numbers, strings) or if it contains inter-object references. The latter may require you to translate between indexes and temporary handle objects. This in turn may require some sort of garbage collection scheme (refcounting, tracing). Note that the addresses of the mmap'd region can change each time the program runs, so even in C you may need to use indexes. (You may also want to eliminate C's padding, although that would make the objects not directly accessible (due to hardware alignment requirements.)) Having a separate process (or thread) that occasionally pokes each page (as suggested by Paul Rubin) seems like the cleanest way to ensure they stay hot. One pass during startup is insufficient, as unused portions of a long-running program may get swapped out. Also note that poking need only touch 1 byte per page, much cheaper than copying the entire page (so long as the page is already loaded from disk.) -- Adam Olsen, aka Rhamphoryncus -- http://mail.python.org/mailman/listinfo/python-list
Re: os.popen does not seem to catch stdout
On Wed, 07 Nov 2007 18:35:51 +, kyosohma wrote: I've never had to put the command into a list or tuple...but you're welcome to try it that way. You don't *have* to but if you do the module takes care of quoting the arguments if necessary. Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
What colour model does the image use in PIL
I use PIL and with it im.getpixel((x,y)) to find out the colour of a pixel. But how can I find out in which color model the the return value is? For example for png picture format im.getpixel((20,50)) gives the result 60. What does the value mean? Is it possible to find out the RGB model values? Thank you for help. L. -- http://mail.python.org/mailman/listinfo/python-list
Re: manually cutting a picture
Amit Khemka wrote: Cut image by m X m grid (bigger the m, the more varied shapes you would be able to generate), this will give you m*m square pieces. With each piece store a vector which represents the polygon (say by storing co-ordinates of the corners). Now visualize this set of pieces as a graph with an edge between adjacent pieces. Now depending on the final number of pieces that you want to generate (N), you traverse the graph and for each node: 1. Merge a node with a randomly selected neighbor Repeat step 1 until you have N pieces left Doesn't that have the fairly likely possibility of ending up with 1 very large piece and n-1 very small pieces? If you iterate over the graph merging with a neighbour at random, then each node has a 50% chance of being merged with a node that has already been merged. *-*-* *-* | | | * *-*-* * * * * * * etc. could be the result of the first 8 steps. Already every node touched is part of the same group. Or have I misunderstood your algorithm? A random region growing approach might work, with seeds scattered evenly throughout the image. That would be prone to orphaning squares inside larger objects, but that may be what you want. It would not be easy to program. What I would do is break the graph in to m*m squares, then for each edge, randomly select a means of joining them - blob sticking out of piece A, or hole for blob in piece A; move hole/blob along the edge by a random amount, move edge in or out to get different sized pieces. For each square this was applied to, it would apply the reverse sizing to the square touching on that edge. I'd restrict in/out movement of edges and movement of blob/hole along the edge to a specific range, to avoid problems where the blob of one square is stuck on the furthest corner, but the piece touching that corner has had its edge moved in too far so the blob would overlap two squares. Let me know how it goes, it sounds like a fun problem. Cameron. -- http://mail.python.org/mailman/listinfo/python-list
Re: a simple tcp server sample
Tzury Bar Yochay [EMAIL PROTECTED] writes: In my case I need a simple server that can serve more than one client. I couldn't find an example on how to do that and be glad to get a hint. See the SocketServer module, both the documentation and the source code. -- http://mail.python.org/mailman/listinfo/python-list
Re: List to Tuple and Tuple to List?
Davy wrote: Hi all, I am curious about whether there is function to fransform pure List to pure Tuple and pure Tuple to pure List? Isn't that just the same topic as in your other thread? I think it is somewhat unfriendly that you ignore that one. It makes me feel that you see this group as some sort of helpdesk. Which it isn't (strictly). /W -- http://mail.python.org/mailman/listinfo/python-list
manually cutting a picture
well so far the problem for me is not the linking i have a kinda good code for that. here is a little snippet of the idea that i used on an old version that split the picture without input from the user. #this code defines that the edges have a place on the grid. def join_point(self, type): orect = self.orig_image.get_rect() if type == north: return ((orec.width/2, 20)) but it relies on the fact that the image is on a grid then checks to see where the puzzle piece is on the grid. then to actualy link the piece i had this def draw_connection(self, other) if self.north == other: spt = north opt = south pass which then would check several draw points that are defined in depth. which i am sure that it can be modified with a little work.. my main problem is getting the user input on what the size shape and yata yata of the puzzle piece should be. sorry if i didn't make sense before. -- http://mail.python.org/mailman/listinfo/python-list
Re: What colour model does the image use in PIL
On Nov 7, 2:53 pm, Hrvoje Niksic [EMAIL PROTECTED] wrote:
Johny [EMAIL PROTECTED] writes:
I use PIL and with it im.getpixel((x,y)) to find out the colour of a
pixel. But how can I find out in which color model the the return
value is?
im.mode gives you a string such as 'RGBA' or 'CMYK'. im.getbands()
returns a tuple such as ('R', 'G', 'B', 'A').
Thank you for your help.
Can you please help me once more?
Now I would need to apply a threshold value to the image, where
everything above a certain brightness level becomes white, and
everything below the level becomes black.
How can I do that with PIL?
Thank you
L
--
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Re: Confused about closures and scoping rules
On Nov 6, 5:37 pm, Chris Mellon [EMAIL PROTECTED] wrote: On Nov 6, 2007 6:23 PM, Jean-Paul Calderone [EMAIL PROTECTED] wrote: On Tue, 06 Nov 2007 17:07:47 -0700, Fernando Perez [EMAIL PROTECTED] wrote: [snip] This struck me as counterintuitive, but I couldn't find anything in the official docs indicating what the expected behavior should be. Any feedback/enlightenment would be welcome. This problem appeared deep inside a complicated code and it took me almost two days to track down what was going on... Lots of people ask about this. The behavior you observed is the expected (by the implementors, anyway) behavior. Are there languages where closures *don't* behave like this? A closure that used a copy of the state rather than the actual state itself doesn't seem as useful. For references sake, JavaScript (the only language that a) has closures and b) I have a handy way to test with) does the same thing. I've never needed to repeatedly modify closure variables. However, I may not set them until after the function is defined. A simple example is that of a recursive function: def foo(): def bar(): bar() # useful work omitted return bar Obviously, bar can't be set until after the function object is created. Showing changes also matches the behaviour of globals, which is a good thing IMO. -- Adam Olsen, aka Rhamphoryncus -- http://mail.python.org/mailman/listinfo/python-list
Re: Is pyparsing really a recursive descent parser?
Neil Cerutti [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On 2007-11-07, Just Another Victim of the Ambient Morality [EMAIL PROTECTED] wrote: Neil Cerutti [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] You might be interested in the Early parsing algorithm. It is more efficient than the naive approach used in your prototype, and still handles ambiguous grammars. I'll take this opportunity to correct my misspelling. It's Earley. I think I might be interested in this algorithm, thank you! http://www.cpsc.ucalgary.ca/~aycock/spark/ You know, I tried this thing but, for the life of me, I can't figure out how to use it and the few tutorials out there are less than illuminating... I'll send you the code I composed. The tricky part of Spark is the Token and AST classes you have to use. A type used as a token class is required to provide a __cmp__ function that behaves in the following confounding manner: class Token(object): def __cmp__(self, o): return cmp(self.type, o) If you attempt to use a list, string or a tuple as token, it just barfs. AST's are required to provide an even weirder interface. In effect, you have to write badly designed wrappers around tuples and lists, respectively to take advantage of the generic classes. Go to the examples directory of the distribution to find working versions of these stupid classes. Once you get over that hurdle it becomes easier. Be sure to provide your Parser and Scanner classes with an error method to prevent the library from raising SystemExit(!) on errors. Scanner classes are also required to override the t_default method to prevent this mishap. In short, it hasn't really evovled into a user-friendly package yet. Thank you. How is it that I seem to be the only one in the market for a correct parser? Earley has a runtine of O(n^3) in the worst case and O(n^2) typically. I have trouble believing that everyone else in the world has such intense run-time requirements that they're willing to forego correctness. Why can't I find a pyparsing-esque library with this implementation? I'm tempted to roll my own except that it's a fairly complicated algorithm and I don't really understand how it's any more efficient than the naive approach... -- http://mail.python.org/mailman/listinfo/python-list
Re: LaTeX tutorial updated [OT]
On Wed, 07 Nov 2007 09:00:12 -0800, John DeRosa [EMAIL PROTECTED] wrote: On Wed, 07 Nov 2007 16:23:56 +0900, Byung-Hee HWANG [EMAIL PROTECTED] wrote: On Wed, 2007-11-07 at 00:10 +, [EMAIL PROTECTED] wrote: On Nov 6, 12:30 pm, Nicola Talbot [EMAIL PROTECTED] wrote: Hi, I've updated my Using LaTeX to write a PhD thesis tutorial. Both PDF My understanding is that the correct nomenclature is, Master's thesis, and, PhD dissertation. This may be more common usage in some regions, but thesis is more general and quite correct in either case, as the following indicate. === Thinkmap Visual Thesaurus (http://www.visualthesaurus.com/): exposition a systematic interpretation or explanation (usually written) of a given topic; an account that sets forth the meaning or intent of a writing or discourse treatise a formal exposition thesis dissertation a treatise advancing a new point of view resulting from research; usually a requirement for an advanced academic degree === Oxford Refernce Online--requires subscription (http://0-www.oxfordreference.com.aupac.lib.athabascau.ca/views/GLOBAL.html): The Concise Oxford Dictionary of Literary Terms: thesis an argument or proposition, which may be opposed by an antithesis ; or a scholarly essay defending some proposition, usually a dissertation submitted for an academic degree. --- Pocket Fowler's Modern English Usage thesis meaning a dissertation, has the plural form theses , pronounced thee -seez . --- The Concise Oxford Dictionary of English Etymology: thesis proposition, theme XVI ; (theme of) a dissertation XVII . === Merriam-Webster Online (http://www.m-w.com/): thesis 4: a dissertation embodying results of original research and especially substantiating a specific view; especially : one written by a candidate for an academic degree dissertation an extended usually written treatment of a subject; specifically : one submitted for a doctorate === HTH? wwwayne -- http://mail.python.org/mailman/listinfo/python-list
Re: How can i find the form name without nr=0
alex23 [EMAIL PROTECTED] writes: On Nov 6, 8:56 am, scripteaze [EMAIL PROTECTED] wrote: Is it possible then to have a form with no name and if so, how can i access this form Hey scripteaze, I'm not sure about mechanize, but you might have more success using another one of the author's modules, ClientForm: http://wwwsearch.sourceforge.net/ClientForm/ from urllib2 import urlopen from ClientForm import ParseResponse response = urlopen(http://wwwsearch.sourceforge.net/ClientForm/ example.html) forms = ParseResponse(response, backwards_compat=False) form = forms[0] As it returns a list of forms, you don't need to have a name to access it. mechanize forms are ClientForm forms. Quoting from mechanize.Browser.select_form().__doc__: Another way to select a form is to assign to the .form attribute. The form assigned should be one of the objects returned by the .forms() method. forms = list(br.forms()) br.form = pick_a_form(forms, br.global_form()) The global form (couldn't think of a better term) consists of all form controls not contained in any FORM element. John -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a good Python environment
On Nov 7, 9:16 am, Gerhard Häring [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: Hey, I'm looking for a good Python environment. That is, at least an editor and a debugger, and it should run on Windows. Does anyone have any idea? I like ERIC. You can get it athttp://www.die-offenbachs.de/eric/eric4-download.html Or just download and install PyQt4, which includes it: http://www.riverbankcomputing.com/Downloads/PyQt4/GPL/PyQt-Py2.5-gpl-... There's also a list of Python IDEs on the Python wiki:http://wiki.python.org/moin/IntegratedDevelopmentEnvironments -- Gerhard WingIDE all the way. After trying a number of deve environments, Wing was the first I used that actually allowed me to be productive. They offer a free version, but it's worth getting the professional version, too. http://www.wingide.com/ VSmirk -- http://mail.python.org/mailman/listinfo/python-list
Re: Mikhail Khodorkovsky was a Rothschild frontman and he obtained his initial capital and manipulation knowledge from there. Re: 911 operation by evil JEWS and Mossad
On Nov 7, 8:35 am, [EMAIL PROTECTED] wrote: Google is a half russian jew company. We have had to make new accounts as a result of it sending us a cookie which cripples postings. The jew agents involved in this process are the ones that make deflecting replies. Their operating procedure: Deflect, when you cannot defend. Therefore, we ignore them. On Nov 7, 7:08 am, [EMAIL PROTECTED] wrote: 911 carried out by evil jews and mossadhttp://www.guba.com/watch/2000991770 911 truckload of Explosives on the George Washington Bridgehttp://www.youtube.com/watch?v=J520P-MD9a0 Benjamin Freedman's SEMINAL TESTIMONIAL SPEECHhttp://video.google.com/videoplay?docid=3552214685532803163 Benjamin Freedman speech with Slide Show (40 Minute Excerpt)http://video.google.com/videoplay?docid=3552214685532803163 Free pdf book: THE MANUFACTURE AND SALE of Saint Einstein @http://jewishracism.com/SaintEinstein.htm Author interviews @http://jewishracism.com/interviews.htm Rothschilds control half the world's wealth directly and indirectly using zionist proxies, and loyalty based on the zionist racist cult of hate and paranoia based on being caught for collective financial crimes and crimes of other categories History of the Rothschilds part 1http://www.youtube.com/watch?v=o_u2MaNg-EQ History of the Rothschilds part 2http://www.youtube.com/watch?v=o2cw-0N_Unk FBI, Where are the two Israelis with TRUCKLOAD of explosives at the George Washington Bridge ?http://www.youtube.com/watch?v=JfVumKHkcIA - Shame stooopid americans Alex Jones Interviews David Mayer de Rothschildhttp://video.google.com/videoplay?docid=4891699310483983031 The rise of the Rothschild Money Mastershttp://www.youtube.com/watch?v=ZT3GyphxJv8 Rothschilds financed APARTHEID in South Africa. They corrupted Cecil Rhodes, the son of an anglican minister, by TEACHING him evil techniques of apartheid. Apartheid was taught to him by the father zionists themselves. Rothschilds control half the world's wealth directly and indirectly using zionist proxies, and loyalty based on the zionist racist culthttp://www.youtube.com/watch?v=fXVJzXsraX4 Was Hitler's father a bastard son of Rothschilds? Did the Salomon Mayer von Rothschild perhaps rape Maria Anna Schicklgruber in dark so that she could not ever claim with certainty who the real father was? Look at his facial features, typical central asian khazar. What was the cause of Hitler's fanatical hatred for the Jews ?http://en.wikipedia.org/wiki/Alois_Hitlerhttp://www.youtube.com/watch... On Nov 6, 9:53 am, [EMAIL PROTECTED] wrote: The world has been after Bill Gates for no reason. The richest group was and remains the Zionist jew Rothschilds family who own HALF the worlds total wealth through numerous frontmen zionists. Mikhail Khodorkovsky, whom Russian President Vladimir I Putin put in jail rose from the Rothschilds money. Mayer Amschel Bauer changed his name to Rothschild or red shield. The he sent his sons to various countries in Europe and become bankers there. Using an innovative system of pigeons for communication and encoded letters, the family invested in wars that he knew were coming by staying close to the centers of powers in all the countries which they had infilterated. google video and youtube have many videos on the family. You can set aside part of your weekend for HEALTHY education so your kids can learn how to avoid being hunted by these snakes.- Hide quoted text - - Show quoted text - Even if google was a company run by anti-semitic nut jobs (your type of folk), they would be right to prevent you from posting such things in a Python, tex or physics mailing list. Hey... everybody, if you use Google groups and are getting tons of this crap, report it as abuse! I don't know if they will do anything about it, but its getting to the point where I don't want to look at comp.lang.python at work. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to use list as key of dictionary?
Duncan Booth wrote: Wildemar Wildenburger [EMAIL PROTECTED] wrote: maybe something like this could help: def tupleize(non_tuple): try: return tuple(tupleize(thing) for thing in non_tuple) except TypeError: # non_tuple is not iterable return non_tuple Just don't try passing that a string or anything containing a string. Outch! Right you are. We'll that's the genius of paid updates for you. /W -- http://mail.python.org/mailman/listinfo/python-list
pydoc - generating HTML docs from string input
Has anyone ever tried mucking with pydoc to the point where you can get it to give you output from a string input? For example I'd like to give it a whole module to generate documentation for but all within a string: #little sample module_code=''' Module docstring def func1(): some docstring pass ... ''' pydoc.html(module_code) - HTML output as a string Any ideas? -Greg -- http://mail.python.org/mailman/listinfo/python-list
Re: os.popen does not seem to catch stdout
On Nov 7, 12:17 pm, [EMAIL PROTECTED] [EMAIL PROTECTED]
wrote:
On Nov 7, 11:31 am, [EMAIL PROTECTED] wrote:
On Nov 7, 7:58 am, [EMAIL PROTECTED] wrote:
Hi there,
I've been banging my head against this for a day, and I can't take it
anymore. It's probably a stupid error, but I don't see where.
I'm trying to use Python to call an external program, and then catch
and process the output of that program. Seems simple enough. The
command I'm trying to run, in the test, is:
/Users/zane/svn/stress/satstress/satstress -r1.561e+06 -a5 -s45000 -
e0 -R6.709e+08 -g1.31472 -m1.8987e+27 -Q57100.1 -n0.55 -Y9.29881e
+09 -k1e+22 -Z1.19173 -z-6.293e-05 -V0.309434 -v-2.903e-05 -W1.81305 -
w-0.00418645 -U0.474847 -u-0.00276624 -C /tmp/18_tmp.gen -b 60
When I run it at my zsh prompt, I get the expected output.
If I let ss_cmd equal the above string within ipython (or the standard
python interactive interpreter):
ss_outlines = os.popen(ss_cmd).readlines()
ss_outlines contains the same output I saw when I ran the command at
my zsh prompt, one line per list element, as expected.
However, when I try doing the same thing from within a program, it
fails. ss_outlines is an empty list.
I've tried using subprocess.Popen(), and subprocess.call(), and
subprocess.check_call(), and all have yielded similar results. I did
find, however, that the return value python is getting from the
program I'm calling is different from what I get at the command line
(I get 0, python gets -11).
Does this ring a bell for anyone?
I'm using Python 2.5.1 on a Mac running OS X 10.5.
I think when you use subprocess.Popen, you need to do something set
the shell to True to get it to behave like running from a command
prompt:
subprocess.Popen('some command', shell=True)
Seehttp://docs.python.org/lib/node529.htmlformore details.
You'll also find a fairly interesting thread on this topic here:
http://mail.python.org/pipermail/chicago/2005-November/000141.htmlhtt...
This seems to be a recipe on it:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/440554
Mike
That's right, and I think you also want to put the whole command in a
list or tuple, one item for each arg. I don't know why though.
-Greg
I've never had to put the command into a list or tuple...but you're
welcome to try it that way.
Mike
--
http://mail.python.org/mailman/listinfo/python-list
os.EX_USAGE and friends not available in Windows?
I'm writing scripts that run on Mac OS X and Windows. For automated testing purposes, I wanted to standardize my exit codes, so discovered that the Unix sysexit codes were available from the posix module as os.EX_*. I changed things around on the Mac, then tested on Windows and the constants don't seem to be available there. Have I missed something? Thanks, Rush -- http://mail.python.org/mailman/listinfo/python-list
Re: Is pyparsing really a recursive descent parser?
On 2007-11-07, Just Another Victim of the Ambient Morality [EMAIL PROTECTED] wrote: Neil Cerutti [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] You might be interested in the Early parsing algorithm. It is more efficient than the naive approach used in your prototype, and still handles ambiguous grammars. I'll take this opportunity to correct my misspelling. It's Earley. I think I might be interested in this algorithm, thank you! http://www.cpsc.ucalgary.ca/~aycock/spark/ You know, I tried this thing but, for the life of me, I can't figure out how to use it and the few tutorials out there are less than illuminating... I'll send you the code I composed. The tricky part of Spark is the Token and AST classes you have to use. A type used as a token class is required to provide a __cmp__ function that behaves in the following confounding manner: class Token(object): def __cmp__(self, o): return cmp(self.type, o) If you attempt to use a list, string or a tuple as token, it just barfs. AST's are required to provide an even weirder interface. In effect, you have to write badly designed wrappers around tuples and lists, respectively to take advantage of the generic classes. Go to the examples directory of the distribution to find working versions of these stupid classes. Once you get over that hurdle it becomes easier. Be sure to provide your Parser and Scanner classes with an error method to prevent the library from raising SystemExit(!) on errors. Scanner classes are also required to override the t_default method to prevent this mishap. In short, it hasn't really evovled into a user-friendly package yet. -- Neil Cerutti -- http://mail.python.org/mailman/listinfo/python-list
Re: Is pyparsing really a recursive descent parser?
On Nov 7, 2007 3:15 PM, Just Another Victim of the Ambient Morality [EMAIL PROTECTED] wrote: In short, it hasn't really evovled into a user-friendly package yet. Thank you. How is it that I seem to be the only one in the market for a correct parser? Earley has a runtine of O(n^3) in the worst case and O(n^2) typically. I have trouble believing that everyone else in the world has such intense run-time requirements that they're willing to forego correctness. Why can't I find a pyparsing-esque library with this implementation? I'm tempted to roll my own except that it's a fairly complicated algorithm and I don't really understand how it's any more efficient than the naive approach... You have an unusual definition of correctness. Many people would say that an ambiguous grammar is a bug, not something to support. In fact, I often use pyparsing precisely in order to disambiguate (according to specific rules, which are embodied by the parser) ambiguous input, like bizarre hand-entered datetime value. -- http://mail.python.org/mailman/listinfo/python-list
Re: pydoc - generating HTML docs from string input
[EMAIL PROTECTED] wrote: Has anyone ever tried mucking with pydoc to the point where you can get it to give you output from a string input? For example I'd like to give it a whole module to generate documentation for but all within a string: #little sample module_code=''' Module docstring def func1(): some docstring pass ... ''' pydoc.html(module_code) - HTML output as a string Any ideas? The problem with this is that your module can do relative imports, and it DOES matter where your module is located in the filesystem. In the very unlikely case when you store your modules in an external system (e.g in a database), and you use __import__ hacks to run your code, I would recommend to write a program that exports your stored modules into a real filesystem and run pydoc there. Regards, Laszlo -- http://mail.python.org/mailman/listinfo/python-list
PIL Problem
Hi; I´ve installed Zope 2.10.5 on top of Python 2.4.2 (not optimal, but it will work, according to the build instructions). I installed Plone 3.0.2 and I get errors when I crank up Zope, all related to a non-existent PIL. So I d/l/d the latest PIL, plopped it in my Extensions dir, ran this: python setup.py build_ext -i and got this: running build_ext building '_imagingtk' extension creating build/temp.freebsd-5.5-RELEASE-i386-2.4/Tk cc -fno-strict-aliasing -DNDEBUG -O -pipe -D__wchar_t=wchar_t -DTHREAD_STACK_SIZE=0x10 -fPIC -I/usr/local/include/freetype2 -IlibImaging -I/usr/local/include -I/usr/include -I/usr/local/include/python2.4 -c _imagingtk.c -o build/temp.freebsd-5.5-RELEASE-i386-2.4/_imagingtk.o _imagingtk.c:20:16: tk.h: No such file or directory _imagingtk.c:23: error: syntax error before '*' token _imagingtk.c:31: error: syntax error before Tcl_Interp _imagingtk.c: In function `_tkinit': _imagingtk.c:37: error: `Tcl_Interp' undeclared (first use in this function) _imagingtk.c:37: error: (Each undeclared identifier is reported only once _imagingtk.c:37: error: for each function it appears in.) _imagingtk.c:37: error: `interp' undeclared (first use in this function) _imagingtk.c:45: error: syntax error before ')' token _imagingtk.c:50: error: `app' undeclared (first use in this function) _imagingtk.c: At top level: _imagingtk.c:55: warning: parameter names (without types) in function declaration _imagingtk.c:55: error: conflicting types for 'TkImaging_Init' _imagingtk.c:23: error: previous declaration of 'TkImaging_Init' was here _imagingtk.c:55: error: conflicting types for 'TkImaging_Init' _imagingtk.c:23: error: previous declaration of 'TkImaging_Init' was here _imagingtk.c:55: warning: data definition has no type or storage class _imagingtk.c:57: error: syntax error before '' token error: command 'cc' failed with exit status 1 What do? TIA, Tony running build_ext building '_imagingtk' extension creating build/temp.freebsd-5.5-RELEASE-i386-2.4/Tk cc -fno-strict-aliasing -DNDEBUG -O -pipe -D__wchar_t=wchar_t -DTHREAD_STACK_SIZE=0x10 -fPIC -I/usr/local/include/freetype2 -IlibImaging -I/usr/local/include -I/usr/include -I/usr/local/include/python2.4 -c _imagingtk.c -o build/temp.freebsd-5.5-RELEASE-i386-2.4/_imagingtk.o _imagingtk.c:20:16: tk.h: No such file or directory _imagingtk.c:23: error: syntax error before '*' token _imagingtk.c:31: error: syntax error before Tcl_Interp _imagingtk.c: In function `_tkinit': _imagingtk.c:37: error: `Tcl_Interp' undeclared (first use in this function) _imagingtk.c:37: error: (Each undeclared identifier is reported only once _imagingtk.c:37: error: for each function it appears in.) _imagingtk.c:37: error: `interp' undeclared (first use in this function) _imagingtk.c:45: error: syntax error before ')' token _imagingtk.c:50: error: `app' undeclared (first use in this function) _imagingtk.c: At top level: _imagingtk.c:55: warning: parameter names (without types) in function declaration _imagingtk.c:55: error: conflicting types for 'TkImaging_Init' _imagingtk.c:23: error: previous declaration of 'TkImaging_Init' was here _imagingtk.c:55: error: conflicting types for 'TkImaging_Init' _imagingtk.c:23: error: previous declaration of 'TkImaging_Init' was here _imagingtk.c:55: warning: data definition has no type or storage class _imagingtk.c:57: error: syntax error before '' token error: command 'cc' failed with exit status 1 What do? TIA, Tony Email and AIM finally together. You've gotta check out free AOL Mail! - http://mail.aol.com -- http://mail.python.org/mailman/listinfo/python-list
Re: command-line arguments in IDLE
On Nov 7, 6:27 am, Russ P. [EMAIL PROTECTED] wrote: Is it possible to pass command-line arguments when running a program in IDLE? The Run menu does not seem to provide that option. Thanks. Can't you just fake the command line args by setting sys.argv? This isn't too sophisticated, but it appears to work: import sys try: __file__ except: sys.argv = ['scriptname.py', 'this','is','a','test','within','idle'] for arg in sys.argv: print arg Running from within IDLE: scriptname.py this is a test within idle Running from the command prompt: C:\Python24python.exe mystuff/argtest.py this is yet another test mystuff/argtest.py this is yet another test C:\Python24 HTH, Don -- http://mail.python.org/mailman/listinfo/python-list
Re: Questions on Using Python to Teach Data Structures and Algorithms
On Thu, 28 Sep 2006 17:23:25 +0200, Ramon Diaz-Uriarte [EMAIL PROTECTED] wrote: Going back to the original question, a related question: does anybody know why there are so few books on data structures and algorithms that use Python? I remember that, at least ~ 12 years ago there were many (and very good) books that used Pascal for this topic. So when I did my own search for one in Python (just for my own consumption and enlightnment) and could only find the same one as the original poster of this thread [1], I was very surprised. No publishers have felt the need to fill this gap? No, and you'll know why if you check for the number of university and college computer science students learning Python in their introductory programming course (not the number of institutions that teach a little bit in a physics course), and the number of textbooks available to support that (and not free online or print tutorials). There's just not a big enough market for (traditional) publishers to be interested in publishing them or (traditional) authors in writing them. Preiss (http://www.brpreiss.com/page1.html) translated his original C++ text (1999) into a number of other languages: Java (2000), C# (2001), Python (2003), and Ruby (2004). So he could easily afford to Translate the early money-makers into less used languages because the initial writing overhead was no longer an issue--and much of the tyranslation was automated. And he uses his free online versions to help market the publishe'rs small (relative to C++ and Java) print runs, so they can afford to service this very small market. DSA--formerly (i.e., in the Good Old Days) just Data Structures-- is or was, in the usual CS curriculum (a la ACM+IEEE) at least, a second-level course based on CS1; hence, most efficiently taught using the students' introductory language (if it's at all suitable, and texts are available) so only some finer points of the language needed covering and one can concentrate on implementation of the data structures themselves. So very little CS1 in Python translates into very little--and probably even less--CS2, etc., in Python. wwwayne Best, R. [1] http://thread.gmane.org/gmane.comp.python.general/486698/focus=486698 Data Structures and Algorithms with Object Oriented Design Patterns (http://www.brpreiss.com/books/opus7/html/book.html) and was surprised. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is pyparsing really a recursive descent parser?
On Wed, 07 Nov 2007 21:15:50 +, Just Another Victim of the Ambient Morality wrote: Why can't I find a pyparsing-esque library with this implementation? I'm tempted to roll my own except that it's a fairly complicated algorithm and I don't really understand how it's any more efficient than the naive approach... I think you may have just answered your own question :) -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: command-line arguments in IDLE
Russ P. wrote: Is it possible to pass command-line arguments when running a program in IDLE? The Run menu does not seem to provide that option. Thanks. thunderfoot's workaround should work well, but requires changing the script. If you want IDLE environment, but don't mind running IDLE from the command line, you can do the following: idle.py -r scriptname.py this is a test The script will run inside IDLE's shell with sys.argv set as you would expect. The output will go to IDLE's shell, and once the script is done running the shell will become interactive. (idle.py is usually found in your Python installation under Lib/ idlelib/) - Tal Einat reduce(lambda m,x:[m[i]+s[-1] for i,s in enumerate(sorted(m))], [[chr(154-ord(c)) for c in '.-,l.Z95193+179-']]*18)[3] -- http://mail.python.org/mailman/listinfo/python-list
Re: Retrieving all open applications ...
On 7 Nov, 21:33, Gabriel Genellina [EMAIL PROTECTED] wrote: En Wed, 07 Nov 2007 06:36:49 -0300, Ajay Deshpande [EMAIL PROTECTED] escribió: well i still havent found a solution to this ... since i am using ubuntu 7.10, i cannot use the hammond modules ... As you said list of window handles I thought you were working on Windows. Try with: man ps Use the subprocess module to call ps with your desired options. Something like xlsclients might do the job. For more information on each window, try xwininfo with the -name option; something like this: xwininfo -name 'Mail - Kontact' The xprop program can provide plenty more detail, and both programs accept a -root option to refer to the root window instead of a named window. Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: Questions on Using Python to Teach Data Structures and Algorithms
On Thu, 28 Sep 2006 17:32:06 +0200, Fredrik Lundh [EMAIL PROTECTED] wrote: Ramon Diaz-Uriarte wrote: Going back to the original question, a related question: does anybody know why there are so few books on data structures and algorithms that use Python? Probably because Python has better than textbook implementations of core structures, and better than textbook implementations of many core algorithms, so lots of things can be done more efficiently by combining existing structures and algorithms than by using textbook algorithms. But this answers a diiferent question: university and (academic) college data structure courses don't care how efficient a particular language's built-in data structures are, since the intent is for the students to learn how to implement data structures in general, and probably in a particular language--the core languasge used in their core programs--and then be able to apply that knowledge and skill to implementing at least reasonably efficient ones when they need to in languages that don't have any to speak of built in. And, since many students will go direct to business or industry, and may even be apprenticing there in co-op work terms during their education, most could care less how efficient Python's built-in data structures are. Also, it's a very rare DSA text that intends its DS code to be used directly--especially in serious applications. Preiss's texts, noted by the OP, are one exception, and many could be used out of the box in industrial strength applications. So far as combining existing structures is concerned, it's highly unlikely that any such combination of linear structures could be more efficient in both--if either--storage and running time than one specifically designed and implemented for non-linear structures, such as (many) trees and algorithms on them. For general graphs efficient list processing may be sufficient for an adjacncy structure for the graph itself, of course, but how does that translate to storing a subtree found using a DFS, for example, and efficiently processing it in some way? For learning DSA it's more important to have a clear, well-written and well-documented implementation in a language of interest (again, especially, the core language in one's programs) than just using or even inspecting and trying to learn subtle details of some particular implementation of a related DS or A in some other language. How many of those who devleoped and improved the very efficient data structures in Python learned and honed their skills in Python (vs. C or Pascal, for example)? wwwayne /F -- http://mail.python.org/mailman/listinfo/python-list
Re: Is pyparsing really a recursive descent parser?
Chris Mellon [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On Nov 7, 2007 3:15 PM, Just Another Victim of the Ambient Morality [EMAIL PROTECTED] wrote: In short, it hasn't really evovled into a user-friendly package yet. Thank you. How is it that I seem to be the only one in the market for a correct parser? Earley has a runtine of O(n^3) in the worst case and O(n^2) typically. I have trouble believing that everyone else in the world has such intense run-time requirements that they're willing to forego correctness. Why can't I find a pyparsing-esque library with this implementation? I'm tempted to roll my own except that it's a fairly complicated algorithm and I don't really understand how it's any more efficient than the naive approach... You have an unusual definition of correctness. Many people would say that an ambiguous grammar is a bug, not something to support. I don't think I do. Besides, you assume too much... First off, we've already established that there are unambiguous grammars for which pyparsing will fail to parse. One might consider that a bug in pyparsing... Secondly, I get the impression you want to consider ambiguous grammars, in some sense, wrong. They are not. Even if they were, if you are parsing something for which you are not the creator and that something employs an ambiguous grammar, what choice do you have? Furthermore, given a set of possible parsings, you might be able to decide which one you favour given the context of what was parsed! There's a plethora of applications for parsing ambiguous grammars yet there are no tools for doing so? In fact, I often use pyparsing precisely in order to disambiguate (according to specific rules, which are embodied by the parser) ambiguous input, like bizarre hand-entered datetime value. What do you mean? How do you use pyparsing to disambiguate: 01-01-08 ...? -- http://mail.python.org/mailman/listinfo/python-list
Re: Is pyparsing really a recursive descent parser?
Steven D'Aprano [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On Wed, 07 Nov 2007 21:15:50 +, Just Another Victim of the Ambient Morality wrote: Why can't I find a pyparsing-esque library with this implementation? I'm tempted to roll my own except that it's a fairly complicated algorithm and I don't really understand how it's any more efficient than the naive approach... I think you may have just answered your own question :) Yes, but my own answer lacks detail that I was hoping you could provide... -- http://mail.python.org/mailman/listinfo/python-list
Re: pydoc - generating HTML docs from string input
On Nov 7, 4:47 pm, Laszlo Nagy [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: Has anyone ever tried mucking with pydoc to the point where you can get it to give you output from a string input? For example I'd like to give it a whole module to generate documentation for but all within a string: #little sample module_code=''' Module docstring def func1(): some docstring pass ... ''' pydoc.html(module_code) - HTML output as a string Any ideas? The problem with this is that your module can do relative imports, and it DOES matter where your module is located in the filesystem. In the very unlikely case when you store your modules in an external system (e.g in a database), and you use __import__ hacks to run your code, I would recommend to write a program that exports your stored modules into a real filesystem and run pydoc there. Regards, Laszlo That's a good point. I was mainly thinking about the case of simple modules with no other imports. But looking at pydoc's code, it looks like it would be quite a bit of work to make it work at all. -Greg -- http://mail.python.org/mailman/listinfo/python-list
Re: Is pyparsing really a recursive descent parser?
On Nov 7, 2007 5:15 PM, Just Another Victim of the Ambient Morality [EMAIL PROTECTED] wrote: Chris Mellon [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On Nov 7, 2007 3:15 PM, Just Another Victim of the Ambient Morality [EMAIL PROTECTED] wrote: In short, it hasn't really evovled into a user-friendly package yet. Thank you. How is it that I seem to be the only one in the market for a correct parser? Earley has a runtine of O(n^3) in the worst case and O(n^2) typically. I have trouble believing that everyone else in the world has such intense run-time requirements that they're willing to forego correctness. Why can't I find a pyparsing-esque library with this implementation? I'm tempted to roll my own except that it's a fairly complicated algorithm and I don't really understand how it's any more efficient than the naive approach... You have an unusual definition of correctness. Many people would say that an ambiguous grammar is a bug, not something to support. I don't think I do. There are an enormous variety of parsing tools, and it's the subject of much research. And in all those tools, not one meets your definition of correctness? You don't think that might make it unusual? Besides, you assume too much... First off, we've already established that there are unambiguous grammars for which pyparsing will fail to parse. One might consider that a bug in pyparsing... You might. Or you might not, since it's well known that there are lots of types of parsers that can't parse all possible grammars, but that doesn't make those parsers useless. Secondly, I get the impression you want to consider ambiguous grammars, in some sense, wrong. They are not. Sure they are, at least in many contexts. I understand that you want support for them, but it's by far more common to want one and only one set of results from parsing a particular document. Even if they were, if you are parsing something for which you are not the creator and that something employs an ambiguous grammar, what choice do you have? You either disambiguate, or you don't accept ambiguous input. The third option seems to be what you want, which is to find all possible solutions and return all of them (and wouldn't this be NP-hard in the general case?) but that's not a satisfactory result in most applications. Furthermore, given a set of possible parsings, you might be able to decide which one you favour given the context of what was parsed! There's a plethora of applications for parsing ambiguous grammars yet there are no tools for doing so? If you can do this, isn't this really a sign that your grammar is context sensitive? In fact, I often use pyparsing precisely in order to disambiguate (according to specific rules, which are embodied by the parser) ambiguous input, like bizarre hand-entered datetime value. What do you mean? How do you use pyparsing to disambiguate: 01-01-08 The same way a human would - given an ambiguous date such as this, I (arbitrarily) decided what it would mean. The alternative is to refuse the input. -- http://mail.python.org/mailman/listinfo/python-list
pydoc - how to generate documentation for an entire package?
I have a project/package for which I want to generate documentation using pydoc. My problem is that when I type pydoc.py -w MyPackage it only generates documentation for the package - no modules, classes or methods or sub-packages. Just a single HTML file called MyPackage.html That's strange - is there something here I'm missing. How do you generate documentation for a whole package? -- http://mail.python.org/mailman/listinfo/python-list
Re: a simple tcp server sample
Even simpler, use Twisted: I am afraid Twisted is not the right choice in my case. I am looking for smaller, simpler and minimal server sample. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is pyparsing really a recursive descent parser?
Chris Mellon [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On Nov 7, 2007 5:15 PM, Just Another Victim of the Ambient Morality [EMAIL PROTECTED] wrote: Chris Mellon [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On Nov 7, 2007 3:15 PM, Just Another Victim of the Ambient Morality [EMAIL PROTECTED] wrote: In short, it hasn't really evovled into a user-friendly package yet. Thank you. How is it that I seem to be the only one in the market for a correct parser? Earley has a runtine of O(n^3) in the worst case and O(n^2) typically. I have trouble believing that everyone else in the world has such intense run-time requirements that they're willing to forego correctness. Why can't I find a pyparsing-esque library with this implementation? I'm tempted to roll my own except that it's a fairly complicated algorithm and I don't really understand how it's any more efficient than the naive approach... You have an unusual definition of correctness. Many people would say that an ambiguous grammar is a bug, not something to support. I don't think I do. There are an enormous variety of parsing tools, and it's the subject of much research. And in all those tools, not one meets your definition of correctness? You don't think that might make it unusual? It doesn't appear to be common, I'll grant you that! However, there is some research. For instance, the Earley parser appears to be what I want (in conjunction with a parse tree builder). A CYK parser would probably do, too. The algorithms are out there yet no one has chosen to use any of them. At the same time, there are several LALR parsers. Why did anyone need to write the second one after the first one was written?! In fact, in a sense, my problem is solved. There exists a solution to my problem. It's just that no one has implemented that solution. I guess you're right in that it really does appear to be an unusual problem but I don't understand how... Besides, you assume too much... First off, we've already established that there are unambiguous grammars for which pyparsing will fail to parse. One might consider that a bug in pyparsing... You might. Or you might not, since it's well known that there are lots of types of parsers that can't parse all possible grammars, but that doesn't make those parsers useless. No one said they were useless. I only said that a correct parser is useful. Many people in this thread seem to disagree and I find this incredible... Secondly, I get the impression you want to consider ambiguous grammars, in some sense, wrong. They are not. Sure they are, at least in many contexts. I understand that you want support for them, but it's by far more common to want one and only one set of results from parsing a particular document. Okay, in some contexts, an ambiguous grammar may be considered erroneous. However, in many other contexts, it's merely a fact of life. How is it that there are no tools to address this? If nothing else, pyparsing throws the same error it does when there is no valid parsing of the string. Having no solution and having several solutions are not the same thing... Even if they were, if you are parsing something for which you are not the creator and that something employs an ambiguous grammar, what choice do you have? You either disambiguate, or you don't accept ambiguous input. The third option seems to be what you want, which is to find all possible solutions and return all of them (and wouldn't this be NP-hard in the general case?) but that's not a satisfactory result in most applications. What do you mean by disambiguate? Do you mean disambiguate the grammar? One of the conditions of the problem is that you have no control over the grammar, so that's really not an option. Also, an implicit condition of solving a problem is that the problem be... solved, so not accepting the input is not an option, either. While there are many applications that can't deal with multiple solutions, surely there are some? Again, perhaps you can pick one solution over the other through the context of the parse results? That's kind of hard to do if your parser refuses to return any results... Just because a grammar is ambiguous doesn't mean the input string is. It can easily be the case that most or all the input you're expecting will, in practice, only produce one correct parse tree. In this case, it would be useful for your parser to return a correct solution, even at random! Finally, who cares if something is NP-Hard? Okay, in some situations, you'd care. In many others, you don't. For instance, suppose your input length has an upper bound? Unless that's a really high bound or a really complex grammar, its runtime is not likely relevant... Furthermore, given a set of possible parsings, you might be able to decide
Re: How can i find the form name without nr=0
On Nov 7, 1:35 pm, [EMAIL PROTECTED] (John J. Lee) wrote: alex23 [EMAIL PROTECTED] writes: On Nov 6, 8:56 am, scripteaze [EMAIL PROTECTED] wrote: Is it possible then to have a form with no name and if so, how can i access this form Hey scripteaze, I'm not sure about mechanize, but you might have more success using another one of the author's modules, ClientForm:http://wwwsearch.sourceforge.net/ClientForm/ from urllib2 import urlopen from ClientForm import ParseResponse response = urlopen(http://wwwsearch.sourceforge.net/ClientForm/ example.html) forms = ParseResponse(response, backwards_compat=False) form = forms[0] As it returns a list of forms, you don't need to have a name to access it. mechanize forms are ClientForm forms. Quoting from mechanize.Browser.select_form().__doc__: Another way to select a form is to assign to the .form attribute. The form assigned should be one of the objects returned by the .forms() method. forms = list(br.forms()) br.form = pick_a_form(forms, br.global_form()) The global form (couldn't think of a better term) consists of all form controls not contained in any FORM element. John- Hide quoted text - - Show quoted text - Thank you guys for replying, im sure that one of these methods will suffice, after this project, im definatly going to do more in lui of web apps for learning..Thanks again -- http://mail.python.org/mailman/listinfo/python-list
911 operation by evil JEWS and Mossad
911 carried out by evil jews and mossad http://www.guba.com/watch/2000991770 911 truckload of Explosives on the George Washington Bridge http://www.youtube.com/watch?v=J520P-MD9a0 Benjamin Freedman's SEMINAL TESTIMONIAL SPEECH http://video.google.com/videoplay?docid=3552214685532803163 Benjamin Freedman speech with Slide Show (40 Minute Excerpt) http://video.google.com/videoplay?docid=3552214685532803163 Free pdf book: THE MANUFACTURE AND SALE of Saint Einstein @ http://jewishracism.com/SaintEinstein.htm Author interviews @ http://jewishracism.com/interviews.htm Rothschilds control half the world's wealth directly and indirectly using zionist proxies, and loyalty based on the zionist racist cult of hate and paranoia based on being caught for collective financial crimes and crimes of other categories History of the Rothschilds part 1 http://www.youtube.com/watch?v=o_u2MaNg-EQ History of the Rothschilds part 2 http://www.youtube.com/watch?v=o2cw-0N_Unk FBI, Where are the two Israelis with TRUCKLOAD of explosives at the George Washington Bridge ? http://www.youtube.com/watch?v=JfVumKHkcIA - Shame stooopid americans Alex Jones Interviews David Mayer de Rothschild http://video.google.com/videoplay?docid=4891699310483983031 The rise of the Rothschild Money Masters http://www.youtube.com/watch?v=ZT3GyphxJv8 Rothschilds financed APARTHEID in South Africa. They corrupted Cecil Rhodes, the son of an anglican minister, by TEACHING him evil techniques of apartheid. Apartheid was taught to him by the father zionists themselves. Rothschilds control half the world's wealth directly and indirectly using zionist proxies, and loyalty based on the zionist racist cult http://www.youtube.com/watch?v=fXVJzXsraX4 Was Hitler's father a bastard son of Rothschilds? Did the Salomon Mayer von Rothschild perhaps rape Maria Anna Schicklgruber in dark so that she could not ever claim with certainty who the real father was? Look at his facial features, typical central asian khazar. What was the cause of Hitler's fanatical hatred for the Jews ? http://en.wikipedia.org/wiki/Alois_Hitler http://www.youtube.com/watch?v=TihCM_q59c8 On Nov 6, 9:53 am, [EMAIL PROTECTED] wrote: The world has been after Bill Gates for no reason. The richest group was and remains the Zionist jew Rothschilds family who own HALF the worlds total wealth through numerous frontmen zionists. Mikhail Khodorkovsky, whom Russian President Vladimir I Putin put in jail rose from the Rothschilds money. Mayer Amschel Bauer changed his name to Rothschild or red shield. The he sent his sons to various countries in Europe and become bankers there. Using an innovative system of pigeons for communication and encoded letters, the family invested in wars that he knew were coming by staying close to the centers of powers in all the countries which they had infilterated. google video and youtube have many videos on the family. You can set aside part of your weekend for HEALTHY education so your kids can learn how to avoid being hunted by these snakes. -- http://mail.python.org/mailman/listinfo/python-list
Source insight support files
Is there anyone who uses source insight for python source code editing/browsing? It seems like Tim used to use it ( http://mail.python.org/pipermail/python-list/2001-May/082137.html )..., but I'm not sure if he still uses it. Anyway, if there's anyone who uses it and has a customized support configuration/files, please let me use it, too. ;^) I'm currently using source insight with Python.clf file and it's not bad, but not satisfactory. -Jiwon -- http://mail.python.org/mailman/listinfo/python-list
Re: a simple tcp server sample
See the SocketServer module, both the documentation and the source code. I firstly looked at this module and its __doc__, yet I still need an 'hello world' sample. and couldn't get it straight how can I write my own hello world sample with SocketServer objects. -- http://mail.python.org/mailman/listinfo/python-list
Using python as primary language
In our company we are looking for one language to be used as default language. So far Python looks like a good choice (slacking behind Java). A few requirements that the language should be able cope with are: * Database access to Sybase. This seems to be available for python, but the windows-binaries for the library are not available. Self-Compiling them proved to be non-trivial (As always on windows). * Easy GUI creation. Solved using PyQt. * Cross Platform (Linux + Windows). Again, PyQt, solves this * Easy deployment. Solved using py2exe + innosetup * Charting (Histograms, Line charts, bar charts, pie charts, ...) I am currently looking into PyQwt, which looks promising. * Report generation with GUI support reportlab + rml? So far, nearly all point seems to be manageable. But I was not yet able to find a solution for the report generation. What we would like to have is a sort of GUI interface to prepare the reports without having to code the positioning. I found reportlab, and it looks like it can do all that is needed in terms of output. But you still have to code the report. And this is a no go. In context, I found RML and saw links to graphical RML editors. But I have not yet found a concrete example code, or documentation. What am I missing? Is RML a reportlab creation or is it a recognised open standard? If not, is there an open standard, that is easily to process with python? Any pointers? I would prefer coding Python to coding Java or worse. VB ;) which is another contender in our roundup. -- http://mail.python.org/mailman/listinfo/python-list
Re: Confused about closures and scoping rules
On Wed, 07 Nov 2007 01:37:00 +0100, Chris Mellon [EMAIL PROTECTED] wrote: Are there languages where closures *don't* behave like this? A closure that used a copy of the state rather than the actual state itself doesn't seem as useful. For references sake, JavaScript (the only language that a) has closures and b) I have a handy way to test with) does the same thing. The results in an equivalent code might depend on the semantics of the looping construct used. For example, take Scheme (I'm using Gauche Scheme): (define (outer-1 nmax) (let ((aa '())) (dotimes (n nmax) (push! aa (lambda (y) (list y: y n: n aa)) (define (outer-2 nmax) (let ((aa '()) (n 0)) (until (= n nmax) (push! aa (lambda (y) (list y: y n: n))) (set! n (+ n 1))) aa)) (print (map (lambda (f) (f 1)) (outer-1 5))) (print (map (lambda (f) (f 1)) (outer-2 5))) $ gosh closures.scm ((y: 1 n: 4) (y: 1 n: 3) (y: 1 n: 2) (y: 1 n: 1) (y: 1 n: 0)) ((y: 1 n: 5) (y: 1 n: 5) (y: 1 n: 5) (y: 1 n: 5) (y: 1 n: 5)) In outer-1, the (dotimes ...) form expands into (do ...). R5RS defines that a (do ...) loop is expected to _rebound_ all of its state variables (here it is only n) in each iteration step. This means that each closure created captures a different binding. Whereas in outer-2, I am updating the binding destructively, so the value changes in the environment of all the closures that have been already stored. Python seems to do the latter. (I am not a pythonist right now, but I am learning... :)) Regards, Jakub -- http://mail.python.org/mailman/listinfo/python-list
Re: Is pyparsing really a recursive descent parser?
What do you mean by disambiguate? Do you mean disambiguate the grammar? One of the conditions of the problem is that you have no control over the grammar, so that's really not an option. Also, an implicit condition of solving a problem is that the problem be... solved, so not accepting the input is not an option, either. Could you please learn some parser theory 101 and then come back when you have complaints about one or the other implemententation of a particular Python parser? When some guy enters a forum with a newbie question most of the time people are willing to give a fair and comprehensive answer but they don't want to mess around with him endlessly when he is not willing to learn and to listen. -- http://mail.python.org/mailman/listinfo/python-list
help parsing ipv6 addresses and subnets
Hello list,
I would like to parse IPv6 addresses and subnet using re module in
python. I am able to either parse the ipv6 address or ipv6 network but
not both using single line. any help appreciated. BTW is there a
metacharacter for hex digits.
Thanks
Prabhu
-
-
#!/usr/bin/env python2.5
# $Id: $
import re, os, Queue, sys
from optparse import OptionParser
# for debug purposes only
import pdb
argc = len(sys.argv)
(dirname, program) = os.path.split(sys.argv[0])
def error(Message):
if Message:
global program
print %s: %s %(program, Message)
sys.exit(1)
def cisco_parse(FileName):
if FileName:
fh = None
if os.path.exists(FileName):
try:
fh = open(FileName, r)
except IOError, message:
error(message)
else:
count = 0
flag = True
while flag:
try:
lines = fh.next()
except StopIteration:
flag = False
else:
line = lines.strip()
rehex = [A-Fa-f0-9]
# to parse ipv6 address
format = \
((%s{1,4}:?:){1,7}%s{1,4}) %(rehex, rehex)
# to parse ipv6 subnet
# format = \
# ((%s{1,4}:?:){1,7}%s{1,4}(?=(::/\d{1,3})))
%(rehex, rehex)
reip6 = re.compile(format)
match = reip6.search(line)
if match is not None:
tupleLen = len(match.groups())
if tupleLen == 2:
print count, match.groups()[0]
elif tupleLen == 3:
print count, match.groups()[0] + match.groups()[2]
count += 1
fh.close()
fh = None
def ParseCmdLine():
parser = OptionParser(usage=%prog [options], version=%prog 1.0)
parser.add_option(-f, --filename,
help=cisco config to read, dest=file)
(options, args) = parser.parse_args()
fileName = None
if options.file:
fileName = options.file
if fileName:
cisco_parse(fileName)
if __name__ == __main__:
if argc = 1:
error(too few arguments, use -h or --help to view all options)
else:
ParseCmdLine()
--
http://mail.python.org/mailman/listinfo/python-list
Re: a simple tcp server sample
here is its:
# a simple tcp server
import SocketServer
class EchoRequestHandler(SocketServer.BaseRequestHandler ):
def setup(self):
print self.client_address, 'connected!'
self.request.send('hi ' + str(self.client_address) + '\n')
def handle(self):
while 1:
data = self.request.recv(1024)
self.request.send(data)
if data.strip() == 'bye':
return
def finish(self):
print self.client_address, 'disconnected!'
self.request.send('bye ' + str(self.client_address) + '\n')
#server host is a tuple ('host', port)
server = SocketServer.ThreadingTCPServer(('', 50008),
EchoRequestHandler)
server.serve_forever()
--
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An important message to all jobseekers ,and internet users
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easy 3D graphics for rendering geometry?
What would be the easiest way to go about offering 3D graphics for the purpose of rendering geometry? Suppose engineers (my co-workes) have to design some enclosure, nozzle, bracket, or whatever physical part/component, I would like to write a program where they can at least see the resulting geometry and navigate it, i.e., zoon-in/out, rotate, pan. On the side, I could have data entry fields with the input parameters and when something is changed, the graphics can be updated immediately (after the necessary calculations have been done). I know I need to learn something, and I am willing, I just need help choosing what to learn. I don't have any experience on this matter, don't know OpenGL, Mesa, VTK, VRS, Maya...and all seem to have a steep learning curve. I don't know any of the other graphics packages more oriented for game/ scenery/movie development (Panda, etc.), either. I do know my trig and build my FEA parts parametrically from points, to line, to surfaces, to volumes or from volume boolean algebra. I would like the choice to be some kind of module/API that works equally well on Linux as in Windows. So: What would be the easiest way? and would it be worth learning? or is it better to shoot for something not so easy but worth learning? thanks in advance for any pointers. gsal -- http://mail.python.org/mailman/listinfo/python-list
