[Ann] Celery 2.2 released!
==
Celery 2.2 is now available!
==
We're happy to announce the release of Celery 2.2.
Thanks to all contributors, testers and users, which without
this release would not have been possible.
What is it?
===
Celery is an asynchronous task queue/job queue based on distributed message
passing. It is focused on real-time operation, but supports scheduling as well.
The execution units, called tasks, are executed concurrently on a single or
more worker nodes using multiprocessing, Eventlet, or gevent. Tasks can
execute asynchronously (in the background) or synchronously (wait until ready).
Celery is used in production systems to process millions of tasks a day.
Celery is written in Python, but the protocol can be implemented in any
language. It can also operate with other languages using webhooks.
The recommended message broker is RabbitMQ, but limited support for Redis,
Beanstalk, MongoDB, CouchDB, and databases (using SQLAlchemy or the Django ORM)
is also available.
Celery is easy to integrate with Django, Pylons and Flask, using the
django-celery, celery-pylons and Flask-Celery add-on packages.
Going to PyCon US 2011?
===
Then don't forget to attend Ryan Petrello's talk,
Distributed Tasks with Celery: http://us.pycon.org/2011/schedule/sessions/1/
What's new?
===
* Eventlet and gevent support.
Worker nodes can now use Eventlet/gevent as an alternative to
multiprocessing. You could run several nodes running different
pool implementations and route tasks to the best tool for the job.
* Jython support!
* This is the last version supporting Python 2.4.
* Celery is now a class that can be instantiated, and the configuration is no
longer global (see http://bit.ly/i6s3qK)
* Built-in support for virtual transports (ghettoq queues)
Virtual transports for Redis, Beanstalk, CouchDB, MongoDB,
SQLAlchemy and the Django ORM are now available by default,
and the implementations have been drastically improved.
* Now using Kombu instead of Carrot.
Kombu is the next generation messaging framework for Python.
See http://packages.python.org/kombu
* Multiple instances of event monitors can now run simultaneously (celeryev,
celerymon, djcelerymon)
* Redis transport can now do remote control commands.
* Autoscaling of worker processes.
* Magic keyword arguments pending deprecation.
The magic keyword arguments will be completely removed in version 3.0.
It is important that you read the full changelog for more details.
And *lots* more! The Changelog contains a detailed
list of all improvements and fixes:
http://celeryproject.org/docs/changelog.html#version-2-2-0
Be sure to read this before you upgrade!
Upgrading
=
To upgrade using pip::
$ pip install -U celery
If you're using Django, then django-celery will automatically
upgrade Celery as well::
$ pip install -U django-celery
Resources
=
:Homepage: http://celeryproject.org
:Download: http://pypi.python.org/pypi/celery
:Community Links: http://celeryq.org/community.html
:Documentation: http://celeryproject.org/docs/
:Code: http://github.com/ask/celery/
:FAQ: http://ask.github.com/celery/faq.html
:Mailing list: http://groups.google.com/group/celery-users
:IRC: #celery at irc.freenode.net.
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ANN: mpmath 0.17 (Python 3 support and more)
Hi all, Version 0.17 of mpmath is now available on the project website: http://code.google.com/p/mpmath/ It can also be downloaded from the Python Package Index: http://pypi.python.org/pypi/mpmath/0.17 Mpmath is a pure-Python library for arbitrary-precision floating-point arithmetic that implements an extensive set of mathematical functions. It can be used as a standalone library or via SymPy (http://code.google.com/p/sympy/), and is also available as a standard component of Sage (http://sagemath.org/). The major news in 0.17 is that mpmath now works with Python 3. To support both Python 2.x and 3.x with the same codebase, compatibility with Python 2.4 has been dropped (mpmath now requires 2.5 or higher). New functionality in mpmath 0.17 includes an implementation of the Lerch transcendent, Riemann zeta zero counting, and improved support for evaluating derivatives of the Hurwitz zeta function and related functions. Many thanks to Juan Arias de Reyna and Case Vanhorsen who contributed to this version. For more details, see the changelog: http://mpmath.googlecode.com/svn/tags/0.17/CHANGES Extensive documentation is available at: http://mpmath.googlecode.com/svn/trunk/doc/build/index.html or http://mpmath.googlecode.com/svn/tags/0.17/doc/build/index.html Bug reports and other comments are welcome on the issue tracker at http://code.google.com/p/mpmath/issues/list or the mpmath mailing list: http://groups.google.com/group/mpmath Enjoy, Fredrik Johansson -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
Reassign or discard Popen().stdout from a server process
I'm starting a server process as a subprocess. Startup is slow and unpredictable (around 3-10 sec), so I'm reading from its stdout until I get a line that tells me it's ready before proceeding, in simplified form: import subprocess proc = subprocess.Popen(['server', 'args'], stdout=subprocess.PIPE) while proc.stdout.readline() != Ready.\n: pass Now I can start communicating with the server, but I eventually realised that as I'm no longer reading stdout, the pipe buffer will fill up with output from the server and before long it blocks and the server stops working. I can't keep reading because that will block - there won't be any more output until I send some input, and I don't want it in any case. To try to fix this I added: proc.stdout = os.path.devnull which has the effect of stopping the server from failing, but I'm not convinced it's doing what I think it is. If I replace devnull in the above line with a real file, it stays empty although I know there is more output, which makes me think it hasn't really worked. Simply closing stdout also seems to stop the crashes, but doesn't that mean it's still being written to, but the writes are just silently failing? In either case I'm wary of more elusive bugs arising from misdirected stdout. Is it possible to re-assign the stdout of a subprocess after it has started? Or just close it? What's the right way to read stdout up to a given line, then discard the rest? Thanks, john -- http://mail.python.org/mailman/listinfo/python-list
Re: Reassign or discard Popen().stdout from a server process
On Tue, Feb 1, 2011 at 12:30 AM, John O'Hagan m...@johnohagan.com wrote: I'm starting a server process as a subprocess. Startup is slow and unpredictable (around 3-10 sec), so I'm reading from its stdout until I get a line that tells me it's ready before proceeding, in simplified form: import subprocess proc = subprocess.Popen(['server', 'args'], stdout=subprocess.PIPE) while proc.stdout.readline() != Ready.\n: pass Now I can start communicating with the server, but I eventually realised that as I'm no longer reading stdout, the pipe buffer will fill up with output from the server and before long it blocks and the server stops working. I can't keep reading because that will block - there won't be any more output until I send some input, and I don't want it in any case. To try to fix this I added: proc.stdout = os.path.devnull which has the effect of stopping the server from failing, but I'm not convinced it's doing what I think it is. If I replace devnull in the above line with a real file, it stays empty although I know there is more output, which makes me think it hasn't really worked. Indeed. proc.stdout is a file, whereas os.devnull is merely a path string; the assignment is nonsensical type-wise. Simply closing stdout also seems to stop the crashes, but doesn't that mean it's still being written to, but the writes are just silently failing? In Based on some quick experimentation, yes, more or less. either case I'm wary of more elusive bugs arising from misdirected stdout. Is it possible to re-assign the stdout of a subprocess after it has started? I think that's impossible. (Most of Popen's attributes probably should be read-only properties to clarify that such actions are don't have the intended effect.) What's the right way to read stdout up to a given line, then discard the rest? I would think calling Popen.communicate() after you've reached the given line should do the trick. http://docs.python.org/library/subprocess.html#subprocess.Popen.communicate Just ignore its return value. However, that does require sending the input all at once in a single chunk, which it sounds like may not be feasible in your case; if so, I have no idea how to do it cleanly. Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 4:39 am, rantingrick rantingr...@gmail.com wrote: IDLE: A cornicopia of mediocrity and obfuscation. -- by Rick Johnson IDLE --which is the Python Integrated Development and Learning Environment-- was once the apple of Guido's eye but has since degenerated into madness many years ago and remains now as the shining jewel show piece on the proverbial python wall of shame. A once mighty dream of programming for everyone that is now nothing more than an example of how NOT to program. IDLE contains some of the worst code this community has created. Bad design patterns, tacked on functionality, blasphemous styling, and piss poor packaging. There seems to be no guiding goals or game-plan. And year after year if IDLE *does* get any attention it's just more haphazard code thrown into the mix by someone who has gone blind from reading the source. However we cannot blame the current maintainer (if any such even exists!) because NOBODY can maintains such a spaghetti mess that this package has become! If we would have had a proper game plan from day one i believe we could have avoided this catastrophe. Follows is an outline of the wrongs with some suggestions to right them... * First of all the main two modules PyShell and EditorWindow are laid out in such a non sequential way that it is virtually impossible to follow along. We should have had a proper app instance from which all widgets where combined. The main app should have followed a common sense sequential mentality of... * subclassing the tk.Toplevel * initializing instance variables * creating the main menu * creating the sub widgets * declaring internal methods * declaring event handlers * then interface/generic methods. This is the recipe for order AND NOT CHAOS! What we have now is utter chaos! When we have order we can read source code in a sequential fashion. When we have order we can comprehend what we read. And when we have order we can maintain a library/package with ease. However sadly we DO NOT have order, we have CHAOS, CHAOS, and more CHAOS! * The underlying sub widgets should have started with their own proper order of declared initialization. And all events should be handled in the widget at hand NOT outsourced to some other class! * One of the biggest design flaws is the fact that outside modules manipulate the main editor/pyshells events. This is a terrible way to code. For example the AutoCompleteWindow takes over the tab event #-- Puesdo Code --# # in editor window __init__ self.autocomplete = AutoComplete(blah) # in editor window onKeyPress(blah) if key == 'Tab' and blah: self.autocomplete.show_tip(blah) elif key == 'Escape' and acw.is_visibe(): self.autocomplete.hide() This is a bad design! The main editor window should handle all its own events AND THEN call outside class methods when needed. We don't want Mommy classes telling the kids what to do, when to eat, when to sleep, and when to excrete! We should create our objects with the virtue of self reliance and responsibility!. The Colorizer, ParenMatch, textView, TreeWidget, CallTips, and many other modules are guilty of event stealing also. Event functionality must be handled in the widget itself, NOT stolen and handled in an outside class. When we split up sequential code we get CHAOS! * Another bad choice was creating custom reusable widgets (Tabbedpages, FindDialog, ReplaceDialog, etc...) and leaving them in idlelib. These should have been moved into the lib-tk module where they would be more visible to python programmers AND we could reduce the cruft in the idlelib! Remember, when we create more files, folders, and objects we create CHAOS. And nobody can learn from CHAOS! * Another blasphemy is the fact that every module should include some sort of test to display its usage. If the module is a GUI widget then you MUST show how to use the widget in a window. Sadly like all everything else, idlelib is devoid of examples and testing. And the very few tests that DO exists just blow chunks! * Last but not least idlelib does not follow PEP8 or ANY convention. So much so that it seems the developers snubbed their nose at such conventions! We are missing doc strings and comments. We have built- ins being re-bound! Just code horror after code horror. These are just the top of the list. The peak of a huge iceberg that threatens to sink the community in the arms of chaos never to return. I am beginning to believe that this community is either made of amateurs due to this lackluster code in the stdlib. However it could be that the folks are really professional and refuse to work on such a horrible code base (which i understand). I am going with the latter. When are we going to demand that these abominations be rectified? How much longer must we wait? A year? Ten years?... i don't think Python will survive another ten years with this attitude of
Re: multiple values for keyword argument
Patty wrote: pa...@cruzio.com wrote: I have been avoiding understanding this 'self', [snip] Regards, Patty What is to be understood ?? self references the instance. Did I miss something ? JM Yes, there was more. And it's been fully explained at this point. Patty Hmm... I re-read the thread just in case ... Anyway. I'd like to read suggestions for self replacements... Currently 'yo' have been proposed. I'm just curious, I promise I won't make any comment :D JM -- http://mail.python.org/mailman/listinfo/python-list
Installing Suds for Python 2.6.1 on Mac OS X
I'd like to test my SOAP-based web service from Textmate (PyMate) however I'm running into some trouble trying to get suds configured on my Mac. I was able to install it from Terminal however I'm getting the message each time I run the script: ImportError: No module named suds What do you recommend I do? I think it might have something to do with the PYTHONPATH but I have no idea where this is? -- http://mail.python.org/mailman/listinfo/python-list
Re: Installing Suds for Python 2.6.1 on Mac OS X
On Tue, Feb 1, 2011 at 2:43 AM, Darkside Android darksideandr...@gmail.com wrote: I'd like to test my SOAP-based web service from Textmate (PyMate) however I'm running into some trouble trying to get suds configured on my Mac. I was able to install it from Terminal however I'm getting the message each time I run the script: Can you successfully import it when running Python in Terminal? ImportError: No module named suds What do you recommend I do? I think it might have something to do with the PYTHONPATH but I have no idea where this is? Have you set the TM_PYTHON Shell Variable appropriately in TextMate's Preferences (Advanced section)? Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 4:20 am, flebber flebber.c...@gmail.com wrote: Sorry Rick too boringtrying to get bored people to bite at your ultra lame post yawn... Well reality and truth both has a tendency to be boring. Why? Well because we bathe in them daily. We have come accustomed, acclimated, and sadly complacent of the ill state of our stdlib. Yes, boring. However we must be aware of these things. -- http://mail.python.org/mailman/listinfo/python-list
argparse: combine current option value with positional argument
I'd like to capture the current value of an option --prefix=whatever along
with a positional value as it is seen by argparse.
Example:
python script.py -p1 alpha beta -p2 gamma -p3
should result in a list
[(1, alpha), (1, beta), (2, gamma)]
Here's a working script that uses --name=some-value instead of of just
some-value:
$ cat tmp.py
import argparse
parser = argparse.ArgumentParser()
parser.add_argument(-p, --prefix)
parser.add_argument(-n, --name)
class Namespace(object):
def __init__(self):
self.pairs = []
self.prefix = None
def set_name(self, value):
if value is not None:
self.pairs.append((self.prefix, value))
name = property(None, set_name)
ns = Namespace()
parser.parse_args(namespace=ns)
print ns.pairs
$ python tmp.py -p1 -nalpha -nbeta -p2 -ngamma
[('1', 'alpha'), ('1', 'beta'), ('2', 'gamma')]
However, modifying the --name option to a positional with
parser.add_argument(name, nargs=*)
results in an error:
$ python tmp2.py -p1 alpha beta -p2 gamma
usage: tmp2.py [-h] [-p PREFIX] [name [name ...]]
tmp2.py: error: unrecognized arguments: gamma
Am I missing a simple way to avoid that?
Peter
PS: I've not yet used the source ;)
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Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Tue, 2011-02-01 at 04:38 -0800, rantingrick wrote: On Feb 1, 4:20 am, flebber flebber.c...@gmail.com wrote: Sorry Rick too boringtrying to get bored people to bite at your ultra lame post yawn... Well reality and truth both has a tendency to be boring. Even more true of pointless and drawn-out pontificating. If you despise IDLE so much - use one of the many other IDE's that support Python; move on. -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 6:53 am, Adam Tauno Williams awill...@whitemice.org wrote: If you despise IDLE so much - use one of the many other IDE's that support Python; move on. Not exactly. Can we continue to ignore such lackluster and shabby code in OUR stdlib. Remember the code reflects on all of us! -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Tuesday, February 1, 2011 9:38:26 AM UTC-4, Richard quot;rantingrickquot; Johnson wrote: On Feb 1, 6:53 am, Adam Tauno Williams awil...@whitemice.org wrote: If you despise IDLE so much - use one of the many other IDE's that support Python; move on. Not exactly. Can we continue to ignore such lackluster and shabby code in OUR stdlib. Remember the code reflects on all of us! Could you enlighten us and tell us what code YOU contributed to the stdlib? André -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
rantingrick wrote: On Feb 1, 6:53 am, Adam Tauno Williams awill...@whitemice.org wrote: If you despise IDLE so much - use one of the many other IDE's that support Python; move on. Not exactly. Can we continue to ignore such lackluster and shabby code in OUR stdlib. Remember the code reflects on all of us! Can we continue to ignore such lackluster and shabby trolls in OUR mailing list ? Fortunately, the behavior of one does not reflect the behavior of us all. In a more serious way, just count the people who second your prosposition. It's around 0. It is usually a good sign that you're wrong. This rule kinda applies to anyone, don't take it personnaly. ... or maybe you're just trolling, in which case you can thank me for feeding. JM -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
Man you're a real comedian. This is a hilarious thread. Keep up the good work! On Tue, 2011-02-01 at 05:38 -0800, rantingrick wrote: On Feb 1, 6:53 am, Adam Tauno Williams awill...@whitemice.org wrote: If you despise IDLE so much - use one of the many other IDE's that support Python; move on. Not exactly. Can we continue to ignore such lackluster and shabby code in OUR stdlib. Remember the code reflects on all of us! -- http://mail.python.org/mailman/listinfo/python-list
Re: Installing Suds for Python 2.6.1 on Mac OS X
On Feb 1, 4:30 am, Chris Rebert c...@rebertia.com wrote: On Tue, Feb 1, 2011 at 2:43 AM, Darkside Android darksideandr...@gmail.com wrote: I'd like to test my SOAP-based web service from Textmate (PyMate) however I'm running into some trouble trying to get suds configured on my Mac. I was able to install it from Terminal however I'm getting the message each time I run the script: Can you successfully import it when running Python in Terminal? ImportError: No module named suds What do you recommend I do? I think it might have something to do with the PYTHONPATH but I have no idea where this is? Have you set the TM_PYTHON Shell Variable appropriately in TextMate's Preferences (Advanced section)? Cheers, Chris --http://blog.rebertia.com Thanks for the feedback Chris. I was able to figure it out this morning. I needed to run 'sudo easy_install -z suds' from Terminal. -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 8:27 am, Jean-Michel Pichavant jeanmic...@sequans.com wrote: In a more serious way, just count the people who second your prosposition. It's around 0. It is usually a good sign that you're wrong. This rule kinda applies to anyone, don't take it personnaly. Well your statment completely ignores the silent majority. Are you telling me that this sloth of trolls, minions, and flamers that have so far replied are represetative of this fine community. Gawd i hope NOT!. Here is a list of the compiled personalities... #-- Embedded Trolls and Minions --# Steven D'Aprano(smart and witty (annoying) troll) Stephan Hansen (controversy troll) Ben Finny (haughty troll) alex23(angry/dangerous troll) Tyler Littlefeild(confused troll) Bryan ? (annoying troll) Corey Richarson Nicholas Devenish Alexander Kapps rusi ? Andre ? Geremy Condra (troll-wagoneer) Ethan Furman Noah Hall Adam Skutt Arndt Rodger Schnieder Mark Roseman (Tkinter's minion) #-- Occasonal Flamers --# Micheal Torrie Grant Edwards MRAB Thomas L Shinnink Peter Otten Giampaolo Rodola Giacomo Boffi malcom ? Zeissmann Mel Owen Jacobson Robert ? #-- Complete Nobodys --# Bill Felton flebber #-- MIA --# GvR Steve Holden #-- Moderates --# Richard Johnson Terry Reedy Kevin Walzer Octavian Rasnita Robert Kern Brenden Simon Tommy Grav Martin V Leowis Ian ? Tim Chase CM Bob Martin Neil Hodgenson Robin Dunn Benjamin Kaplan Jerry Hill Patty ? Martin Gregorie Albert van der Horst Martin P Hellwig jmfauth Steven Howe Antoine Pitrou Hank Fay Katie T Gerry Reno Stefen Behnel 26 moderates 31 trolls, minions, sockpuppets, and or flamers 2 missing in action = This community needs serious help! -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Tue, Feb 1, 2011 at 3:14 PM, rantingrick rantingr...@gmail.com wrote: #-- Embedded Trolls and Minions --# Steven D'Aprano(smart and witty (annoying) troll) Stephan Hansen (controversy troll) Ben Finny (haughty troll) alex23(angry/dangerous troll) Tyler Littlefeild(confused troll) Bryan ? (annoying troll) Corey Richarson Nicholas Devenish Alexander Kapps rusi ? Andre ? Geremy Condra (troll-wagoneer) Ethan Furman Noah Hall Adam Skutt Arndt Rodger Schnieder Mark Roseman (Tkinter's minion) These people, including myself, aren't trolls nor minions. They just don't agree with you. And on the topic of IDLE, I agree the coding's not great, but I disagree with it being a problem for the Python community. I've never, ever seen a thread saying OMG, WHAT DOES THIS IDLE SOURCE CODE EXTRACT MEAN? PLEASE HELP, I CAN'T UNDERSTAND IDLE, THEREFORE I CAN NOT USE Tkinter! I'm leaving Python, Visual Basic's for me from now on! NO DAMN IDLE TO MESS UP EVERYTHING, YOU SEE? -- http://mail.python.org/mailman/listinfo/python-list
Re: Reassign or discard Popen().stdout from a server process
On Tue, 1 Feb 2011, Chris Rebert wrote: On Tue, Feb 1, 2011 at 12:30 AM, John O'Hagan m...@johnohagan.com wrote: I'm starting a server process as a subprocess. Startup is slow and unpredictable (around 3-10 sec), so I'm reading from its stdout until I get a line that tells me it's ready before proceeding, in simplified form: import subprocess proc = subprocess.Popen(['server', 'args'], stdout=subprocess.PIPE) while proc.stdout.readline() != Ready.\n: pass Now I can start communicating with the server, but I eventually realised that as I'm no longer reading stdout, the pipe buffer will fill up with output from the server and before long it blocks and the server stops working. I can't keep reading because that will block - there won't be any more output until I send some input, and I don't want it in any case. To try to fix this I added: proc.stdout = os.path.devnull which has the effect of stopping the server from failing, but I'm not convinced it's doing what I think it is. If I replace devnull in the above line with a real file, it stays empty although I know there is more output, which makes me think it hasn't really worked. Indeed. proc.stdout is a file, whereas os.devnull is merely a path string; the assignment is nonsensical type-wise. My mistake, of course I meant open(os.path.devnull). Simply closing stdout also seems to stop the crashes, but doesn't that mean it's still being written to, but the writes are just silently failing? In Based on some quick experimentation, yes, more or less. either case I'm wary of more elusive bugs arising from misdirected stdout. Is it possible to re-assign the stdout of a subprocess after it has started? I think that's impossible. (Most of Popen's attributes probably should be read-only properties to clarify that such actions are don't have the intended effect.) I don't doubt what you say, but attempting to assign it does seem to do something, as it consistently stops the crashes which occur otherwise. What it does, I have no idea. What's the right way to read stdout up to a given line, then discard the rest? I would think calling Popen.communicate() after you've reached the given line should do the trick. http://docs.python.org/library/subprocess.html#subprocess.Popen.communicate Just ignore its return value. However, that does require sending the input all at once in a single chunk, which it sounds like may not be feasible in your case; if so, I have no idea how to do it cleanly. Yes, unfortunately I need to send a lot of precisely-timed short strings, and communicate() blocks after the first call. I tried calling stdout.readline() the right number of times after each input, but that seems fiddly and fragile - for example the number of lines of output is not guaranteed and may vary in the case of errors, and also the extra reads had a noticeable effect on latency, which is important in this case. So far my best bet seems to be closing stdin, which doesn't seem very clean, but it does what I want and seems to be just as fast as using stdin=open(os.devnull) in the Popen call in the first place. Thanks, John -- http://mail.python.org/mailman/listinfo/python-list
How can I tell if I am inside a context manager?
I'd like to know how (perhaps with the inspect module) I can tell if I am running in a context manager. e.g. class f(): def __init__(s): pass def __enter__(s): return s def __exit__(s,a,b,c): return None def g(): x = f() # insert code here to return False, since I am not in a context manager on f: with h as f(): # insert code here to return True, since I am in a context manager on f: -- Gerald Britton -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for Remote Python Project
On Feb 1, 8:45 am, Alan Meyer amey...@yahoo.com wrote: On 01/29/2011 04:19 PM,joy99wrote: Dear Room, I am a Python Programmer from India(New Delhi Region), and I worked for quite a long time in Bangalore. I have been working in Python for the last 4 years or so. I have successfully built around 15 projects in Python. I am looking for some remote Python Projects, which can be done from home. If any one knows of anything, I may be helpful enough. Best Regards, Subhabrata. Subharata, Would you be willing to tell us what a programmer with your level of experience typically charges per hour for his services? I'm not in a position to hire anyone, I'm just a programmer myself. But I'm curious about rates in India vs. the U.S., where I live and work. Thanks and good luck with your efforts to get work. Alan Alan, Usually if any one pays USD 1 per hr in India it is good, USD 2 per hour is handsome, very rare people pay USD 3 to 4 per hour, but I know some people in India charge USD 20/25 per line I do not know their hourly rate but as I know they just run some consultancy and do not do any job. The people who give in range of USD 1-4/hr also gives some perks like performance related bonus, housing, medical, etc. But again rate varies. Delhi/Gurgaon gives highest pay, followed by Bangalore/Hyderabad, then comes Chennai, Mumbai gives moderate, Kolkata/Mysore/Bhubaneswar are casual players, they neither have serious places of work nor any good environment. In India, lots of development goes on in the government sector but right now they are paying very high, generally they pay 20-30% lower than private sector, but job security is there. Hope this information helps. Best Regards, Subhabrata. -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On 2/1/2011 12:13 AM, rantingrick wrote: On Jan 31, 4:17 pm, Kevin Walzerk...@codebykevin.com wrote: Rick, Yes. IDLE is first and foremost a tool to get work done. However we should not ignore the fact that IDLE could also be a great learning resource for Tkinter GUI's and other subjects. Why not clean up the code base? We could start small. First, move the custom widgets like textView, Tabbedpages, FindDialog, ReplaceDialog, and TreeWidget into the lib-tk for others to use more freely. Then we can modify the event robbers CallTips, ParenMatch, and ColorDelegator. Perhaps, after the repository moves from svn to hg, some 'we' will. Maybe by then, you will have had your fun and be ready to work. Maybe Kevin would help a bit. Such a project would be carried out on the tracker and idle-sig mailing list. Normal decorum would be required -- no ranting or insulting. The first thing to do, in my opinion, is to review existing patches on the tracker. Well some changes and improvements can be made to the UI as well. There is patch on the tracker, by G. Polo, as I remember, to replace tk widgets with the newer themed ttk widgets. It needs to be reviewed and tested. To make a big change (or proceed with any refactoring) better automated testing would be very useful. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I tell if I am inside a context manager?
On Dienstag 01 Februar 2011, Gerald Britton wrote: I'd like to know how (perhaps with the inspect module) I can tell if I am running in a context manager. class f(object): def __init__(self): self.inContext = False def __enter__(self): self.inContext = True return self def __exit__(self,a,b,c): self.inContext = False return None x = f() print 'not within:', x.inContext with f() as h: print 'within:', h.inContext -- Wolfgang -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 9:26 am, Noah Hall enali...@gmail.com wrote: On Tue, Feb 1, 2011 at 3:14 PM, rantingrick rantingr...@gmail.com wrote: #-- Embedded Trolls and Minions --# Steven D'Aprano(smart and witty (annoying) troll) Stephan Hansen (controversy troll) Ben Finny (haughty troll) alex23(angry/dangerous troll) Tyler Littlefeild(confused troll) Bryan ? (annoying troll) Corey Richarson Nicholas Devenish Alexander Kapps rusi ? Andre ? Geremy Condra (troll-wagoneer) Ethan Furman Noah Hall Adam Skutt Arndt Rodger Schnieder Mark Roseman (Tkinter's minion) These people, including myself, aren't trolls nor minions. They just don't agree with you. No they are trolls and they have demonstrated trollish behavior on many occasions. Some have even threatened to kill me. Can you believe that? If you will look over my moderate list you will see that many do not agree with me completely however they express their disagreement in a moderate way. On the other hand the trolls and flamers just hurl insults and inflammatory speech. The trolls and flamers don't offer any argument to back up their statements. They only hurl more emotional bile. And on the topic of IDLE, I agree the coding's not great, See now you are offering truth in your argument! Keep this up and i'll move you over to the occasional flamers group. Then over time, if you can demonstrate an ability to engage in lively discussion based on facts and not emotion, i *may* even move you into the moderates group. I believe in every troll there is a rational person just waiting to break free. but I disagree with it being a problem for the Python community. I've never, ever seen a thread saying OMG, WHAT DOES THIS IDLE SOURCE CODE EXTRACT MEAN? PLEASE HELP, Thats because even the maintainers of IDLE don't understand completely how it works. It is a true nightmare of code horror -- of *epic* proportions! I CAN'T UNDERSTAND IDLE, THEREFORE I CAN NOT USE Tkinter! I'm leaving Python, Visual Basic's for me from now on! NO DAMN IDLE TO MESS UP EVERYTHING, YOU SEE? Well this would be expected of an emotionally driven creature. One who cannot wield the tools of reason and logic. I pity these poor souls just as i pity the trolls in the troll group. But like they say: When your at the bottom there is only one direction to go... Strait up! Sadly some of these folks may be suffering from gimbal lock with their up vector pointing strait down. -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On 2/1/11 10:54 AM, Terry Reedy wrote: Maybe Kevin would help a bit. Probably not--IDLE is good enough for my needs. I've submitted some (rather extensive) patches for things that annoyed me and got in my way, and they eventually made it in. (The classic open source pathway--scratching my own itch.) Beyond that, though, hacking on IDLE isn't a project I have time for. --Kevin -- Kevin Walzer Code by Kevin http://www.codebykevin.com -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 9:54 am, Terry Reedy tjre...@udel.edu wrote: On 2/1/2011 12:13 AM, rantingrick wrote: On Jan 31, 4:17 pm, Kevin Walzerk...@codebykevin.com wrote: Rick, Yes. IDLE is first and foremost a tool to get work done. However we should not ignore the fact that IDLE could also be a great learning resource for Tkinter GUI's and other subjects. Why not clean up the code base? We could start small. First, move the custom widgets like textView, Tabbedpages, FindDialog, ReplaceDialog, and TreeWidget into the lib-tk for others to use more freely. Then we can modify the event robbers CallTips, ParenMatch, and ColorDelegator. Perhaps, after the repository moves from svn to hg, some 'we' will. Well the best attribute of IDLE is backward compatibility -- there is none to worry about. IDLE is not a module with an interface, it's just a tool. So we could change anything we want without worry of causing code breakage. There is not good reason NOT to fix IDLE. Maybe Kevin would help a bit. I was hoping he would get involved however his last post proved otherwise. I know he has his own projects however he would have been a valuable asset for the ttk theming stuff. Such a project would be carried out on the tracker and idle-sig mailing list. Normal decorum would be required -- no ranting or insulting. The first thing to do, in my opinion, is to review existing patches on the tracker. Agreed. Terry (or anyone) can you give some link to info on hg so i can study up on this topic? Thanks Well some changes and improvements can be made to the UI as well. There is patch on the tracker, by G. Polo, as I remember, to replace tk widgets with the newer themed ttk widgets. It needs to be reviewed and tested. To make a big change (or proceed with any refactoring) better automated testing would be very useful. Yes turning on the themes would be a huge improvement. I also wished IDLE would look better. -- http://mail.python.org/mailman/listinfo/python-list
Re: argparse: combine current option value with positional argument
On Feb 1, 6:59 am, Peter Otten __pete...@web.de wrote: I'd like to capture the current value of an option --prefix=whatever along with a positional value as it is seen by argparse. Have you seen the handy optphart module yet? I believe its in alpha2 currently but very stable. http://tinyurl.com/optphart -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
See now you are offering truth in your argument! Keep this up and i'll move you over to the occasional flamers group. Then over time, if you can demonstrate an ability to engage in lively discussion based on facts and not emotion, i *may* even move you into the moderates group. O no, whatever shall I do. I apparently have no hope of being moved into the moderates group because I don't agree with him. I hope everyone will excuse me now, I must dash off to slit my wrists in a tub of warm water and listen to Free Bird, while morning over the fact that I may *never* get moved into RR's moderate's group. Tisk tisk. -- http://mail.python.org/mailman/listinfo/python-list
How can I tell if I am inside a context manager?
On Dienstag 01 Februar 2011, Gerald Britton wrote:
I'd like to know how (perhaps with the inspect module) I can
tell if I am running in a context manager.
class f(object):
def __init__(self):
self.inContext = False
def __enter__(self):
self.inContext = True
return self
def __exit__(self,a,b,c):
self.inContext = False
return None
x = f()
print 'not within:', x.inContext
with f() as h:
print 'within:', h.inContext
yes, of course, but in this case I may not modify the class. try it with open:
x = open('somefile')
# return false since not in a context
with open('somefile') as x
# return true since in a context.
--
Wolfgang
--
Gerald Britton
--
http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 10:29 am, Littlefield, Tyler ty...@tysdomain.com wrote: I hope everyone will excuse me now, I must dash off to slit my wrists in a tub of warm water and listen to Free Bird, Free Bird! hmm, I would have chosen Chopin's nocturne 48-1 or 72-1 if i was feeling rather melancholy at the moment. Then there is always the funeral march if you really want to lay it on thick. However the march does have a rather lengthy hopeful section that may make you give second thoughts. Or perhaps the Berceuse in D-flat Major as a final glorious celebration of life as one journeys beyond the edge of transcendence. If there is a heaven it must sound like this... http://il.youtube.com/watch?v=8TQ-AXJZqtg ...only a man who suffered so greatly can know what true beauty is. RIP Chopin. If you're going to met your end it should be at least to a piece that is truly timeless -- not some reefer+jack induced rockabilly ballad! -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 10:26 am, rantingrick rantingr...@gmail.com wrote: On Feb 1, 10:29 am, Littlefield, Tyler ty...@tysdomain.com wrote: I hope everyone will excuse me now, I must dash off to slit my wrists in a tub of warm water and listen to Free Bird, Free Bird! hmm, I would have chosen Chopin's nocturne 48-1 or 72-1 if i was feeling rather melancholy at the moment. Then there is always the funeral march if you really want to lay it on thick. However the march does have a rather lengthy hopeful section that may make you give second thoughts. Or perhaps the Berceuse in D-flat Major as a final glorious celebration of life as one journeys beyond the edge of transcendence. If there is a heaven it must sound like this... http://il.youtube.com/watch?v=8TQ-AXJZqtg ...only a man who suffered so greatly can know what true beauty is. RIP Chopin. If you're going to met your end it should be at least to a piece that is truly timeless -- not some reefer+jack induced rockabilly ballad! Go away. You are easily one of the worst (and definitely most annoying) person I've encountered in person or online, which is saying something because I used to frequent 4chan. -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I tell if I am inside a context manager?
On Tue, Feb 1, 2011 at 11:34 AM, Gerald Britton gerald.brit...@gmail.comwrote:
x = open('somefile')
# return false since not in a context
with open('somefile') as x
# return true since in a context.
Perhaps something like this:
x = open('somefile')
if hasattr(x, '__enter__'):
return false
with open('somefile') as x:
do_something()
--
Jerry
--
http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On 2011-02-01 00:13:06 -0500, rantingrick said: On Jan 31, 4:17 pm, Kevin Walzer k...@codebykevin.com wrote: Yes. IDLE is first and foremost a tool to get work done. However we should not ignore the fact that IDLE could also be a great learning resource for Tkinter GUI's and other subjects. Why not clean up the code base? We could start small. First, move the custom widgets like textView, Tabbedpages, FindDialog, ReplaceDialog, and TreeWidget into the lib-tk for others to use more freely. Then we can modify the event robbers CallTips, ParenMatch, and ColorDelegator. Just small steps Kevin. It all starts with babysteps. At least we would be doing something. Currently we are sitting around waiting for a miracle to happen, and problems are solved by methods, not miracles! Well some changes and improvements can be made to the UI as well. Fork it and do it! -- Robert -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 11:52 am, Red John redjohn...@gmail.com wrote: Go away. You are easily one of the worst (and definitely most annoying) person I've encountered in person or online, which is saying something because I used to frequent 4chan. Hmm, that coming from someone who has two posts in this group. And the last he posted was a year ago! Alright, let me add you to the proper category... py troll_group.append(Red John) -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I tell if I am inside a context manager?
Perhaps something like this:
x = open('somefile')
if hasattr(x, '__enter__'):
return false
with open('somefile') as x:
do_something()
class f():
def __init__(s): pass
def __enter__(s): return s
def __exit__(s,a,b,c): return None
x = f()
hasattr(x, '__enter__')
True
with f() as x:
hasattr(x,'__enter__')
True
As you can see, the object has a '__enter__' method regardless of how
it was created. Whatever the test, it needs to return False in the
first case and True in the second case, without modifying the class
definition.
Gerald Britton
--
http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
rantingrick wrote: Terry (or anyone) can you give some link to info on hg so i can study up on this topic ? http://mercurial.selenic.com/ -- Stanley C. Kitching Human Being Phoenix, Arizona -- http://mail.python.org/mailman/listinfo/python-list
Re: multiple values for keyword argument
- Original Message - From: Jean-Michel Pichavant jeanmic...@sequans.com To: Patty pa...@cruzio.com Cc: python-list@python.org Sent: Tuesday, February 01, 2011 2:27 AM Subject: Re: multiple values for keyword argument Patty wrote: pa...@cruzio.com wrote: I have been avoiding understanding this 'self', [snip] Regards, Patty What is to be understood ?? self references the instance. Did I miss something ? JM Yes, there was more. And it's been fully explained at this point. Patty Hmm... I re-read the thread just in case ... Anyway. I'd like to read suggestions for self replacements... Currently 'yo' have been proposed. I'm just curious, I promise I won't make any comment :D JM Hi Jean-Michel - I'm sorry. I was getting sensitive about being criticized (or trying to re-explain what I learned and getting it terribly mangled). As it turns out - Westley Martinez pointed out the link about the usage of 'self' : http://en.wikipedia.org/wiki/Self_(computer_science)and these specific two lines showed me why I had been thinking I (we) could replace the word 'self' with any descriptive word (variable) I want. I was thinking of 'self' as a variable and not In Python, there is no keyword for this, but it exists as the name of the obligatory first argument of all member functions. Conventionally, the name self is used. And since I come from a C background, I thought I could do the following (which the wiki page mentions) :} ) , thus I wanted to use an invented variable name that makes sense to me and helped me as programmer remember where I was in my program when I went and tried to reassign new values, basically override my object at will. But this is what I did not realize: the assignment does not modify the original object, only changing which object that the rest of the code in the method refers to Some languages, such as Objective-C, allow assignment to self, although it is deprecated. And then after the thread ended - I read this in the wiki page which totally explains everything -- Early versions of C++ would let the this pointer be changed; by doing so a programmer could change which object a method was working on and I learned C++ from an early version so this is Precisely what I thought I could do -- I was envisioning having my object (member function) and then as my program forked different paths, well I thought I could do this very program design. Hopefully that makes more sense as to why I would change the 'name of the obligatory first argument of all member functions'. As other people pointed out, you _can_ make up your own name, 'yo' or anything else, it is by _convention_ to use 'self' and by doing your own thing, could develop a bad habit. Regards, Patty -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
In the grand scope of things...you're all boring. -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On 2/1/2011 11:18 AM, rantingrick wrote: Well the best attribute of IDLE is backward compatibility -- there is none to worry about. IDLE is not a module with an interface, it's just a tool. So we could change anything we want without worry of causing code breakage. There is not good reason NOT to fix IDLE. That is similar to my view. Of course, there will be an tracker issue and list discussion for any major change. I have even thought it should perhaps be moved to the Tools/ directory, but installation of that is optional. Google codesearch can be used to see what, if anything, anyone imports from idlelib. Agreed. Terry (or anyone) can you give some link to info on hg so i can study up on this topic? Thanks Joel Spolsky's tutorial is highly regarded as an easier intro than the reference manual. I am about to reread it myself. http://hginit.com/ -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: Use the Source Luke
Tim Wintle wrote: However I think the biggest changes that have probably happened with python itself are: (1) More users for whom this is their first language. (2) CS courses / training not teaching C (or pointer-based languages). (2) is especially important IMO - under half of the python developers I have regularly worked with would feel comfortable reading C - so for the other half reading C source code probably isn't going to help them understand exactly what's going on (although in the long run it might help them a lot) I'd just like to note that (2) applies to me in spades. I'm not sure how many other people are in my position, but I use Python because I like how it works, and I do not want to use C because I find it insufferable. I quite frequently look at the source of Python modules, although more often third-party modules than the standard lib, but if I have to look at the C source of something I basically stop and find another solution (possibly abandoning Python altogether for that usage). I think, in general, the less anyone needs to know C even exists, the better for Python; likewise, the more that people have to mention the existence of C in a Python context, the worse for Python. This may be a somewhat extreme viewpoint, but that's my position. -- --OKB (not okblacke) Brendan Barnwell Do not follow where the path may lead. Go, instead, where there is no path, and leave a trail. --author unknown -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I tell if I am inside a context manager?
On Tue, Feb 1, 2011 at 1:38 PM, Gerald Britton gerald.brit...@gmail.comwrote: As you can see, the object has a '__enter__' method regardless of how it was created. Whatever the test, it needs to return False in the first case and True in the second case, without modifying the class definition. I'm sorry, I completely misunderstood your question. I thought you were asking how you could tell if something provided a context manager. Based on the PEP[1], I don't see any generic way to tell if you are within a context manager. 1: http://www.python.org/dev/peps/pep-0343/ -- Jerry -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On 1/31/2011 2:17 PM, Kevin Walzer wrote: It certainly would be interesting to see a fresh approach to IDLE... The future of playing with Python is probably Python in a browser window, of which there are several implementations. If you're doing anything serious, you're using a programmer's editor or an IDE. IDLE lives in a narrowing niche between those two points. Maybe it should be killed off. John Nagle -- http://mail.python.org/mailman/listinfo/python-list
Re: multiple values for keyword argument
stuff snipped Here is a list of the compiled personalities... stuff snipped #-- Moderates --# stuff snipped Patty ? stuff snipped 26 moderates 31 trolls, minions, sockpuppets, and or flamers 2 missing in action = This community needs serious help! -- http://mail.python.org/mailman/listinfo/python-list How Embarrassing!! This caused great blushing!! Being categorized on a big email list...also not sure why I am not on the #-- Complete Nobodys --# list. You hit me right in my shy streak. I am really capable of a lot of participation on email lists and considering attending one of the BayPiggies in-person meetings and getting more involved. But I need to get smarter about Python programming first. This might _make_ me go MIAyikes! Patty -- http://mail.python.org/mailman/listinfo/python-list
Re: How can I tell if I am inside a context manager?
Gerald Britton wrote: I'd like to know how (perhaps with the inspect module) I can tell if I am running in a context manager. What's your use-case? ~Ethan~ -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 1, 1:35 pm, John Nagle na...@animats.com wrote: On 1/31/2011 2:17 PM, Kevin Walzer wrote: It certainly would be interesting to see a fresh approach to IDLE... The future of playing with Python is probably Python in a browser window, of which there are several implementations. Hello John, I found skulpt which looks rather interesting. http://www.skulpt.org/ Why do we not have a version of this at python.org so people can get a feel for python right away. Ruby has that Learn Ruby in 20 Minutes thing and so should we. Do you have any links to projects such as this one that you like to share, John? -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On 02/01/2011 03:05 PM, rantingrick wrote: On Feb 1, 1:35 pm, John Nagle na...@animats.com wrote: On 1/31/2011 2:17 PM, Kevin Walzer wrote: It certainly would be interesting to see a fresh approach to IDLE... The future of playing with Python is probably Python in a browser window, of which there are several implementations. Hello John, I found skulpt which looks rather interesting. http://www.skulpt.org/ Why do we not have a version of this at python.org so people can get a feel for python right away. Ruby has that Learn Ruby in 20 Minutes thing and so should we. Do you have any links to projects such as this one that you like to share, John? http://people.csail.mit.edu/pgbovine/python/ Not quite an interpreter, and certainly has its limits, for example, it will only let you run so many steps before not letting you go on. I think it's a decent learning tool, but the visualisation is what makes it shine, IMO. That version uses python 2.5, there is also a version that uses python 3.1: http://netserv.ict.ru.ac.za/python3_viz/ -- http://mail.python.org/mailman/listinfo/python-list
how to get and search a html file from a website
Hi all! i'm writing a notification program and i'm quite new to python. The program have to check every 5 minutes a particular website and alert me when a particular sentence (user online) is in the html. i've thinked to use a text browser (lynx) to retrieve the html and parse the output in python as a normal text file. Do you have any better idea? thanks Medeo -- http://mail.python.org/mailman/listinfo/python-list
Re: how to get and search a html file from a website
Den 01.02.11 22.20, skrev Tracubik:
Hi all!
i'm writing a notification program and i'm quite new to python.
The program have to check every 5 minutes a particular website and alert
me when a particular sentence (user online) is in the html.
i've thinked to use a text browser (lynx) to retrieve the html and parse
the output in python as a normal text file.
Do you have any better idea?
thanks
Medeo
Of course there is a pythonic way :-)
import urllib
urllib.urlretrieve('http://docs.python.org/tutorial/index.html',
'tut.html')
Good luck,
Paul.
--
http://mail.python.org/mailman/listinfo/python-list
XEmacs output from Python
The script name = raw_input(What is your name? ) print Hello, ,name runs fine from the Windows prompt (cmd.exe), but when I run it in a shell buffer under XEmacs, I only see the text What is your name? AFTER I enter some text, so a run looks like this: H:\pythonpython xinput.py x What is your name? Hello, x Is there a workaround? Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: how to get and search a html file from a website
On Wed, Feb 2, 2011 at 7:20 AM, Tracubik affdfsdfds...@b.com wrote: Hi all! i'm writing a notification program and i'm quite new to python. The program have to check every 5 minutes a particular website and alert me when a particular sentence (user online) is in the html. i've thinked to use a text browser (lynx) to retrieve the html and parse the output in python as a normal text file. Do you have any better idea? Assuming the website in question does not provide any useful APIs (sad), then a better approach is to use the urllib library in conjunction with lxml to parse the html in a sensible way (instead of just doing: if foo in s) cheers James -- -- James Mills -- -- Problems are solved by method -- http://mail.python.org/mailman/listinfo/python-list
Re: how to get and search a html file from a website
On 02/01/2011 04:20 PM, Tracubik wrote: Hi all! i'm writing a notification program and i'm quite new to python. The program have to check every 5 minutes a particular website and alert me when a particular sentence (user online) is in the html. i've thinked to use a text browser (lynx) to retrieve the html and parse the output in python as a normal text file. Do you have any better idea? thanks Medeo urllib2 http://docs.python.org/howto/urllib2.html If you need fancy-shmancy parsing, look into: http://docs.python.org/library/htmlparser.html Or you can treat the returned site as a string and just search for that sentence. -- http://mail.python.org/mailman/listinfo/python-list
test: please ignore
Somehow I can't post anymore to gmane. Would like to know why. -- http://mail.python.org/mailman/listinfo/python-list
How to create an entry in the Program menu of Windows?
Hi, I'd like to add menu entry in the Program Menu as part of the installation of an application. Is it possible to do that from Python? Any examples or link? I have not been able to find anything with google... thanks in advance s/ -- http://mail.python.org/mailman/listinfo/python-list
DRY and static attribute for multiple classes.
Hi all, I want to provide an encapsulated static attribute called _registry for several classes. I try to use inheritance in order to make it DRY: all classes inherit from a BaseClass that implements the _registry encapsulation. But with inheritance it doesn't work how I want, because a single instance of the _registry is shared between all of the inherited classes, and I want to have an independent _registry for every class. How can I do that without coping all the code in every class? Many Thanks!! -- http://mail.python.org/mailman/listinfo/python-list
Re: simplest way to create simple standalone wsgi server without import wsgi_lib.server
On 02/01/2011 03:07 AM, Jean-Paul Calderone wrote: On Jan 31, 5:28 pm, Gelonida gelon...@gmail.com wrote: Hi, Normally I use following code snippet to quickly test a wsgi module without a web server. import wsgi_lib.server wsgi_lib.server.run(application, port=port) However Now I'd like to test a small wsgi module on a rather old host ( Python 2.4.3 ) where I don't have means to update python. Is there any quick and easy code snippet / module, performing the same task as my above mentioned lines? Thanks in advance for any hints You didn't mention why you can't update Python, or if that means you can't install new libraries either. However, if you have Twisted 8.2 or newer, you can replace your snippet with this shell command: twistd -n web --port port --wsgi application Thanks Jean-Paul The problem is rather simple. The host in question is not 100% under my control. I can request to have packages installed if they're in the list of available packages. python 2.4 is part of it. twisted is not In the worst case I could request the installation of python virtualenv, the entire gcc tool chain and try to compile twisted, or wsgilib, but I wondered whether there isn't a simple pure python way of starting a wsgi server for test purposes. application is the fully-qualified Python name of your application object. So, for example if you have a module named foo that defines an application name, you would pass foo.application. Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: How to create an entry in the Program menu of Windows?
On Feb 1, 3:43 pm, Diesel die...@e-den.it wrote: I'd like to add menu entry in the Program Menu as part of the installation of an application. Is it possible to do that from Python? Diesel your description is ambiguous at best, might we inquire that you elaborate a wee bit more? Is this application something that YOU created? If so what GUI library did you use? Can you show us some code or a small example? -- http://mail.python.org/mailman/listinfo/python-list
Re: test: please ignore
On 02/01/2011 10:44 PM, Gelonida wrote: Somehow I can't post anymore to gmane. Would like to know why. Now this message arrived. So it seems to work again, though with quite some heavy delay. -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Feb 2, 4:14 am, rantingrick rantingr...@gmail.com wrote: On Feb 1, 8:27 am, Jean-Michel Pichavant jeanmic...@sequans.com wrote: In a more serious way, just count the people who second your prosposition. It's around 0. It is usually a good sign that you're wrong. This rule kinda applies to anyone, don't take it personnaly. Well your statment completely ignores the silent majority. Are you telling me that this sloth of trolls, minions, and flamers that have so far replied are represetative of this fine community. As a member of this silent majority - we care less about IDLEs code quality than all the others that did actually care enough to even reply to you. Now stop your annoying trolling and either start working on your IDLE fork or shut up. Nobody else who agrees with you (there might be someone out there) has been ever been motivated enough to initiate this work by themselves, so unless YOU start it - it probably is never going to happen. Once it is underway you might attract some other people interested in helping to refactor or recode IDLE - but you won't know that unless you start work on it. But I think we all know exactly what you are actually going to keep doing though. -- Cheers Anton -- http://mail.python.org/mailman/listinfo/python-list
Re: simplest way to create simple standalone wsgi server without import wsgi_lib.server
On Feb 1, 2:01 pm, Gelonida gelon...@gmail.com wrote: On 02/01/2011 03:07 AM, Jean-Paul Calderone wrote: On Jan 31, 5:28 pm, Gelonida gelon...@gmail.com wrote: Hi, Normally I use following code snippet to quickly test a wsgi module without a web server. import wsgi_lib.server wsgi_lib.server.run(application, port=port) However Now I'd like to test a small wsgi module on a rather old host ( Python 2.4.3 ) where I don't have means to update python. Is there any quick and easy code snippet / module, performing the same task as my above mentioned lines? Thanks in advance for any hints You didn't mention why you can't update Python, or if that means you can't install new libraries either. However, if you have Twisted 8.2 or newer, you can replace your snippet with this shell command: twistd -n web --port port --wsgi application Thanks Jean-Paul The problem is rather simple. The host in question is not 100% under my control. I can request to have packages installed if they're in the list of available packages. python 2.4 is part of it. twisted is not In the worst case I could request the installation of python virtualenv, the entire gcc tool chain and try to compile twisted, or wsgilib, but I wondered whether there isn't a simple pure python way of starting a wsgi server for test purposes. You may be able to install Twisted (or even wsgilib) in your home directory. For example, the command: python setup.py --prefix ~/.local will install Twisted (or maybe wsgilib) in ~/.local/lib/python2.4/site- packages/. Add that to your PYTHONPATH (eg in your .bashrc) and you're basically all set. Also, though Twisted has some extension modules, they're optional. So you should be fine without a compiler, *except* that distutils doesn't cope so well with certain cases. If you find setup.py install fails for some reason, you can also just add the unpacked source directory to PYTHONPATH and run it in-place without installation. Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: DRY and static attribute for multiple classes.
Marc Aymerich wrote: Hi all, I want to provide an encapsulated static attribute called _registry for several classes. I try to use inheritance in order to make it DRY: all classes inherit from a BaseClass that implements the _registry encapsulation. But with inheritance it doesn't work how I want, because a single instance of the _registry is shared between all of the inherited classes, and I want to have an independent _registry for every class. How can I do that without coping all the code in every class? If you want to go fancy use a metaclass: class Base(object): ... class __metaclass__(type): ... def __init__(self, *args): ... type.__init__(self, *args) ... self.per_class = [] ... class A(Base): pass ... A().per_class is A().per_class True class B(Base): pass ... B().per_class is B().per_class True A().per_class is B().per_class False -- http://mail.python.org/mailman/listinfo/python-list
Re: simplest way to create simple standalone wsgi server without import wsgi_lib.server
On 02/01/2011 11:36 PM, Jean-Paul Calderone wrote: twistd -n web --port port --wsgi application The problem is rather simple. The host in question is not 100% under my control. I can request to have packages installed if they're in the list of available packages. python 2.4 is part of it. twisted is not You may be able to install Twisted (or even wsgilib) in your home directory. For example, the command: python setup.py --prefix ~/.local will install Twisted (or maybe wsgilib) in ~/.local/lib/python2.4/site- packages/. Add that to your PYTHONPATH (eg in your .bashrc) and you're basically all set. Also, though Twisted has some extension modules, they're optional. So you should be fine without a compiler, *except* that distutils doesn't cope so well with certain cases. If you find setup.py install fails for some reason, you can also just add the unpacked source directory to PYTHONPATH and run it in-place without installation. Thanks a lot you gave me some new ideas. I made first attempts with virtualenv and easy_install no module with C-code can be installed (some issue with tool chain) - wsgilib installation failed therefore - twisted installation failed therefore I untarred twisted and tried to run twistd. it complains about missing zope.interface installing of zope.interface fails also with gcc error. It seems I am currently stuck until I find a simplistic python only solution for quick standalone wsgi_module tests. -- http://mail.python.org/mailman/listinfo/python-list
PyQT: QWebView with custom QNetworkAccessManager
Hi, I would like to subclass QNetworkAccessManager and create a subclass of QWebView, that will use the subclassed QNetworkAccessManager for all accesses. Is this possible? I have really no idea when and how I could achieve this. Thanks in advance for any suggestions / pointers -- http://mail.python.org/mailman/listinfo/python-list
Re: How to create an entry in the Program menu of Windows?
On 02/01/2011 02:43 PM, Diesel wrote: I'd like to add menu entry in the Program Menu as part of the installation of an application. Is it possible to do that from Python? Any examples or link? I have not been able to find anything with google... Use an installer program like nsis to create an installer package from your python app. It can do all those kinds of things, and clean up after the program is uninstalled. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to create an entry in the Program menu of Windows?
On 01.02.2011 22:43, Diesel wrote: Hi, I'd like to add menu entry in the Program Menu as part of the installation of an application. Is it possible to do that from Python? Any examples or link? I have not been able to find anything with google... thanks in advance s/ AFAIK, the startmenu entries are just .lnk files, placed either in the All Users or Some Specific User Startmenu directory. I only have a German XP and can't boot it to test at the moment, so I can't give more details, but there are surely registry entries to find the Startmenu location for the current user or for All Users. See http://codesnippets.joyent.com/posts/show/529 for an example how to place .lnk files. However, for real deployment, you probably want to use a real installer framework like NSIS for example. HTH -- http://mail.python.org/mailman/listinfo/python-list
Print docstrings to shell
Can I run a script in bash and print out its docstrings to the bash shell? I tried this at the end: print(help(__file__)) Runnig the script: python ~/Sites/Sectrum/Harmonics.py but all it spit out was: no Python documentation found for '~/Sites/Sectrum/Harmonics.py' However in the interactive shell it prints out the class structure nicely. What I really want to see is this output in the bash window. -- Gnarlie -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On 02/01/2011 08:26 AM, Noah Hall wrote: On Tue, Feb 1, 2011 at 3:14 PM, rantingrick rantingr...@gmail.com wrote: #-- Embedded Trolls and Minions --# These people, including myself, aren't trolls nor minions. They just don't agree with you. I strongly disagree with rr and find him to be an egotistical troll who likes to hear the sound of his own, er, typing. Hence I'm disappointed that I'm not on his list. His posts really cause me to be conflicted. On the one hand they are fascinating in the train-wreck sense, on the other hand my replying to this perpetuates his ranting. Sigh. Consider yourself fed, rr. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to create an entry in the Program menu of Windows?
distutils can do this with a post-install script. See the distutils documentation. This is a script I wrote that did this (and other stuff): import sys import os if sys.argv[1] == '-install': # Append .py to scripts os.rename(os.path.join(sys.prefix, 'Scripts', 'anikom15'), os.path.join(sys.prefix, 'Scripts', 'anikom15.py')) file_created(os.path.join(sys.prefix, 'Scripts', 'anikom15.py')) # Create desktop and start menu shortcuts desktop = get_special_folder_path(CSIDL_COMMON_DESKTOPDIRECTORY) startmenu = get_special_folder_path(CSIDL_COMMON_STARTMENU) create_shortcut(os.path.join(sys.prefix, 'Scripts', 'anikom15.py'), Launch Anikom15's Computer Game, os.path.join(desktop, 'Anikom15.lnk'), '', '', os.path.join(sys.prefix, 'Icons', 'anikom15.ico')) file_created(os.path.join(desktop, 'Anikom15.lnk')) create_shortcut(os.path.join(sys.prefix, 'Scripts', 'anikom15.py'), Anikom15's Computer Game, os.path.join(startmenu, 'Anikom15.lnk'), '', '', os.path.join(sys.prefix, 'Icons', 'anikom15.ico')) file_created(os.path.join(startmenu, 'Anikom15.lnk')) elif sys.argv[1] == '-remove': pass On Tue, 2011-02-01 at 21:43 +, Diesel wrote: Hi, I'd like to add menu entry in the Program Menu as part of the installation of an application. Is it possible to do that from Python? Any examples or link? I have not been able to find anything with google... thanks in advance s/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Print docstrings to shell
On Tuesday, February 1, 2011 8:11:51 PM UTC-4, Gnarlodious wrote: Can I run a script in bash and print out its docstrings to the bash shell? I tried this at the end: print(help(__file__)) Runnig the script: python ~/Sites/Sectrum/Harmonics.py but all it spit out was: no Python documentation found for '~/Sites/Sectrum/Harmonics.py' However in the interactive shell it prints out the class structure nicely. What I really want to see is this output in the bash window. -- Gnarlie Try the following: test.py== import pydoc '''this is a test''' class A(object): '''docstring''' pass print(pydoc.help(__file__[:-3])) = python test.py André -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On 2011-02-01 10:54:26 -0500, Terry Reedy said: On 2/1/2011 12:13 AM, rantingrick wrote: On Jan 31, 4:17 pm, Kevin Walzerk...@codebykevin.com wrote: Rick, Yes. IDLE is first and foremost a tool to get work done. However we should not ignore the fact that IDLE could also be a great learning resource for Tkinter GUI's and other subjects. Why not clean up the code base? We could start small. First, move the custom widgets like textView, Tabbedpages, FindDialog, ReplaceDialog, and TreeWidget into the lib-tk for others to use more freely. Then we can modify the event robbers CallTips, ParenMatch, and ColorDelegator. Perhaps, after the repository moves from svn to hg, some 'we' will. Maybe by then, you will have had your fun and be ready to work. Maybe Kevin would help a bit. If he does not, I think I might. Is there a timeline for the move? Such a project would be carried out on the tracker and idle-sig mailing list. Normal decorum would be required -- no ranting or insulting. The first thing to do, in my opinion, is to review existing patches on the tracker. Well some changes and improvements can be made to the UI as well. There is patch on the tracker, by G. Polo, as I remember, to replace tk widgets with the newer themed ttk widgets. It needs to be reviewed and tested. To make a big change (or proceed with any refactoring) better automated testing would be very useful. +1 for the UI update +1 for more tests -- Robert -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On 02/01/2011 07:42 PM, Robert wrote: On 2011-02-01 10:54:26 -0500, Terry Reedy said: On 2/1/2011 12:13 AM, rantingrick wrote: On Jan 31, 4:17 pm, Kevin Walzerk...@codebykevin.com wrote: Rick, Yes. IDLE is first and foremost a tool to get work done. However we should not ignore the fact that IDLE could also be a great learning resource for Tkinter GUI's and other subjects. Why not clean up the code base? We could start small. First, move the custom widgets like textView, Tabbedpages, FindDialog, ReplaceDialog, and TreeWidget into the lib-tk for others to use more freely. Then we can modify the event robbers CallTips, ParenMatch, and ColorDelegator. Perhaps, after the repository moves from svn to hg, some 'we' will. Maybe by then, you will have had your fun and be ready to work. Maybe Kevin would help a bit. If he does not, I think I might. Is there a timeline for the move? I would help with such a project as well, given the opportunity. -- http://mail.python.org/mailman/listinfo/python-list
Re: Print docstrings to shell
On Feb 1, 5:30 pm, André Roberge andre.robe...@gmail.com wrote: test.py== import pydoc '''this is a test''' class A(object): '''docstring''' pass print(pydoc.help(__file__[:-3])) = python test.py OK that works, but only if I cd into the folder of the script. If I run it from ~ I get the same error. How to get around that prob? -- Gnarlie -- http://mail.python.org/mailman/listinfo/python-list
Re: Print docstrings to shell
On Tuesday, February 1, 2011 9:05:28 PM UTC-4, Gnarlodious wrote: On Feb 1, 5:30 pm, André Roberge andre@gmail.com wrote: test.py== import pydoc '''this is a test''' class A(object): '''docstring''' pass print(pydoc.help(__file__[:-3])) = python test.py OK that works, but only if I cd into the folder of the script. If I run it from ~ I get the same error. How to get around that prob? -- Gnarlie === import pydoc import os import sys '''this is a test''' class A(object): '''docstring''' pass _path, _file_name = os.path.split(__file__) _module_name = _file_name[:-3] sys.path.append(_path) pydoc.help(_module_name) = Note: I've included an underscore in variables names so that they would not appear. Note 2: for some reason, which I do not understand, it shows the help twice (i.e. I have to hit q twice to make it go away). Sorry that I can not help with this. André -- http://mail.python.org/mailman/listinfo/python-list
Re: PyQT: QWebView with custom QNetworkAccessManager
On 02/02/2011 12:31 AM, Gelonida wrote: Hi, I would like to subclass QNetworkAccessManager and create a subclass of QWebView, that will use the subclassed QNetworkAccessManager for all accesses. Is this possible? I have really no idea when and how I could achieve this. Thanks in advance for any suggestions / pointers Well I answer my own question. In fact my first experiments failed horribly due to a tiny PyQt detail. I expected that, the variable new_manager does not have to be persistent. I naively assumed, that a call to setNetworkAccessManager() would keep a reference to new_manager and thus avoid its destruction this does not seem to be the case. Below an example of how to create a QQWebview with a custom NetworkAccessManager import sys import PyQt4.QtGui as QtGui import PyQt4.QtCore as QtCore import PyQt4.QtWebKit as QtWebKit from PyQt4.QtNetwork import QNetworkAccessManager class MyNetworkAccessManager(QNetworkAccessManager): def __init__(self, old_manager): QNetworkAccessManager.__init__(self) self.setCache(old_manager.cache()) self.setCookieJar(old_manager.cookieJar()) self.setProxy(old_manager.proxy()) self.setProxyFactory(old_manager.proxyFactory()) def createRequest(self, operation, request, data): print mymanager handles , request.url() return QNetworkAccessManager.createRequest( self, operation, request, data) def set_new_manager(web): global new_manager # if this line is commented I will se old_manager = web.page().networkAccessManager() new_manager = MyNetworkAccessManager(old_manager) web.page().setNetworkAccessManager(new_manager) app = QtGui.QApplication(sys.argv) web = QtWebKit.QWebView() set_new_manager() web.setUrl( QtCore.QUrl(http://www.google.com;) ) web.show() sys.exit(app.exec_()) -- http://mail.python.org/mailman/listinfo/python-list
Re: Print docstrings to shell
On Tuesday, February 1, 2011 9:21:48 PM UTC-4, André Roberge wrote: SNIP === import pydoc import os import sys '''this is a test''' class A(object): '''docstring''' pass _path, _file_name = os.path.split(__file__) _module_name = _file_name[:-3] sys.path.append(_path) pydoc.help(_module_name) = Actually, one does not need to import pydoc; using help() without importing seems to work just as well (or as badly, as it displays it twice...) André Note: I've included an underscore in variables names so that they would not appear. Note 2: for some reason, which I do not understand, it shows the help twice (i.e. I have to hit q twice to make it go away). Sorry that I can not help with this. André -- http://mail.python.org/mailman/listinfo/python-list
Re: Reassign or discard Popen().stdout from a server process
On Tue, 1 Feb 2011, John O'Hagan wrote: So far my best bet seems to be closing stdin, which doesn't seem very clean, but it does what I want and seems to be just as fast as using stdin=open(os.devnull) in the Popen call in the first place. ...and both references to stdin above should have been to stdout (I really shouldn't post last thing at night). Thanks, John -- http://mail.python.org/mailman/listinfo/python-list
Re: Print docstrings to shell
On Feb 1, 4:11 pm, Gnarlodious gnarlodi...@gmail.com wrote: Can I run a script in bash and print out its docstrings to the bash shell? I tried this at the end: print(help(__file__)) Runnig the script: python ~/Sites/Sectrum/Harmonics.py but all it spit out was: no Python documentation found for '~/Sites/Sectrum/Harmonics.py' However in the interactive shell it prints out the class structure nicely. What I really want to see is this output in the bash window. The help() function prints the documentation itself itself (piping it to a pager if possible). It doesn't return the help text. If that's what you want, then probably the most foolproof way is: help(sys.modules[__name__]) This'll work whether it's a module or script. If you just want to print the documentation and bypass the pager, then I think something like this will do it: import pydoc print pydoc.render_doc(sys.modules[__name__]) Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
On Jan 31, 9:39 am, rantingrick rantingr...@gmail.com wrote: IDLE: cornucopia ... These are just the top of the list. The peak of a huge iceberg that threatens to sink the community in the arms of chaos never to return. That being said, I've taught a lot of people Python using IDLE. It's a surprisingly productive environment and has a near-zero learning curve. I am beginning to believe that this community is either made of amateurs due to this lackluster code in the stdlib. However it could be that the folks are really professional and refuse to work on such a horrible code base (which i understand). I am going with the latter. Patches are welcome :-) -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE: A cornicopia of mediocrity and obfuscation.
http://www.youtube.com/watch?v=z5jKMEB4hHE On Tue, 2011-02-01 at 10:23 -0800, rantingrick wrote: On Feb 1, 11:52 am, Red John redjohn...@gmail.com wrote: Go away. You are easily one of the worst (and definitely most annoying) person I've encountered in person or online, which is saying something because I used to frequent 4chan. Hmm, that coming from someone who has two posts in this group. And the last he posted was a year ago! Alright, let me add you to the proper category... py troll_group.append(Red John) -- http://mail.python.org/mailman/listinfo/python-list
Re: Print docstrings to shell
Thank you for the help, I learned a few things. The André solution renders the colors but needs q-q to quit. The Carl solution 1 prints colors and requires q to quit. The Carl solution 2 prints colorlessly, it looks good for exporting to a file. Everything I need. -- Gnarlie http://Gnarlodious.com -- http://mail.python.org/mailman/listinfo/python-list
Adding Asian text error with IIS
I created a very simple script, testing it out with web browser. # -*- coding: utf-8 -*- import sys sys.getdefaultencoding() f = '?' print Content-Type: text/plain;charset=utf-8 print f The moment I have an Asian text in my file (without doing anything to it at all) I always get a 502 error - web server received an invalid response. The script prints out just fine if I use python own IDLE however. The file was utf-8 encoded and setdefaultencoding is also utf-8. Testing out on windows server 2008 R2 IIS 7.5. Any help greatly appreciate! -- http://mail.python.org/mailman/listinfo/python-list
Perl Hacker, Python Initiate
All,
Given the following Perl script:
#!/usr/bin/perl
%dig = (
solaris = /usr/sbin/dig,
linux = /usr/bin/dig,
darwin = /usr/bin/dig
);
$DIG = $dig{$^O};
$DOMAIN = example.com;
$DNS = ns.example.com;
$DIGCMD = qq/$DIG \@$DNS $DOMAIN axfr/;
open DIG, $DIGCMD| or die $DIG: $!\n;
while (DIG) {
next if (/^;/); # Skip any comments
# If we match a CNAME record, we have an alias to something.
# $1 = alias (CNAME), $2 = canonical hostname
if (/^(\S+)\.${DOMAIN}\.\s+\d+\s+IN\s*CNAME\s+(\S+)\.${DOMAIN}\.$/) {
# Push an alias (CNAME) onto an array indexed on canonical hostname
push(@{$cnames{$2}}, $1);
}
# Here's a standard A (canonical hostname) record
# $1 = canonical hostname, $2 = IPv4 address
if (/^(\S+)\.${DOMAIN}\.\s+\d+\s+IN\s*A\s+(\S+)$/) {
$ip{$1} = $2;
}
}
close DIG;
# Format and display it like niscat hosts:
# canonicalHostname alias1 [alias2 aliasN] ipAddress
for $host (sort keys %ip) {
print $host ;
if (defined(@{$cnames{$host}})) {
print join(' ', @{$cnames{$host}});
print ;
}
print $ip{$host}\n;
}
exit 0;
Will someone please provide some insight on how to accomplish that task in
Python? I am unable to continually (i.e. it stops after displaying a single
line) loop through the output while testing for the matches on the two
regular expressions. Thank you.
-- Gary Chambers
--
http://mail.python.org/mailman/listinfo/python-list
Re: Perl Hacker, Python Initiate
On Tue, Feb 1, 2011 at 8:36 PM, Gary Chambers gwch...@gwcmail.com wrote: All, Given the following Perl script: snip Will someone please provide some insight on how to accomplish that task in Python? I am unable to continually (i.e. it stops after displaying a single line) loop through the output while testing for the matches on the two regular expressions. Thank you. What's your Python translation attempt look like? Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Perl Hacker, Python Initiate
Gary Chambers gwch...@gwcmail.com writes: Given the following Perl script: […] Will someone please provide some insight on how to accomplish that task in Python? I am unable to continually (i.e. it stops after displaying a single line) loop through the output while testing for the matches on the two regular expressions. Thank you. Insight will be easier to provide once we see your Python code. -- \ “In the long run, the utility of all non-Free software | `\ approaches zero. All non-Free software is a dead end.” —Mark | _o__)Pilgrim, 2006 | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
wxPython's Print Help
I can print whatever I want (definitely texts) by using following
Printer class. However, it prints only in Black and White mode
regardless original color of texts. Is there any way I can print color
texts?
=
#License: MIT
import wx
from wx import Printout, PrintData, PAPER_LETTER, PrintDialogData
from wx import Printer as wxPrinter, MessageBox, PrintPreview,
PrintDialog
def GetErrorText():
Put your error text logic here. See Python Cookbook for a useful
example of error text.
return Some error occurred.
class Printer(Printout):
def __init__(self, frame):
Prepares the Printing object. Note: change current_y for 1,
1.5, 2 spacing for lines.
Printout.__init__(self)
self.printer_config = PrintData()
self.printer_config.SetPaperId(PAPER_LETTER)
self.frame = frame
self.doc_text = ''
self.doc_name = ''
self.current_y = 50 #y should be either (15, 22, 30)
if self.current_y == 15:
self.num_lines_per_page = 50
elif self.current_y == 22:
self.num_lines_per_page = 35
else:
self.num_lines_per_page = 60
def Print(self, text, doc_name):
Prints the given text. Currently doc_name logic doesn't
exist. E.g. might be useful for a footer..
self.doc_text = text
self.doc_name = doc_name
pdd = PrintDialogData()
pdd.SetPrintData(self.printer_config)
printer = wxPrinter(pdd)
if not printer.Print(self.frame,self):
MessageBox(Unable to print the document.)
else:
self.printer_config =
PrintData(printer.GetPrintDialogData().GetPrintData())
def PreviewText(self, text, doc_name):
This function displays the preview window for the text with
the given header.
try:
self.doc_name = doc_name
self.doc_text = text
#Destructor fix by Peter Milliken --
print1 = Printer(self.frame, text = self.doc_text)
print2 = Printer(self.frame, text = self.doc_text)
preview = PrintPreview(print1, print2,
self.printer_config)
#preview = PrintPreview(self,self,self.printer_config)
if not preview.Ok():
MessageBox(Unable to display preview of document.)
return
preview_window = PreviewFrame(preview, self.frame, \
Print Preview - %s %
doc_name)
preview_window.Initialize()
preview_window.SetPosition(self.frame.GetPosition())
preview_window.SetSize(self.frame.GetSize())
preview_window.MakeModal(True)
preview_window.Show(True)
except:
MessageBox(GetErrorText())
def PageSetup(self):
This function handles displaying the Page Setup window and
retrieving the user selected options.
It's been updated to use the new style Windows, which allow
more options to be configured.
config_dialog = wxPageSetupDialog(self.frame)
config_dialog.GetPageSetupData()
config_dialog.ShowModal()
self.printer_config = config_dialog.GetPageSetupData()
config_dialog.Destroy()
def OnBeginDocument(self,start,end):
Do any end of document logic here.
self.base_OnBeginDocument(start,end)
def OnEndDocument(self):
Do any end of document logic here.
self.base_OnEndDocument()
def OnBeginPrinting(self):
Do printing initialization logic here.
self.base_OnBeginPrinting()
def OnEndPrinting(self):
Do any post printing logic here.
self.base_OnEndPrinting()
def OnPreparePrinting(self):
Do any logic to prepare for printing here.
self.base_OnPreparePrinting()
def HasPage(self, page_num):
This function is called to determine if the specified page
exists.
return len(self.GetPageText(page_num)) 0
def GetPageInfo(self):
This returns the page information: what is the page range
available, and what is the selected page range.
Currently the selected page range is always the available page
range. This logic should be changed if you need
greater flexibility.
minPage = 1
maxPage = int(len(self.doc_text.split('\n'))/
self.num_lines_per_page) + 1
fromPage, toPage = minPage, maxPage
return (minPage,maxPage,fromPage,toPage)
def OnPrintPage(self, page_num):
This function / event is executed for each page that needs to
be printed.
dc = self.GetDC()
x,y = 25, self.current_y
if not self.IsPreview():
y *=4
line_count = 1
for line in self.GetPageText(page_num):
dc.DrawText(line, x, y*line_count)
line_count += 1
return True
def GetPageText(self,
Classic asp registered with python in IIS 7
I had a website which used IIS 6 to call classic asp pages. The asp pages called python script and the python pages was doing all the operations. Now I am using IIS7 in windows7 and while running my websites I am getting HTTP/1.1 500 Server Error. I have done following steps but no luck. I have installed asp in IIS7 and I have registered asp with python by running pyscript.py (using python 2.7). Let me tell you that I wrote a simple classic asp code and it worked in IIS7.The asp code was - %response.write(Hello World)% I wrote a cgi with python and it worked with IIS7.The python script for cgi was - print Content-Type: text/plain;charset=utf-8 - print Hello World! But when I wrote another classic asp containing python code it didnt worked and I got same HTTP/1.1 500 Server Error. The code for asp with python was -%@Language=Python% -% -x=Hello -response.write(x) -% -- http://mail.python.org/mailman/listinfo/python-list
Help with python-twain module
Hello everyone, Really need help with the python-twain module. I installed the module for python 2.6 on a win-xp 32bit machine. I ran the demo app and got a python core crash when calling SourceManager.OpenSource(). I've managed to run the scanner I'm using on a Linux machine with python-imaging-sane module, but ran into problems when switching to windows. Any help will be greatly appreciated, Thanks, Sandy -- http://mail.python.org/mailman/listinfo/python-list
Re: Perl Hacker, Python Initiate
On Feb 1, 8:36 pm, Gary Chambers gwch...@gwcmail.com wrote:
open DIG, $DIGCMD| or die $DIG: $!\n;
while (DIG) {
Will someone please provide some insight on how to accomplish that task in
Python? I am unable to continually (i.e. it stops after displaying a single
line) loop through the output while testing for the matches on the two
regular expressions. Thank you.
You may have called read() instead of readlines().
Carl Banks
--
http://mail.python.org/mailman/listinfo/python-list
[issue11075] Turtle crash with IDLE on Mac OS X 10.6
Alex McNerney amcnerne...@yahoo.com added the comment: Sorry to keep bothering, but running Python 2.7.1:88286 (maintenance) on ActiveState Tcl/Tk 8.5.9 causes the idle to hang when a simple script like: x = raw_input(x: ) print x is run. Is this a bug in Tcl/Tk? Looking in the logs I see several instances of setCanCycle: is deprecated. Please use setCollectionBehavior instead Does this have any relevancy? Relating to this, I don't know if it is proper to ask here, but is it possible to link Python to a specific Tcl/Tk when compiling from the source? Note: When running Python 2.7.1 (32-bit from installer) with Tcl/Tk 8.4, the above problem is not there. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11075 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4735] An error occurred during the installation of assembly
Mads Darø Kristensen mad...@gmail.com added the comment: I have this problem using Python 2.7.1 on a 32-bit Windows 7 PC. -- nosy: +madsdk versions: +Python 2.7 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4735 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11084] Serialization of decimal.Decimal to XML-RPC
Changes by Mark Dickinson dicki...@gmail.com: -- nosy: +mark.dickinson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11084 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11085] expose _abcoll as collections.abc
Changes by Daniel Urban urban.dani...@gmail.com: -- nosy: +durban ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11085 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue8998] add crypto routines to stdlib
Changes by Nick Coghlan ncogh...@gmail.com: -- nosy: +ncoghlan ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue8998 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11075] Using Turtle with IDLE on Mac OS X
Ned Deily n...@acm.org added the comment: Now that I looked at the documentation (http://docs.python.org/library/turtle.html), I see that it is clear that Turtle is designed to work from IDLE *but*, as is noted, when using the module from within IDLE run with the -n switch, which means run IDLE without a subprocess. What may not be so obvious is how to do that on Mac OS X. Double-clicking on IDLE.app launches it with default values including a subprocess and there is no straightforward to override those. From a terminal shell, it is easy to start bin/idle: $ idle2.7 -n although that has a few cosmetic disadvantages with bin/idle over IDLE.app (for example, the application name displayed is Python not IDLE). It has aways been possible to launch an OS X GUI app from a shell command line using the open(1) command; as of OS X 10.6 it is now also possible to pass regular command line arguments to the application. So the following would work in 10.6 and probably be preferable: $ open -a /Applications/Python 2.7/IDLE.app --args -n If you want to have a double-clickable application, a simple approach is to create a launcher application with AppleScript: $ osacompile -o 'IDLE-n.app' EOF do shell script open -a '/Applications/Python 2.7/IDLE.app' --args -n EOF As someone not used to using Turtle and given the intended user base for Turtle, I wonder whether the current Turtle module documentation is sufficient on this point. Two possible actions I could see are: (1) expanding the documentation to include a suggestion like the above to allow for an OS X clickable app; and/or (2) actually supplying such a simple no-subprocess app with the standard python.org installer distribution (or some other solution). How is this issue handled on Windows? Is there a need to expand the documentation in general? (adding Raymond to the nosy list) -- nosy: +rhettinger title: Turtle crash with IDLE on Mac OS X 10.6 - Using Turtle with IDLE on Mac OS X versions: +Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11075 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7330] PyUnicode_FromFormat segfault
STINNER Victor victor.stin...@haypocalc.com added the comment: I opened other tickets related to PyUnicode_FromFormatV: * #10833 :Replace %.100s by %s in PyErr_Format(): the arbitrary limit of 500 bytes is outdated * #10831: PyUnicode_FromFormatV() doesn't support %li, %lli, %zi * #10830: PyUnicode_FromFormatV(%c) doesn't support non-BMP characters on narrow build * #10829: PyUnicode_FromFormatV() bugs with % and %% format strings (see also #10832: Add support of bytes objects in PyBytes_FromFormatV()) PyUnicode_FromFormatV() has now tests in test_unicode: issue_7330.diff should add new tests, at least to check that %20R doesn't crash. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7330 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11088] IDLE on OS X with Cocoa Tk 8.5 can hang waiting on input / raw_input
New submission from Ned Deily n...@acm.org: As reported by Alex McNerney in Issue11075 msg127687: ... running Python 2.7.1:88286 (maintenance) [built from source] on ActiveState Tcl/Tk 8.5.9 causes the idle to hang when a simple script like: x = raw_input(x: ) print x is run. Is this a bug in Tcl/Tk? Looking in the logs I see several instances of setCanCycle: is deprecated. Please use setCollectionBehavior instead Does this have any relevancy? I can reproduce the problem using input with Cocoa Tk 8.5 and Python 3.2rc2 or raw_input with Python 2.7.1+. It does not seem to happen with Carbon Tk 8.4. This may be related to Issue10940. Investigating further for impact on 3.2. -- assignee: ned.deily components: IDLE, Macintosh messages: 127691 nosy: amcnerney13, ned.deily priority: critical severity: normal status: open title: IDLE on OS X with Cocoa Tk 8.5 can hang waiting on input / raw_input type: behavior versions: Python 2.7, Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11088 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11075] Using Turtle with IDLE on Mac OS X
Ned Deily n...@acm.org added the comment: [Please don't add new topics to the same tracker issue. As David mentioned, it would be better to ask for help on one of the user lists to be sure before opening an issue. Besides the general python-list, there is an active OS X users list (pythonmac-sig) where you will find users of IDLE; see http://www.python.org/community/sigs/ That said, to address your most recent message, that appears to indeed be a problem. I've opened Issue11088 for it. The setCanCycle: is deprecated messages are a harmless artifact; they should disappear in an upcoming maintenance release of ActiveState Tcl 8.5.] -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11075 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11022] locale.setlocale() doesn't change I/O codec, os.environ does
Steffen Daode Nurpmeso sdao...@googlemail.com added the comment: Most of this is much too loud for a newbie who is about to read PEP 7 anyway. And if this community has chosen to try (?!?) not to break compatibility with code which does not have a notion of a locale setting (i.e. naively uses other code in that spirit), you know, then this is simply the way it is. Thus: you're right. I do agree with what you say, we here have a (8-bit) C++ library which does this in it's setup(): // Initialize those Locale variables we're responsible for Locale::_ctype_cclass = Locale::_posix_cclass; Locale::_ctype_ccase = Locale::_posix_ccase; (Like i said: we here went completely grazy and avoid system libraries whenever possible and at least directly, doing the stuff ourselfs and only with syscalls.) Besides that i would agree with me that unthreaded init, optional embeddor locale argument, cleanup of .getprefer...() and other drops of setlocale() are/would be good design decisions. And of course: keeping the thing simple and understandable is a thing to keep in mind in respect to a normal user. After the end (i have to excuse myself once again for a book): I, f.e., opened an issue 11059 on saturday because the HG repo was (2.7 may still be) not cloneable, and i did so at selenic, too. Notes on that: - pitrou closed it because this tracker is of course for Python bugs. (I asked him to decide - thanks.) - The selenic people told me that i added my trace to a completely wrong issue. (Just searched - that's more than shown in trace dump.) - I've found out that many, *many* issues seem to have been created due to this repo failure at python.org (at selenic), and i've added a note that they possibly should include a prominent notice that people should look for most recent call last before creating a new one. (I guess that most of these people are programmers - who else uses HG?) - Conclusion: maybe even os.environ[]= == locale.setlocale() is not simple minded enough. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11022 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11079] Make OS X entry in Applications like that in Windows
Ned Deily n...@acm.org added the comment: I agree that adding a link to the installed documentation set would be an improvement. Currently, the only easy way to find it is within IDLE: Help - Python Docs (or F1). I'll propose an installer patch for that for 3.2. -0.5 for removing the Extras directory. Prior to Python 3.2, it contained the contents of the Demo directory. For 3.2, the Demo directory was pruned and relocated to Tools, which had not previously been installed anywhere by OS X installers. Also, there has been at least one request to make some of the contents of Tools available on OS X, i.e. unittestgui. For those reasons, I added Tools under Extras for 3.2. I agree that much of the contents is not particularly useful from, say, IDLE. But the Python Launcher will run them under a command line and users can easily drag/drop any of onto a python command line in a terminal shell or just cd there and can also use the Finder's Get Info to change the application associated with them. That said, the launching of Python scripts in OS X is currently is currently somewhat fragile and unintuitive (in the presence of multiple Python versions) and in need of some work post-3.2; see, for instance, Issue5262. Due to OS X's multipl e personalities and interaction styles (Classic Mac, command line UNIX, X-based apps, etc), it's also difficult to assess exactly how the python.org installed Pythons are being used on OS X. My guess, though, is that a majority of our users these days primarily or exclusively use Python from a command line so it would be good to not neglect their needs. The issue of uninstalling has come up before, most recently (IIRC) in Issue7107. Unfortunately, the Mac/README file updated there is not installed. I would be +0.5 at looking into it further as time permits while recognizing that there would need to be caveats like potentially wiping out installed system-wide site-packages. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11079 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10227] Improve performance of MemoryView slicing
Stefan Behnel sco...@users.sourceforge.net added the comment: I've extracted and fixed the part of this patch that implements the slice object cache. In particular, PySlice_Fini() was incorrectly implemented. This patch applies cleanly for me against the latest py3k branch. -- Added file: http://bugs.python.org/file20639/slice-object-cache.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10227 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11075] Using Turtle with IDLE on Mac OS X
R. David Murray rdmur...@bitdance.com added the comment: Ned: I read the bits in the turtle docs about -n as meaning *if* you use -n *then* you should set this profile option (but if you don't, things should work). I didn't go over the docs in detail, though, so maybe I'm misreading. Since you and I clearly don't know what we are talking about in detail, I'm adding Gregor and Alexander (the latter since he's clearly been using it) to nosy. -- assignee: ned.deily - nosy: +belopolsky, gregorlingl ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11075 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
