BayPIGgies at OSCON: 7/23 8-9:30pm
NOTE: time change AND location change The July BayPIGgies meeting will be held at OSCON in the San Jose Convention Center as one of the BoF (Birds of a Feather) sessions from 8pm to 9:30pm Thursday July 23. Everyone is welcome: you do NOT need to be an OSCON member to attend a BoF. Wesley Chun will have a newbie-oriented What is Python? BoF from 7-8pm in the same room as BayPIGgies (we don't know which room yet). The July meeting is supposed to have a Django focus, but the program hasn't been settled yet, either. For more information, see http://baypiggies.net/ Discussion of details will take place on the BayPIGgies list: http://mail.python.org/mailman/listinfo/baypiggies -- Aahz (a...@pythoncraft.com) * http://www.pythoncraft.com/ as long as we like the same operating system, things are cool. --piranha -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
way for a function to understand whether it's being run through a OnCreate callback or not
is there a way for a function to understand whether it's being run through a OnCreate callback or not? I have working functions that I want to recycle through the OnCreate but need to catch the nuke.thisNode() bit inside them so they can still function when called manually through other scripts functions. -- http://mail.python.org/mailman/listinfo/python-list
Re: AP -- MeAmI.org Paces Google
Floetry scribe...@yahoo.com wrote in message news:803a7f06-8e43-4ff5-86a6-9fd9d2eee...@2g2000prl.googlegroups.com... On Jul 9, 8:33 pm, Bruce C. Baker b...@undisclosedlocation.net wrote: scribe...@yahoo.com wrote in message news:defacf35-6149-485a-8f03-15472d63d...@a39g2000pre.googlegroups.com... ka-snip Oh, puh-LEEZ, Martin! A two-year-old wouldn't be fooled by this! Any reason ka-snip? Binomial Theorem: page 3. http://MeAmI.org/pversusnp.pdf _ Well, *Martin*, since you think I'm dead, it could only have been my ka that did the snipping. Surely a polymath of your vast accomplishments will have no problem with the religio-historical reference, eh, *Martin*? (I'm predicting that not only will you *not* recognize it, you'll find it beneath your notice. No fair googling, *Martin*!) -- http://mail.python.org/mailman/listinfo/python-list
Re: way for a function to understand whether it's being run through a OnCreate callback or not
On Thu, Jul 9, 2009 at 11:18 PM, slamdunks.de...@gmail.com wrote: is there a way for a function to understand whether it's being run through a OnCreate callback or not? I have working functions that I want to recycle through the OnCreate but need to catch the nuke.thisNode() bit inside them so they can still function when called manually through other scripts functions. Your question lacks context. What's an OnCreate callback? Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: way for a function to understand whether it's being run through a OnCreate callback or not
slamdunk wrote: is there a way for a function to understand whether it's being run through a OnCreate callback or not? I have working functions that I want to recycle through the OnCreate but need to catch the nuke.thisNode() bit inside them so they can still function when called manually through other scripts functions. You've given us almost *NO* clue what you are talking about. I suppose I could Google onCreate, and perhaps nuke and thisNode, and see what falls out. But why would I? If you want our help, *you* take the time to tell is what you are asking about. You may want to start here: http://www.catb.org/~esr/faqs/smart-questions.html#intro Gary Herron -- http://mail.python.org/mailman/listinfo/python-list
Re: Examples of Python driven Microsoft UI Automation wanted
On Jul 9, 5:50 pm, Tim Roberts t...@probo.com wrote: The University of North Carolina at Chapel Hill has a great Python package called pyAA that does exactly this: http://www.cs.unc.edu/Research/assist/developer.shtmlhttp://mindtrove.info/articles/gui-automation-with-pyaa/ -- Tim Roberts, t...@probo.com Thanks Tim. From this page http://sourceforge.net/projects/uncassist/files/, there isn't a installer for Python2.5 or higher. Didn't find the source code there either. -- http://mail.python.org/mailman/listinfo/python-list
Re: AP -- MeAmI.org Paces Google
On Jul 9, 11:21 pm, Bruce C. Baker b...@undisclosedlocation.net wrote: Floetry scribe...@yahoo.com wrote in message news:803a7f06-8e43-4ff5-86a6-9fd9d2eee...@2g2000prl.googlegroups.com... On Jul 9, 8:33 pm, Bruce C. Baker b...@undisclosedlocation.net wrote: scribe...@yahoo.com wrote in message news:defacf35-6149-485a-8f03-15472d63d...@a39g2000pre.googlegroups.com... ka-snip Oh, puh-LEEZ, Martin! A two-year-old wouldn't be fooled by this! Any reason ka-snip? Binomial Theorem: page 3.http://MeAmI.org/pversusnp.pdf _ Well, *Martin*, since you think I'm dead, it could only have been my ka that did the snipping. Surely a polymath of your vast accomplishments will have no problem with the religio-historical reference, eh, *Martin*? (I'm predicting that not only will you *not* recognize it, you'll find it beneath your notice. No fair googling, *Martin*!) I did not Google. ka in ancient Egypt, the supposed spiritual part of an individual human being or god, which survived (with the soul) after death and could reside in a statue of the person. ELIZABETH KNOWLES. ka. The Oxford Dictionary of Phrase and Fable. Oxford University Press. 2006. Encyclopedia.com. 10 Jul. 2009 http:// www.encyclopedia.com. In a third class of religion—usually heavily interlaced with fetishism— magic, momentary and special deities, nature gods, and deities personifying natural functions (such as the Egyptian solar god Ra, the Babylonian goddess of fertility Ishtar, the Greek sea-god Poseidon, and the Hindu goddess of death and destruction *Ka*li) emerge and are incorporated into a system of mythology and ritual. Sometimes they take on distinctively human characteristics (see anthropomorphism). The axis of reason - equinox, mass, and time - the orbits of ...Et a basso profundo hashi-hashi-brek-a-time todo ka tiempo. Vozacka dozvola macarana lambada ... (⋯@⋮⋱⋮@⋯)) P. -- Musatov http://MeAmI.org ... -- http://mail.python.org/mailman/listinfo/python-list
Re: way for a function to understand whether it's being run through a OnCreate callback or not
On Fri, Jul 10, 2009 at 8:18 AM, slamdunks.de...@gmail.com wrote: is there a way for a function to understand whether it's being run through a OnCreate callback or not? I have working functions that I want to recycle through the OnCreate but need to catch the nuke.thisNode() bit inside them so they can still function when called manually through other scripts functions. I suppose you're programming for The Foundry's Nuke. Python is used in lots of different contexts, and most people on this list use Python for something totally unrelated to video. As an attempt at answering your question, you can add a parameter to your function that tells from where it's called. I.e. you put True in the parameter when it is called from OnCreate, False when it is not. But that isn't a very good design. A function should not need to care from where it is called. You probably want to have the node as a parameter to the function instead of calling nuke.thisNode inside of it. I can't find documentation for the OnCreate function online. Do you mean that you can only call nuke.thisNode() from inside OnCreate? Here's my guess of what I think you want to do: def OnCreate(): # call your function with the current node as argument your_function(nuke.thisNode()) def your_function(node): # The function takes a node as an argument. # Do whatever you want here For more Nuke-specific questions, you'd probably get better results by asking on the Nuke-python mailing list: http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-python -- mar...@librador.com http://www.librador.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for the right library for a simple HTTP client
On Fri, Jul 10, 2009 at 1:29 AM, scriptlear...@gmail.comscriptlear...@gmail.com wrote: I am trying to implement a simple client that can do the following: 1)to send the following kinds of HTTP requests and validate responses 1.1 GET 1.2 POST with application/x-www-form-urlencoded encoding 1.3 POST with multipart/form-data encoding 2)to set any number of (even duplicate) headers. For example, I may intentionally add the following Cookie: headers to a request: Cookie: id_1=v1;Domain=sample.com;Path=/ Cookie: id_1=v1;Domain=sample.com;Path=/ --same as the one above Cookie: id_2=v1;Domain=sample.com;Path=/ 3)to set proxy cfg so requests can go through a proxy server to reach the target server. 4)to send multiple requests simultaneously. I have Python 2.4.1 on Solaris 9 and 10, and I don't have any plan to upgrade to latest version of Python. I looked around and I found httplib and urllib. Are they sufficient for my tasks 1 to 3 above? Any good sample codes will be great. Thanks. -- http://mail.python.org/mailman/listinfo/python-list I like urllib2. The examples[1] are pretty good. [1] http://www.python.org/doc/2.4.1/lib/urllib2-examples.html -- David blog: http://www.traceback.org twitter: http://twitter.com/dstanek -- http://mail.python.org/mailman/listinfo/python-list
Httplib issues
Hi, i was trying to download file frm a terminal having apache with httplib manipulation. It worked, now i want to upload file to the terminal. Can this b done by httplib too? -- http://mail.python.org/mailman/listinfo/python-list
need to write a assembly progrm
my aim is to run the assembly programs in python.by that we can use that in the any labs.because we can run the python in the mobiles also.if we write assembly programs in the mobile ,the mobile act as a tool kit for the lab.tell me any other solutions for this -- http://mail.python.org/mailman/listinfo/python-list
Re: AP -- MeAmI.org Paces Google
On Jul 9, 6:18 pm, Bruce C. Baker b...@undisclosedlocation.net wrote: Musatov marty.musa...@gmail.com wrote in message news:fe9969b0-3c6a-49f7-8f38-0ed89dc9a...@x6g2000prc.googlegroups.com... [snip-a-rooney] violator. Google could not be reached for comment. Possibly because they were laughing so hard they couldn't hear their cell phones ringing ...? Thank you for your comment Bruce C. Baker. Are you aware you're dead? http://wcc.dli.mt.gov/B/BAKER_BRUCE_SJ_DECISION.htm http://MeAmI.org The Best Search Engine for Fat Dead Guys named Bruce -- http://mail.python.org/mailman/listinfo/python-list
Re: AP -- MeAmI.org Paces Google
Musatov marty.musa...@gmail.com wrote in message news:fe9969b0-3c6a-49f7-8f38-0ed89dc9a...@x6g2000prc.googlegroups.com... [snip-a-rooney] violator. Google could not be reached for comment. Possibly because they were laughing so hard they couldn't hear their cell phones ringing ...? -- http://mail.python.org/mailman/listinfo/python-list
Re: gett error message: TypeError: 'int' object is not callable
Friðrik Már Jónsson wrote: Hi Rhodri, It's only really a pitfall if you try to use the built-in after you've redefined it. That's the thing to keep an eye open for. You're right, but in cases where you're editing a codebase which you didn't author entirely by yourself you may not be aware of that. That said, if the codebase you're working on is structured (short, concise methods) you should be working with small, consumable scopes you can inhale in entirety before modifying. Regards, Friðrik Már But if you are responsible for a large codebase that you don't write yourself, it is doubtful that you're a real newbie. -- http://mail.python.org/mailman/listinfo/python-list
Re: gett error message: TypeError: 'int' object is not callable
Simon Forman wrote: On Thu, Jul 9, 2009 at 9:42 AM, Nicknleio...@gmail.com wrote: snip fields = line.split() for i in range(len(fields)): fields[i] = float(fields[i]) instead of the above code you could say: fields = [float(n) for n in in line.split()] Have fun getting back into python! :] (A lot has changed in the last few years) fields = [float(n) for n in in line.split()] File stdin, line 1 fields = [float(n) for n in in line.split()] ^ SyntaxError: invalid syntax s/in in/in/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Package for fast plotting of many data points in Python?
tt-industries wrote: Hi, I am programming a oscilloscope module in Python. For this reason, I want to plot very many data points as fast as possible. This can be more than 100 000 at once. So far I have been using the ploting module of wxPython. However, it becomes unstable for more than 25000 points. Can someone recommend me a faster plotting library? It would be really cool if one could embed this in wxPython. If someone has an idea I would be very glad about answer. Veusz can plot a line with that many points with that many points in a couple of seconds on my system. It's a bit faster without antialiasing, slower if you want to actually plot markers at each position. Jeremy -- Jeremy Sanders http://www.jeremysanders.net/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Httplib issues
jayesh bhardwaj schrieb: Hi, i was trying to download file frm a terminal having apache with httplib manipulation. It worked, now i want to upload file to the terminal. Can this b done by httplib too? Upload file to the terminal makes no sense to me. You can upload something to a server. You can run a terminal. You can run a ssh-session to a server in a terminal. You can't upload to a terminal. But you can use httplib (or better urllib2) to make http-post-requests to webservers. And last but not least the ubiquious http://catb.org/esr/faqs/smart-questions.html Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Clarity vs. code reuse/generality
Nobody wrote: On Thu, 09 Jul 2009 04:57:15 -0300, Gabriel Genellina wrote: Nobody says you shouldn't check your data. Only that assert is not the right way to do that. assert is not the right way to check your *inputs*. It's a perfectly reasonable way to check data which should be valid, as well as a way to document what variables are supposed to contain. Maybe, one of the assert problem is a semantic issue. Assert is a convenient way to write in the code This is a requirement, get lost if you don't fit in. However it seems we often forget that builtin asserts can be disabled. One possible solution for those who prefer to write assertions instead a 'if A then Exception' is to write their own assertion statement and **raise an exception** that will not be disabled at runtime. Jea-Michel -- http://mail.python.org/mailman/listinfo/python-list
Re: Colour of output text
Tim Harig user...@ilthio.net wrote:
On 2009-07-09, Alex Rosslyn black.line...@gmail.com wrote:
I would like to learn a way of changing the colour of a particular
part of the output text. I've tried the following
On Unix operating systems this would be done through the curses interface:
http://docs.python.org/library/curses.html
Or using ANSI colour codes:
colours = {
'none' :,
'default':\033[0m,
'bold' :\033[1m,
'underline' :\033[4m,
'blink' :\033[5m,
'reverse':\033[7m,
'concealed' :\033[8m,
'black' :\033[30m,
'red':\033[31m,
'green' :\033[32m,
'yellow' :\033[33m,
'blue' :\033[34m,
'magenta':\033[35m,
'cyan' :\033[36m,
'white' :\033[37m,
'on_black' :\033[40m,
'on_red' :\033[41m,
'on_green' :\033[42m,
'on_yellow' :\033[43m,
'on_blue':\033[44m,
'on_magenta' :\033[45m,
'on_cyan':\033[46m,
'on_white' :\033[47m,
'beep' :\007,
# non-standard attributes, supported by some terminals
'dark' :\033[2m,
'italic' :\033[3m,
'rapidblink' :\033[6m,
'strikethrough':\033[9m,
}
print colours['red'], 'this is red', colours['blue'], 'blue',
colours['on_green'], 'and with a green background', colours['default']
--
---
| Radovan Garabík http://kassiopeia.juls.savba.sk/~garabik/ |
| __..--^^^--..__garabik @ kassiopeia.juls.savba.sk |
---
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the ultimate logging facility for debugging code
Greetings,
Sorry for the dubious title :o). I was wandering if there is a standard
(or reliable) python module that implements the following feature:
http://code.activestate.com/recipes/198078/
Recipe 198078: Wrapping method calls (meta-class example)
A metaclass is used to wrap all (or just some) methods for logging
purposes. The underlying mechanism can be used as well to check pre/post
conditions, attribute access,... The basic point is, that the actual
class must not be changed in any way to achive the desired effect.
I had to adapt the code to some of my needs, but now it's almost
working, by simply defining a metaclass for any of my class, I get the
class methods calls logged with the instance that called the method, the
method name, the call line in the file, the parameter **value** passed
to the method and the returned value.
It just saved me from hours of ipython interactive debugging with the
old print way, and to beauty of it: I don't have to write any
self._log('Please log me') line.
As it is so useful, I bet there is a module that is doing this in a more
reliable way that I did. Anyone has heard of it ?
Jean-Michel
--
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help me to find the error
hi, i am a beginner in python language, i am trying with this programme : to find the addition and mean from a data set in a file and writing the mean and sum in some other file : *#! /usr/bin/env python import re import cPickle as p import math from numpy import * f0= open(temp9,r+).readlines() f2= open(out1,r+) add_1=[ ]; for i in range(0, len(f0)): f1=f0[i].split() add= float(f1[1])+float(f1[2]) mean= float(add)/2 print (f1[1]).ljust(6) ,(f1[2]).ljust(6),repr(add).ljust(7), repr(mean).ljust(7) add_1.append(add) add_1.append(mean) f2.write(%s % repr(add).ljust(7)),f2.write(%s % repr(mean).ljust(7)) print printing from file for i in range(0, len(add_1),2): print add_1[i],, add_1[i+1] f0.close() f2.close()* and this programme is givving me this error : *Traceback (most recent call last): File ./temporary1.py, line 24, in module f0.close() AttributeError: 'list' object has no attribute 'close'* please help to to find the error. or suggest some simpler or better way note: 1)file temp9 is already exist 2)this programme is giving me all my outputs, but at the end of the out ..its giving me that error. -- http://mail.python.org/mailman/listinfo/python-list
A zlib question
Hi! I have a problem with zlib and compressing/decompressing according to RFC 1951. It seems like I can decompress, something compressed according to RFC 1951 by someone else, provided I set wbits to something negative (used -8 but I guess any negative number would work?). But how can I compress using zlib so it doesn't add a gzip header ? -- Roland -- http://mail.python.org/mailman/listinfo/python-list
Re: help me to find the error
I'm new to Python myself, but I think it's because the method readlist() returns a list. Hence, f0 is typed 'list'. And lists can't be closed. If you leave it to: *f0= open(temp9,r+) *and then assign another variable to the readlist, such as: *lines = f0.readlines()* Then in the for loop, change f1 to *f1=lines[i].split()* That may just stop it from complaining. Untested, but logically it's sound. Hope that works, Ching-Yun Xavier Ho, Technical Artist Contact Information Mobile: (+61) 04 3335 4748 Skype ID: SpaXe85 Email: cont...@xavierho.com Website: http://xavierho.com/ On Fri, Jul 10, 2009 at 5:41 PM, jhinak sen jhinak@gmail.com wrote: hi, i am a beginner in python language, i am trying with this programme : to find the addition and mean from a data set in a file and writing the mean and sum in some other file : *#! /usr/bin/env python import re import cPickle as p import math from numpy import * f0= open(temp9,r+).readlines() f2= open(out1,r+) add_1=[ ]; for i in range(0, len(f0)): f1=f0[i].split() add= float(f1[1])+float(f1[2]) mean= float(add)/2 print (f1[1]).ljust(6) ,(f1[2]).ljust(6),repr(add).ljust(7), repr(mean).ljust(7) add_1.append(add) add_1.append(mean) f2.write(%s % repr(add).ljust(7)),f2.write(%s % repr(mean).ljust(7)) print printing from file for i in range(0, len(add_1),2): print add_1[i],, add_1[i+1] f0.close() f2.close()* and this programme is givving me this error : *Traceback (most recent call last): File ./temporary1.py, line 24, in module f0.close() AttributeError: 'list' object has no attribute 'close'* please help to to find the error. or suggest some simpler or better way note: 1)file temp9 is already exist 2)this programme is giving me all my outputs, but at the end of the out ..its giving me that error. -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Concatenating images (numpy arrays), but they look like HSV images
Robert Kern schrieb: Probably, you need to use zeros(..., dtype=uint8). When you use dtype=int, that will result in dtype=int arrays. I suspect that matplotlib is then interpreting that to mean that you want it to treat the input as scalar data (which it will pass through a colormap) rather than an RGB image. Thanks Robert, that was exactly the problem. Now I'am really wondering how one can know such details. Well, with your answer I searched again in the mathplotlib documentation and under the function imshow(X, ...) I indeed found the hint, that X has to be an uint8 or float array or PIL image, but before I hadn't known where to search. So again, thank you Sebastian -- http://mail.python.org/mailman/listinfo/python-list
Re: hoe to build a patched socketmodule.c
Roger Binns wrote: jacopo mondi wrote: Hi all, I need to patch socketmodule.c (the _socket module) in order to add support to an experimental socket family. You may find it considerably easier to use ctypes since that will avoid the need for any patching. You'll also be able to control how read and write are done (eg read vs recvfrom vs recvmsg vs readv). You can use os.fdopen to convert your raw file descriptor into a Python file object if appropriate. If you do use ctypes then you'll only need to distribute pure Python source code. Roger Thanks a lot, I'll give it a try.. cheers jacopo -- http://mail.python.org/mailman/listinfo/python-list
Re: property using a classmethod
Lie Ryan a écrit : Bruno Desthuilliers wrote: Lie Ryan a écrit : Emanuele D'Arrigo wrote: (snip) Ultimately all I want is a non-callable class-level attribute MyClass.myProperty that gives the result of MyClass.myClassMethod(). This works like what you seem to want (it's ugly): Ugly, indeed. And an extreme case of arbitrary overcomplexification too :-/ (snip rube goldberg code) Can't think of anything simpler than that without meddling with descriptor. Hmmm... Rereading the OP's spec, I guess you understood it better than I did - seems the OP wants to be able to call the property on the class object itself - which won't work with the builtin property type. So my own proposed solution won't do :-/ But still, meddling with descriptor is *way* simpler than your proposed solution. Here's a simple non-binding descriptor that do the job: class ClsProperty(object): def __init__(self, fget): if not isinstance(fget, (classmethod, staticmethod)): raise ValueError( fget must be a classmethod or staticmethod ) self.fget = fget def __get__(self, obj, cls=None): if cls is None: assert obj is not None cls = type(obj) return self.fget.__get__(obj, cls)() # example use class Foo(object): @classmethod def bar(cls): return %s.bar % cls.__name__ quux = ClsProperty(bar) I'm not even sure descriptor can help here as it seems descriptor needs an instance? wrt/ descriptors, no, they don't need an instance, at least for non-binding descriptors. Else, MyClass.MyMethod would return the MyClass.__dict__['MyMethod'] function, not an unbound method object !-) -- http://mail.python.org/mailman/listinfo/python-list
Re: Python-list Digest, Vol 70, Issue 142
hey Xavier thnx a lot :) its working and ya.. i got your pont regarding typecasting . jhinak On Fri, Jul 10, 2009 at 3:30 PM, python-list-requ...@python.org wrote: Send Python-list mailing list submissions to python-list@python.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.python.org/mailman/listinfo/python-list or, via email, send a message with subject or body 'help' to python-list-requ...@python.org You can reach the person managing the list at python-list-ow...@python.org When replying, please edit your Subject line so it is more specific than Re: Contents of Python-list digest... Today's Topics: 1. A zlib question (Roland Hedberg) 2. Re: help me to find the error (Xavier Ho) 3. Re: Concatenating images (numpy arrays), but they look like HSV images (Sebastian Schabe) -- Forwarded message -- From: Roland Hedberg rol...@catalogix.se To: python-list@python.org Date: Fri, 10 Jul 2009 11:33:25 +0200 Subject: A zlib question Hi! I have a problem with zlib and compressing/decompressing according to RFC 1951. It seems like I can decompress, something compressed according to RFC 1951 by someone else, provided I set wbits to something negative (used -8 but I guess any negative number would work?). But how can I compress using zlib so it doesn't add a gzip header ? -- Roland -- Forwarded message -- From: Xavier Ho cont...@xavierho.com To: python-list@python.org Date: Fri, 10 Jul 2009 17:53:15 +0800 Subject: Re: help me to find the error I'm new to Python myself, but I think it's because the method readlist() returns a list. Hence, f0 is typed 'list'. And lists can't be closed. If you leave it to: *f0= open(temp9,r+) *and then assign another variable to the readlist, such as: *lines = f0.readlines()* Then in the for loop, change f1 to *f1=lines[i].split()* That may just stop it from complaining. Untested, but logically it's sound. Hope that works, Ching-Yun Xavier Ho, Technical Artist Contact Information Mobile: (+61) 04 3335 4748 Skype ID: SpaXe85 Email: cont...@xavierho.com Website: http://xavierho.com/ On Fri, Jul 10, 2009 at 5:41 PM, jhinak sen jhinak@gmail.com wrote: hi, i am a beginner in python language, i am trying with this programme : to find the addition and mean from a data set in a file and writing the mean and sum in some other file : *#! /usr/bin/env python import re import cPickle as p import math from numpy import * f0= open(temp9,r+).readlines() f2= open(out1,r+) add_1=[ ]; for i in range(0, len(f0)): f1=f0[i].split() add= float(f1[1])+float(f1[2]) mean= float(add)/2 print (f1[1]).ljust(6) ,(f1[2]).ljust(6),repr(add).ljust(7), repr(mean).ljust(7) add_1.append(add) add_1.append(mean) f2.write(%s % repr(add).ljust(7)),f2.write(%s % repr(mean).ljust(7)) print printing from file for i in range(0, len(add_1),2): print add_1[i],, add_1[i+1] f0.close() f2.close()* and this programme is givving me this error : *Traceback (most recent call last): File ./temporary1.py, line 24, in module f0.close() AttributeError: 'list' object has no attribute 'close'* please help to to find the error. or suggest some simpler or better way note: 1)file temp9 is already exist 2)this programme is giving me all my outputs, but at the end of the out ..its giving me that error. -- http://mail.python.org/mailman/listinfo/python-list -- Forwarded message -- From: Sebastian Schabe sebastian.sch...@gmx.de To: python-list@python.org Date: Fri, 10 Jul 2009 12:01:51 +0200 Subject: Re: Concatenating images (numpy arrays), but they look like HSV images Robert Kern schrieb: Probably, you need to use zeros(..., dtype=uint8). When you use dtype=int, that will result in dtype=int arrays. I suspect that matplotlib is then interpreting that to mean that you want it to treat the input as scalar data (which it will pass through a colormap) rather than an RGB image. Thanks Robert, that was exactly the problem. Now I'am really wondering how one can know such details. Well, with your answer I searched again in the mathplotlib documentation and under the function imshow(X, ...) I indeed found the hint, that X has to be an uint8 or float array or PIL image, but before I hadn't known where to search. So again, thank you Sebastian -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: tough-to-explain Python
Steven D'Aprano st...@remove-this-cye.com.au wrote: On Wed, 08 Jul 2009 22:05:57 -0700, Simon Forman wrote: persistent idea out there that programming is a very accessible skill, like cooking or gardening, anyone can do it, and even profit from it, monetarily or otherwise, etc., and to some extent I am Programming is not like any other human activity. In practice? In principle? Programming in principle is not the same as it is performed in practice. But in either case, programming requires both the logical reasoning of mathematics and the creativity of the arts. Funnily enough, I do not buy this arty creativity stuff. - or are you talking about making a website look pretty? mathematicians will tell you that mathematics requires the same, and so will the best artists. I think mathematicians, engineers, artists, even great chefs, will pour scorn on your claim that programming is not like any other human activity. So a chef is now an authority on programming? Programming is actually kind of different - almost everything else is just done, at the time that you do it. Programming is creating stuff that is completely useless until it is fed into something that uses it, to do something else, in conjuction with the thing it is fed into, at a later time. This is a highly significant difference, IMHO. [...] He talks about how when all is said and done, the only thing computers can do for us is to manipulate symbols and produce results of such manipulations and he emphasises the uninterpreted nature of mechanical symbol manipulation, i.e. that the machine is doing it mindlessly. Manipulate symbols is so abstract as to be pointless. By that reasoning, I can build a computer consisting of a box open at the top. I represent a symbol by an object (say, a helium-filled balloon, or a stone), instead of a pattern of bits. I manipulate the symbol by holding the object over the box and letting go. If it flies up into the sky, that represents the symbol Love is War, if it falls into the box, it represents the symbol Strength is Blue, and if it just floats there, it represents Cheddar Cheese. This is a deterministic, analog computer which manipulates symbols. Great. And utterly, utterly useless. So what is my computer lacking that real computers have? When you have answered that question, you'll see why Dijkstra's claim is under-specified. So if computers do not manipulate symbols, what is it that they do? They sure cannot think, or drink, or reason, or almost any verb you can think of. Manipulating symbols is actually an elegant definition. Try coming up with a better one and you will see. And calling an abstraction pointless kind of contradicts what you say later... 8--- camel humps and other stuff --- - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
Re: subprocess + python-daemon - bug/problem?
Andy Clegg andy...@gmail.com writes: import daemon import subprocess daemon.DaemonContext(stderr = open(fakeConsole.txt,w+)).open() subprocess.Popen(['echo','1']).wait() However the error remains the same. The error appears in the file specified for the stderr output of the DaemonContext. Here it is without the unwanted extra line-wrapping that seems to plague all Google Mail users (seriously, folks: get a real mail provider that won't mangle your messages):: Traceback (most recent call last): File /home/bignose/Projects/python/python-daemon/bin/andy-clegg-test, line 7, in module subprocess.Popen(['echo', '1']).wait() File /usr/lib/python2.5/subprocess.py, line 1184, in wait pid, sts = self._waitpid_no_intr(self.pid, 0) File /usr/lib/python2.5/subprocess.py, line 1014, in _waitpid_no_intr return os.waitpid(pid, options) OSError: [Errno 10] No child processes I confirm that I'm getting the same error; Python 2.5.4. My first thought was perhaps it's related to the fact that the process has no stdout? But setting ‘stdout’ and ‘stderr’ to the same file:: #! /usr/bin/python import daemon import subprocess fake_console = open(fake_console.txt, w+) daemon.DaemonContext(stdout=fake_console, stderr=fake_console).open() subprocess.Popen(['echo', '1']).wait() still gives the same error:: 1 Traceback (most recent call last): File /home/bignose/Projects/python/python-daemon/bin/andy-clegg-test, line 8, in module subprocess.Popen(['echo', '1']).wait() File /usr/lib/python2.5/subprocess.py, line 1184, in wait pid, sts = self._waitpid_no_intr(self.pid, 0) File /usr/lib/python2.5/subprocess.py, line 1014, in _waitpid_no_intr return os.waitpid(pid, options) OSError: [Errno 10] No child processes I'm not familiar enough with the nuances of the ‘subprocess’ module to know what might be going wrong here. I'd like to know whether it might be a problem in the ‘python-daemon’ library. -- \ “Whatever a man prays for, he prays for a miracle. Every prayer | `\ reduces itself to this: “Great God, grant that twice two be not | _o__) four.”” —Ivan Turgenev | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: property using a classmethod
Bruno Desthuilliers a écrit : (snip) You could write your own custom descriptor. Or just use an additional level of indirection, ie: myProperty = property(lambda self: self.myClassMethod()) Sorry, looks like I didn't read carefully enough. The above code won't work if you intend to lookup the property directly on the class object, ie MyClass.myProperty. If that was your intention, you'll need a custom descriptor. The following code should do the job, or at least get you started: # python 2.5.x # the custom (non binding) descriptor class ClsProperty(object): def __init__(self, fget): if not isinstance(fget, (classmethod, staticmethod)): # XXX better error message raise ValueError( fget must be a classmethod or staticmethod ) self.fget = fget def __get__(self, obj, cls=None): if cls is None: assert obj is not None cls = type(obj) return self.fget.__get__(obj, cls)() # helper - a simple decorator def classproperty(func): if not isinstance(func, (classmethod, staticmethod)): func = classmethod(func) return ClsProperty(func) # example use class Foo(object): # the hard way @classmethod def bar(cls): return %s.bar % cls.__name__ quux = ClsProperty(bar) # the simple way @classproperty def baaz(cls): return %s.baaz % cls Given your example, this should be enough. If you need a binding descriptor (one with a setter), you'll have to implement the __set__ method (and possibly __del__). Google for python descriptor to find more doc about the descriptor protocol. HTH -- http://mail.python.org/mailman/listinfo/python-list
Re: can i write a assemly language programs in python
Terry Reedy wrote: div class=moz-text-flowed style=font-family: -moz-fixedDave Angel wrote: m.reddy prasad reddy wrote: can any one tell me how to write assembly language programs in python...if no is there any other way to write the programs in python Reddi prasad reddy ph.no:09958083797 Assembly language is a different programming language than Python. You can use both in the same process, much in the same way you can use C or C++ with Python. In fact, some of the system DLL's are written (partly) in assembler, though mostly in C or C++. It is possible that he meant how to write assembly *with* python. Or how to translate python to assembly. As it turns out, CPython translates Python to byte code and has a dis (assembly) module that produces very nice assembly code ;-) So that is one answer to his question. You'll need to tell us what your real goal is. Definitely. tjr /div If you mean dis.dis() that only gives you byte code. I assumed he was referring to native code assembly. I guess I'd better stop guessing grin. DaveA -- http://mail.python.org/mailman/listinfo/python-list
Query regarding set([])?
Hi, I'm contsructing a simple compare-script and thought I would use set ([]) to generate the difference output. But I'm obviosly doing something wrong. file1 contains 410 rows. file2 contains 386 rows. I want to know what rows are in file1 but not in file2. This is my script: s1 = set(open(file1)) s2 = set(open(file2)) s3 = set([]) s1temp = set([]) s2temp = set([]) s1temp = set(i.strip() for i in s1) s2temp = set(i.strip() for i in s2) s3 = s1temp-s2temp print len(s3) Output is 119. AFAIK 410-386=24. What am I doing wrong here? BR, Andy -- http://mail.python.org/mailman/listinfo/python-list
Re: Query regarding set([])?
vox wrote: I'm contsructing a simple compare-script and thought I would use set ([]) to generate the difference output. But I'm obviosly doing something wrong. file1 contains 410 rows. file2 contains 386 rows. I want to know what rows are in file1 but not in file2. This is my script: s1 = set(open(file1)) s2 = set(open(file2)) Remove the following three lines: s3 = set([]) s1temp = set([]) s2temp = set([]) s1temp = set(i.strip() for i in s1) s2temp = set(i.strip() for i in s2) s3 = s1temp-s2temp print len(s3) Output is 119. AFAIK 410-386=24. What am I doing wrong here? You are probably misinterpreting len(s3). s3 contains lines occuring in file1 but not in file2. Duplicate lines are only counted once, and the order doesn't matter. So there are 119 lines that occur at least once in file2, but not in file1. If that is not what you want you have to tell us what exactly you are looking for. Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: psyco V2 beta2 benchmark
On 10 Jul, 04:54, Zac Burns zac...@gmail.com wrote: Where do you get this beta? I heard that Psyco V2 is coming out but can't find anything on their site to support this. I found the Subversion repository from the Psyco site: http://psyco.sourceforge.net/ - http://codespeak.net/svn/psyco/dist/ - http://codespeak.net/svn/psyco/v2/ It's not widely advertised, but I imagine that this is the correct repository. Navigating around on the codespeak.net site took me to the ViewVC instance which gives some date/time information that would confirm my suspicions: https://codespeak.net/viewvc/psyco/ A log of the development can be viewed here: https://codespeak.net/viewvc/psyco/v2/dist/?view=log Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: help me to find the error
On Fri, 10 Jul 2009 10:41:03 +0100, jhinak sen jhinak@gmail.com wrote: hi, i am a beginner in python language, i am trying with this programme : to find the addition and mean from a data set in a file and writing the mean and sum in some other file : *#! /usr/bin/env python import re import cPickle as p import math from numpy import * f0= open(temp9,r+).readlines() f2= open(out1,r+) add_1=[ ]; for i in range(0, len(f0)): f1=f0[i].split() add= float(f1[1])+float(f1[2]) mean= float(add)/2 print (f1[1]).ljust(6) ,(f1[2]).ljust(6),repr(add).ljust(7), repr(mean).ljust(7) add_1.append(add) add_1.append(mean) f2.write(%s % repr(add).ljust(7)),f2.write(%s % repr(mean).ljust(7)) print printing from file for i in range(0, len(add_1),2): print add_1[i],, add_1[i+1] f0.close() f2.close()* and this programme is givving me this error : *Traceback (most recent call last): File ./temporary1.py, line 24, in module f0.close() AttributeError: 'list' object has no attribute 'close'* As the error message tells you, 'f0' is a list. readlines() returns a list of the lines in the file object, rather than the file object itself. Since you promptly (and entirely reasonably) discard the file object, you haven't got any way to close() it. You don't actually need to do that, though. You can use a file object as something you use a 'for' loop over, and be given one line at a time. So instead you can write your code like this: snippet f0 = open(temp9, r) for line in f0: f1 = line.split() # ... and so on /snippet Notice that I only opened the file as r -- you are only reading it, not updating it, and giving yourself more permission than you need is a bad habit to get into. Opening the file this way means that if you accidentally write f0.write(something) instead of f2.write(something), Python will stop you with an exception rather than silently trash your data. -- Rhodri James *-* Wildebeest Herder to the Masses -- http://mail.python.org/mailman/listinfo/python-list
Re: need to write a assembly progrm
On Thu, 09 Jul 2009 11:52:44 +0100, m.reddy prasad reddy reddy@gmail.com wrote: my aim is to run the assembly programs in python.by that we can use that in the any labs.because we can run the python in the mobiles also.if we write assembly programs in the mobile ,the mobile act as a tool kit for the lab.tell me any other solutions for this Please define what you mean by assembly. -- Rhodri James *-* Wildebeest Herder to the Masses -- http://mail.python.org/mailman/listinfo/python-list
Re: language analysis to enforce code standards
Steven D'Aprano wrote:
On Fri, 10 Jul 2009 02:06:35 +, Jason S. Friedman wrote:
Hello, I administer the Informatica ETL tool at my company. Part of
that role involves creating and enforcing standards. I want the
Informatica developers to add comments to certain key objects and I want
to be able to verify (in an automated fashion) that they have done so.
I cannot merely check for non-emptiness; that is trivial to circumvent.
On the other hand, I probably do not need to be able to catch
developers who are determined to not create comments. There are not too
many of them and perhaps they will find it is easier to write a (useful)
comment than to game the system.
Any thoughts on how I might proceed? Stated plainly, how can I tell
when a string more-or-less forms at least one phrase?
Define phrase.
if len(s) 0:
print at least one character
if len(s.split()) 0:
print at least one word
if len(s.split('\n') 0:
print at least one line
You could also verify there are at least N different characters used in
the sentence:
N = 5 # must contains at least 5 different characters
record = []
for c in s:
if c not in record:
record += [c]
if len(record) = N:
print at least %s different characters % N
Jean-Michel
--
http://mail.python.org/mailman/listinfo/python-list
Re: Examples of Python driven Microsoft UI Automation wanted
Hi, I am the author of pywinauto (http://pywinauto.openqa.org/). It doesn't have specific functionality built in for winforms - but many winforms controls are built on top of win32 functionality and pywinauto can work with them for that. On Jul 9, 4:41 pm, Paul McGuire pt...@austin.rr.com wrote: On Jul 9, 1:50 pm, DuaneKaufman duane.kauf...@gmail.com wrote: I have used pywinauto to drive a Flash game running inside of an Internet Explorer browser - that's pretty GUI! Wow - cool :) -- Paul Hi, Could you share some code examples? You might have a look at http://pywinauto.pbworks.com/ (the site is no longer used - but there is a cool movie giving an example of using pywinauto at the interactive prompt) Other examples (Notepad, mspaint) are included with the install. PyPi - http://pypi.python.org/pypi/pywinauto/0.3.8 Thanks, Duane (duanek (at) chorus (dot) net) Good luck! :) Mark I just went on a brief fishing expedition through two disk backups, and no luck. I guess it's been a while since I worked on this. The work I did was entirely graphical, which is to say, my script interacted with the Flash program by using PIL to take image snapshots of the window, and then sifting through the bitmap looking for the status of a time remaining thermometer-style gauge in the game. Then the script could click on X-Y coordinates within the window, which would get picked up by the Flash game, and the script would monitor the time remaining gauge some more, and so on. I'm not sure how well pywinauto would work in allowing you to access controls such as textboxes within a form. I remember that I had to access the IE window using a caption name, and then found the embedded Flash program as an embedded control of some sort, again, I probably needed to indicate that it was some sort of Adobe.FlashWidget1 object or something. I may have another, older disk backup at home, I can look for it later this evening. -- Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: can i write a assemly language programs in python
m.reddy prasad reddy wrote: can any one tell me how to write assembly language programs in python...if no is there any other way to write the programs in python Bah, writing assembly language is easy in Python: print(MOV EAX, [EBX]) print(XOR EBX, EBX) Just adjust the strings for your favorite processor architecture and Python will produce the assembly code you want. Now compiling assembly to *machine* code...or calling between Python and assembly...that's another matter. But writing assembly language programs in Python? Easy. ;-) -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: language analysis to enforce code standards
Jason S. Friedman wrote: Hello, I administer the Informatica ETL tool at my company. Part of that role involves creating and enforcing standards. I want the Informatica developers to add comments to certain key objects and I want to be able to verify (in an automated fashion) that they have done so. I cannot merely check for non-emptiness; that is trivial to circumvent. On the other hand, I probably do not need to be able to catch developers who are determined to not create comments. There are not too many of them and perhaps they will find it is easier to write a (useful) comment than to game the system. Any thoughts on how I might proceed? Stated plainly, how can I tell when a string more-or-less forms at least one phrase? Don't be a fool. Have someone other than the author read the comment. Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: Query regarding set([])?
On Jul 10, 2:04 pm, Peter Otten __pete...@web.de wrote: You are probably misinterpreting len(s3). s3 contains lines occuring in file1 but not in file2. Duplicate lines are only counted once, and the order doesn't matter. So there are 119 lines that occur at least once in file2, but not in file1. If that is not what you want you have to tell us what exactly you are looking for. Peter Hi, Thanks for the answer. I am looking for a script that compares file1 and file2, for each line in file1, check if line is present in file2. If the line from file1 is not present in file2, print that line/write it to file3, because I have to know what lines to add to file2. BR, Andy -- http://mail.python.org/mailman/listinfo/python-list
Re: Query regarding set([])?
On Fri, Jul 10, 2009 at 8:52 AM, voxvox2...@gmail.com wrote: I am looking for a script that compares file1 and file2, for each line in file1, check if line is present in file2. If the line from file1 is not present in file2, print that line/write it to file3, because I have to know what lines to add to file2. Just copy file1 to file2. (I'm pretty sure that's not what you want, but in explaining why it should become clearer what you're trying to do.) -- http://mail.python.org/mailman/listinfo/python-list
Re: hoe to build a patched socketmodule.c
Roger Binns wrote: jacopo mondi wrote: Hi all, I need to patch socketmodule.c (the _socket module) in order to add support to an experimental socket family. You may find it considerably easier to use ctypes since that will avoid the need for any patching. You'll also be able to control how read and write are done (eg read vs recvfrom vs recvmsg vs readv). You can use os.fdopen to convert your raw file descriptor into a Python file object if appropriate. If you do use ctypes then you'll only need to distribute pure Python source code. Roger Wait a minute, am I confused or ctypes seems to be unusless for my needs? Ctypes wraps a system shared object (as libc is) and gives you the possibility to access its functions. What have I to wrap? the fuctionalities I need to use are those exposed by the kernel via sys/socket.h haeder (socket, bind, connect etc.). Maybe I could wrapp _socket.so (I think it's possible) but seems to be unuseless because I need to modify, for example, the parameters that _socket.so passes to the socket() function in order to create a socket owned by the new socket family I'm actualy experimenting. Hope it's clear what I'm trying to explain... Thanks anyway, but ctypes doen't seem to fit my needs.. cheers jacopo -- http://mail.python.org/mailman/listinfo/python-list
Re: tough-to-explain Python
On Fri, 10 Jul 2009 12:54:21 +0200, Hendrik van Rooyen wrote: Steven D'Aprano st...@remove-this-cye.com.au wrote: On Wed, 08 Jul 2009 22:05:57 -0700, Simon Forman wrote: persistent idea out there that programming is a very accessible skill, like cooking or gardening, anyone can do it, and even profit from it, monetarily or otherwise, etc., and to some extent I am Programming is not like any other human activity. In practice? In principle? Programming in principle is not the same as it is performed in practice. But in either case, programming requires both the logical reasoning of mathematics and the creativity of the arts. Funnily enough, I do not buy this arty creativity stuff. - or are you talking about making a website look pretty? I must admit, it never crossed my mind that anyone here would claim that there was no creativity involved in programming, that it was all a mindless, algorithmic process capable of being done by a simple mechanical device. This is certainly the accusation made against *bad* programmers -- that they can't actually solve new, unique problems, but just apply recipes they learned without any insight or intelligence. The sort of people who program so poorly that a trained monkey could do what they do. Do you really think that applies to good programmers too? If so, then a good code generator should be able to replace any programmer. Is that what you believe? mathematicians will tell you that mathematics requires the same, and so will the best artists. I think mathematicians, engineers, artists, even great chefs, will pour scorn on your claim that programming is not like any other human activity. So a chef is now an authority on programming? Did I say that? Chefs are authorities on OTHER HUMAN ACTIVITIES. Programming is actually kind of different - almost everything else is just done, at the time that you do it. Programming is creating stuff that is completely useless until it is fed into something that uses it, to do something else, in conjuction with the thing it is fed into, at a later time. Somebody should teach Hendrik that human beings have been creating TOOLS for hundreds of thousands of years. People have been creating tools to build tools for thousands of years. Software is just more of the same. Even *soup stock* fits the same profile as what Hendrik claims is almost unique to programming. On its own, soup stock is totally useless. But you make it, now, so you can you feed it into something else later on. Or instant coffee. No, Henrik, if that's the best you can do, it's not very good. It is rather sad, but also hilarious, that the most different thing you have noticed about software is that it's just like instant coffee. This is a highly significant difference, IMHO. [...] He talks about how when all is said and done, the only thing computers can do for us is to manipulate symbols and produce results of such manipulations and he emphasises the uninterpreted nature of mechanical symbol manipulation, i.e. that the machine is doing it mindlessly. Manipulate symbols is so abstract as to be pointless. By that reasoning, I can build a computer consisting of a box open at the top. I represent a symbol by an object (say, a helium-filled balloon, or a stone), instead of a pattern of bits. I manipulate the symbol by holding the object over the box and letting go. If it flies up into the sky, that represents the symbol Love is War, if it falls into the box, it represents the symbol Strength is Blue, and if it just floats there, it represents Cheddar Cheese. This is a deterministic, analog computer which manipulates symbols. Great. And utterly, utterly useless. So what is my computer lacking that real computers have? When you have answered that question, you'll see why Dijkstra's claim is under-specified. So if computers do not manipulate symbols, what is it that they do? Did I say they don't manipulate symbols? They sure cannot think, or drink, or reason, They can't reason? Then what are they doing when they manipulate symbols? Yet again, it didn't even cross my mind that somebody would make this claim. My entire point is that it's not enough to just manipulate symbols, you have to manipulate symbols the correct way, following laws of logic, so that the computer can *mindlessly* reason. or almost any verb you can think of. If you're going to take that argument, then I'll remind you that there are no symbols inside a computer. There are only bits. And in fact, there aren't even any bits -- there are only analog voltages, and analog magnetic fields. Manipulating symbols is actually an elegant definition. Try coming up with a better one and you will see. As I said above, it's not enough to just manipulate symbols. Here's a set of rules to manipulate symbols: X = 0 or in English, Any symbol becomes the zero symbol. That's symbol manipulation. Utterly useless. This is why it's not
Re: AP -- MeAmI.org Paces Google
Musatov wrote: Los Angeles (AP) --MeAmI.org now has users in 50 countries following its adopted use in Pakistan. The search engine has grown in popularity 10,000 fold following its Beta test launch three months ago in April, 2009. Supporters of the site claim it is better than rival Google upon which platform it is based. Controversy arose after MeAmI.org search code allowed users to search other users Google results with no advertising. It is truly an innovative thing we are doing, said Founder and CEO, Martin Musatov. Letting users search the results of other Google users immediately results in a level of accuracy and relevance above and beyond Google. Google changed their API following the launch or MeAmI.org and explored the possibility of blocking site access from MeAmI.org to Google search results but was unable to do so. Critics of MeAmI.org say what it is doing is tantamount to intellectual theft. When asked about this topper Musatov exclaimed, The Internet was made for people, not companies. An analyst at Goldman Sachs says, requesting to remain anonymous, MeAmI.org has a strong presence in promoting itself as a vehicle for global activism and to tell you the truth, this makes it much more likely an acquisition target than potential intellectual property violator. Google could not be reached for comment. Mr. Musatov, is it you who removed the post quoted above from the Google Groups archive? Thank you. David Bernier -- http://mail.python.org/mailman/listinfo/python-list
Re: The meaning of = (Was: tough-to-explain Python)
[excessive quoting ahead, I'm too tired to trim] In article h32i2o$eo...@reader1.panix.com, kj no.em...@please.post wrote: In h32fon$26...@panix3.panix.com a...@pythoncraft.com (Aahz) writes: In article h32eoh$ql...@reader1.panix.com, kj no.em...@please.post wrote: OK, so, scratching from my original post the case identifier.identifier = expression (as being a special case of identifier = expression), still, to the extent that I understand your post, the = in x = 1 means something fundamentally different (in terms of Python's underlying implementation) from the = in y[0] = 1 No? No. ;-) No??? Just when I thought I finally understood all this! What's different is not the ``=`` but the construction of the assignment target before ``=`` gets executed. Hmm. OK, I went to the link you posted in your other message (http://docs.python.org/reference/simple_stmts.html#assignment-statements) and I find this (my emphasis): Assignment of an object to a single target is recursively defined as follows. * If the target is an identifier (name): o If the name does not occur in a global statement in the current code block: the name is bound to the object ^ in the current local namespace. o Otherwise: the name is bound to the object in the ^ current global namespace. The name is rebound if it was already bound. This may cause the reference count for the object previously bound to the name to reach zero, causing the object to be deallocated and its destructor (if it has one) to be called. * If the target is a target list enclosed in parentheses or in square brackets... (I'LL IGNORE THIS FOR NOW) * If the target is an attribute reference: The primary expression in the reference is evaluated. It should yield an object with assignable attributes; if this is not the case, TypeError is raised. That object is then asked to assign the assigned object to the given attribute; if it cannot perform the ^^ assignment, it raises an exception (usually but not necessarily AttributeError). * If the target is a subscription: The primary expression in the reference is evaluated. It should yield either a mutable sequence object (such as a list) or a mapping object (such as a dictionary). Next, the subscript expression is evaluated. If the primary is a mutable sequence object (such as a list),... [CONDITIONS ON THE INDEX EXPRESSION OMITTED]... the sequence is asked to assign the assigned object to its ^^^ item with that index If the primary is a mapping object (such as a dictionary),... [CONDITIONS ON THE SUBSCRIPT EXPRESSION OMITTED]... the ^^^ mapping is then asked to create a key/datum pair which maps ^^^ the subscript to the assigned object. * If the target is a slicing: [INDEX STUFF OMITTED]... the ^^^ sequence object is asked to replace the slice with the items of the assigned sequence... OK, I originally interpreted what Lundh wrote in his two articles that the binding described at the very beginning (i.e. when the target is an identifier), which I take to make an entry or modify such an entry in a namespace, is a *categorically different* operation from the remaining operations underlined above. I interpreted Paul Boddie's correction in his response to me as saying that the assignment mentioned for the case when the target is an attribute reference is actually a special case of the assignment to simple identifiers (i.e. it also means binding). But that still leaves all the other assignments (or the like) underlined above. I don't think that the full definitions of these remaining cases are covered by the same rule, even though the rule is described as recursive. I think that the writer has something else in mind, and in particular, something *other* than binding, but the author remains vague on exactly what this means. Clearly, both Lundh and the documentation draw some distinction between binding and some other forms of assignment (which remain ill-defined throughout). This distinction is what I was referring to when I said that = means different things in different contexts. Consider this: x = 1 globals()['x'] = 1 locals()[1] = 1 What's the difference between the three? Although there's a lot of machinery amenable to manipulation, with the
Re: help me to find the error
jhinak sen wrote: hi, i am a beginner in python language, i am trying with this programme : to find the addition and mean from a data set in a file and writing the mean and sum in some other file : *#! /usr/bin/env python import re import cPickle as p import math from numpy import * f0= open(temp9,r+).readlines() f2= open(out1,r+) add_1=[ ]; for i in range(0, len(f0)): f1=f0[i].split() add= float(f1[1])+float(f1[2]) mean= float(add)/2 print (f1[1]).ljust(6) ,(f1[2]).ljust(6),repr(add).ljust(7), repr(mean).ljust(7) add_1.append(add) add_1.append(mean) f2.write(%s % repr(add).ljust(7)),f2.write(%s % repr(mean).ljust(7)) print printing from file for i in range(0, len(add_1),2): print add_1[i],, add_1[i+1] f0.close() f2.close()* and this programme is givving me this error : *Traceback (most recent call last): File ./temporary1.py, line 24, in module f0.close() AttributeError: 'list' object has no attribute 'close'* please help to to find the error. or suggest some simpler or better way note: 1)file temp9 is already exist 2)this programme is giving me all my outputs, but at the end of the out ..its giving me that error. Others have pointed out the specific problem that gives you this error. But I'd like to point out a few other things to consider: 1) Don't mix tabs and spaces. Best practice is to bind tab to (4) spaces in your editor, and never have a tab in a Python source file. 2) Think about your variable names. As it stands, f0 is a list of lines, f1 is a list of word within a line, and f2 is a file. No wonder you accidentally tried to close the list. I'd suggest things like: infile = open() lines = infile.readlines() outfile = open() for line in lines: words = line.split( ) or even val1, val2 = lines.split( ) Then of course the last two lines become infile.close() outfile.close() 3) Learn to use the for statement directly on a list, rather than using len() on the list to make an index, then using the index to find the value 4) On the open() calls, get your modes right. Looks like you really want infile = open(infilename, r) outfile = open(outfilename, w) 5) Consider using tuples in your add_1 list, rather than separate elements. That way, each element of the list would contain both sum and mean. add_1.append((add, mean)) and the final print would become for item in add_1: print item[0],, item[1] 6) Put anything over three lines into a function, instead of doing it at module scope. That way, you'll be clearer about what things are local to this code, and what might be useful to other code in the same module. In this case, infilename, and outfilename might be arguments to that function. There are lots of other refinements, but these are all within your reach, and would make the program much clearer. -- http://mail.python.org/mailman/listinfo/python-list
Re: Colour of output text
On 2009-07-10, garabik-news-2005...@kassiopeia.juls.savba.sk garabik-news-2005...@kassiopeia.juls.savba.sk wrote: Tim Harig user...@ilthio.net wrote: On 2009-07-09, Alex Rosslyn black.line...@gmail.com wrote: I would like to learn a way of changing the colour of a particular part of the output text. I've tried the following On Unix operating systems this would be done through the curses interface: http://docs.python.org/library/curses.html Or using ANSI colour codes: Which will only work for ANSI terminals. -- http://mail.python.org/mailman/listinfo/python-list
Tkinter only: table widget with canvas...
My intention is to keep dependencies low that means using python and tkinter as base package is quite easy because it's available on nearly every system. There is good documentation on Tkinter but going into the depth I'm missing many details. As an example... Using the Tkinter.Canvas class I should be able to create a nice table. The missing informations are: a) Assume I would have some different widgets to add per row. How do I get the maximum row height? b) Assume something like a label in one column. The length of all texts in a column will differ. How do I choose the maxium column width? c) Placing headers in a canvas does not look like a good idea because I don't want to scroll the headers. Am I right? c.1) How do I place a none scrollable header in a canvas? or c.2) How do I place all headers outside the canvas correctly above the relating column? best regards Thomas -- http://mail.python.org/mailman/listinfo/python-list
Implementing a cache
Hello, I want to implement a caching data structure in Python that allows me to: 1. Quickly look up objects using a key 2. Keep track of the order in which the objects are accessed (most recently and least recently accessed one, not a complete history) 3. Quickly retrieve and remove the least recently accessed object. Here's my idea for the implementation: The objects in the cache are encapsulated in wrapper objects: class OrderedDictElement(object): __slots__ = [ next, prev, key, value ] These wrapper objects are then kept in a linked lists and in an ordinary dict (self.data) in parallel. Object access then works as follows: def __setitem__(self, key, value): if key in self.data: # Key already exists, just overwrite value self.data[key].value = value else: # New key, attach at head of list with self.lock: el = OrderedDictElement(key, value, next=self.head.next, prev=self.head) self.head.next.prev = el self.head.next = el self.data[key] = el def __getitem__(self, key): return self.data[key].value To 'update the access time' of an object, I use def to_head(self, key): with self.lock: el = self.data[key] # Splice out el.prev.next = el.next el.next.prev = el.prev # Insert back at front el.next = self.head.next el.prev = self.head self.head.next.prev = el self.head.next = el self.head and self.tail are special sentinel objects that only have a .next and .prev attribute respectively. While this is probably going to work, I'm not sure if its the best solution, so I'd appreciate any comments. Can it be done more elegantly? Or is there an entirely different way to construct the data structure that also fulfills my requirements? I already looked at the new OrderedDict class in Python 3.1, but apparently it does not allow me to change the ordering and is therefore not suitable for my purpose. (I can move something to one end by deleting and reinserting it, but I'd like to keep at least the option of also moving objects to the opposite end). Best, -Nikolaus -- »Time flies like an arrow, fruit flies like a Banana.« PGP fingerprint: 5B93 61F8 4EA2 E279 ABF6 02CF A9AD B7F8 AE4E 425C -- http://mail.python.org/mailman/listinfo/python-list
Re: Query regarding set([])?
vox wrote: On Jul 10, 2:04 pm, Peter Otten __pete...@web.de wrote: You are probably misinterpreting len(s3). s3 contains lines occuring in file1 but not in file2. Duplicate lines are only counted once, and the order doesn't matter. So there are 119 lines that occur at least once in file2, but not in file1. If that is not what you want you have to tell us what exactly you are looking for. Peter Hi, Thanks for the answer. I am looking for a script that compares file1 and file2, for each line in file1, check if line is present in file2. If the line from file1 is not present in file2, print that line/write it to file3, because I have to know what lines to add to file2. BR, Andy There's no more detail in that response. To the level of detail you provide, the program works perfectly. Just loop through the set and write the members to the file. But you have some unspecified assumptions: 1) order doesn't matter 2) duplicates are impossible in the input file, or at least not meaningful. So the correct output file could very well be smaller than either of the input files. And a few others that might matter: 3) the two files are both text files, with identical line endings matching your OS default 4) the two files are ASCII, or at least 8 bit encoded, using the same encoding (such as both UTF-8) 5) the last line of each file DOES have a trailing newline sequence -- http://mail.python.org/mailman/listinfo/python-list
Re: Implementing a cache
On Fri, 10 Jul 2009 09:22:29 -0400, Nikolaus Rath wrote: Hello, I want to implement a caching data structure in Python that allows me to: 1. Quickly look up objects using a key 2. Keep track of the order in which the objects are accessed (most recently and least recently accessed one, not a complete history) 3. Quickly retrieve and remove the least recently accessed object. Google for python LRU cache. Here are the first three hits: http://code.activestate.com/recipes/498245/ http://code.activestate.com/recipes/252524/ http://www.algorithm.co.il/blogs/index.php/programming/python/small-python-challenge-no-2-lru-cache/ -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Where does setuptools live?
Inky 788 wrote: Currently, distutils itself is being actively developed. More info about this here: http://tarekziade.wordpress.com/ My (albeit anonymous) advice is: use distutils. Manually download packages as-needed from PyPI and install manually using standard distutils. No thanks. I'm a big fan of buildout. Making it possible for packages to specify their dependencies is a big win... Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk -- http://mail.python.org/mailman/listinfo/python-list
Re: Query regarding set([])?
On Jul 10, 4:17 pm, Dave Angel da...@ieee.org wrote: vox wrote: On Jul 10, 2:04 pm, Peter Otten __pete...@web.de wrote: You are probably misinterpreting len(s3). s3 contains lines occuring in file1 but not in file2. Duplicate lines are only counted once, and the order doesn't matter. So there are 119 lines that occur at least once in file2, but not in file1. If that is not what you want you have to tell us what exactly you are looking for. Peter Hi, Thanks for the answer. I am looking for a script that compares file1 and file2, for each line in file1, check if line is present in file2. If the line from file1 is not present in file2, print that line/write it to file3, because I have to know what lines to add to file2. BR, Andy There's no more detail in that response. To the level of detail you provide, the program works perfectly. Just loop through the set and write the members to the file. But you have some unspecified assumptions: 1) order doesn't matter 2) duplicates are impossible in the input file, or at least not meaningful. So the correct output file could very well be smaller than either of the input files. And a few others that might matter: 3) the two files are both text files, with identical line endings matching your OS default 4) the two files are ASCII, or at least 8 bit encoded, using the same encoding (such as both UTF-8) 5) the last line of each file DOES have a trailing newline sequence Thanks all for the input! I have guess I have to think it through a couple times more. :) BR, Andy -- http://mail.python.org/mailman/listinfo/python-list
Re: Clarity vs. code reuse/generality
2009/7/9 kj no.em...@please.post: Thanks for the encouragement. [snip] into code. And by this I mean not only assumptions about the correctness of their code (the typical scope of assertions), but also, more broadly, assumptions about the data that they are dealing with (which often comes from external sources with abysmal quality control). There we diverge. A lot. If correctness of the code trumps everything else (in fact, if it matters at all) and the external data has abysmal quality control then it *must* be checked for correctness before it is used. If it is not, you have no idea whether your output is correct or not. And assertions *will* *not* reliably provide that checking (because they may not be executed). You *must* actively check the data, using good old-fasioned if statements and so on, because not to do so is to declare that you *don't* care about correctness. You *know* the input is often wrong, but you're not bothering to check it? -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list
Re: Query regarding set([])?
vox wrote: On Jul 10, 4:17 pm, Dave Angel da...@ieee.org wrote: vox wrote: On Jul 10, 2:04 pm, Peter Otten __pete...@web.de wrote: You are probably misinterpreting len(s3). s3 contains lines occuring in file1 but not in file2. Duplicate lines are only counted once, and the order doesn't matter. So there are 119 lines that occur at least once in file2, but not in file1. If that is not what you want you have to tell us what exactly you are looking for. Peter Hi, Thanks for the answer. I am looking for a script that compares file1 and file2, for each line in file1, check if line is present in file2. If the line from file1 is not present in file2, print that line/write it to file3, because I have to know what lines to add to file2. BR, Andy There's no more detail in that response. To the level of detail you provide, the program works perfectly. Just loop through the set and write the members to the file. But you have some unspecified assumptions: 1) order doesn't matter 2) duplicates are impossible in the input file, or at least not meaningful. So the correct output file could very well be smaller than either of the input files. And a few others that might matter: 3) the two files are both text files, with identical line endings matching your OS default 4) the two files are ASCII, or at least 8 bit encoded, using the same encoding (such as both UTF-8) 5) the last line of each file DOES have a trailing newline sequence Thanks all for the input! I have guess I have to think it through a couple times more. :) Indeed. Note that others thinking through related problems have come up with http://docs.python.org/library/difflib.html Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: PyGtk Depends on Numeric
In article 1ebe9314-9434-459a-bd3e-2b2386a35...@n11g2000yqb.googlegroups.com, dieter vel.ac...@gmail.com wrote: Get with the times people and port to numpy. :P Don't you think its about time? Are you trying to get something to happen or just posting a random drive-by? -- Aahz (a...@pythoncraft.com) * http://www.pythoncraft.com/ as long as we like the same operating system, things are cool. --piranha -- http://mail.python.org/mailman/listinfo/python-list
Re: AP -- MeAmI.org Paces Google
David Bernier david...@videotron.ca a écrit dans le message de news: h36ki102...@news5.newsguy.com... Musatov wrote: On Jul 9, 7:54 pm, David Bernier david...@videotron.ca wrote: Musatov wrote: Los Angeles (AP) --MeAmI.org now has users in 50 countries following its adopted use in Pakistan. The search engine has grown in popularity 10,000 fold following its Beta test launch three months ago in April, 2009. Supporters of the site claim it is better than rival Google upon which platform it is based. Controversy arose after MeAmI.org search code allowed users to search other users Google results with no advertising. It is truly an innovative thing we are doing, said Founder and CEO, Martin Musatov. Letting users search the results of other Google users immediately results in a level of accuracy and relevance above and beyond Google. Google changed their API following the launch or MeAmI.org and explored the possibility of blocking site access from MeAmI.org to Google search results but was unable to do so. Critics of MeAmI.org say what it is doing is tantamount to intellectual theft. When asked about this topper Musatov exclaimed, The Internet was made for people, not companies. An analyst at Goldman Sachs says, requesting to remain anonymous, MeAmI.org has a strong presence in promoting itself as a vehicle for global activism and to tell you the truth, this makes it much more likely an acquisition target than potential intellectual property violator. Google could not be reached for comment. Mr. Musatov, do you know who originally wrote the article above? Thank you. David Bernier- Hide quoted text - - Show quoted text - Yes. Mr. Musatov, do you know the name of the person who originally wrote the article above? Thank you. David Bernier Maybe Mr. Musatov should answer the following questions instead : 1. Did you write the article above? 2. If not, who did? And I don't want AP as the answer, but the name of the journalist. David, don't take it bad, but he answered your question with an accurate answer (yes), You gave him the opportunity to avoid the real answer and he took it. Based on Musatov's strange behavior and logic, don't expect more from him. Ask anyone else the same question and you'd get a real answer. BTW, my guess for question 2 would be the Masked Logician, Floetry, scriber77, or Professor X. Francois -- http://mail.python.org/mailman/listinfo/python-list
Re: language analysis to enforce code standards
In article mailman.2948.1247229186.8015.python-l...@python.org, Jean-Michel Pichavant jeanmic...@sequans.com wrote: You could also verify there are at least N different characters used in the sentence: N = 5 # must contains at least 5 different characters record = [] for c in s: if c not in record: record += [c] if len(record) = N: print at least %s different characters % N Much simpler and *way* more efficient with a set: if len(set(s)) N: print Must have at least %s different characters % N -- Aahz (a...@pythoncraft.com) * http://www.pythoncraft.com/ as long as we like the same operating system, things are cool. --piranha -- http://mail.python.org/mailman/listinfo/python-list
problem with keys combination!
Hi at all,
I made a simple program that make a screenshot of Desktop and use it
as fullscreen background and then a ball erase image making illusion
that erase Desktop. The program working fine and I succesfully blocked
all keys but I have a problem with hotkey combination Ctrl-Alt-
Del...that bypass my FullScreen Application. Reading in google I
understood that if I want disable this keys I have to operate in more
low level. But I'm a newbe and I don't know how to make it(operate
with api is very hard 4 me).I tried several days to find a workaround
like replace one of that keys but doesn't work :-((
Plus..I can't install pyHook because there isn't a 2.6 version :-((
Can someone help me ??
thanks in advance
Alex
This is a piece of my code:
while True:
pg.event.pump()
keyinput = pg.key.get_pressed()
# press ESC to exit
if keyinput[pg.K_ESCAPE]
raise SystemExit
if keyinput[pygame.K_LALT] and keyinput[pygame.K_LCTRL] and
keyinput[pygame.K_DELETE]:
win32api.keybd_event(win32con.VK_ESCAPE,0)
#shell = win32com.client.Dispatch(WScript.Shell)
#shell.SendKeys({ESC})
#ignore keyboard input
def IgnoreKeyboardInterrupt():
return signal.signal(signal.SIGINT,signal.SIG_IGN)
--
http://mail.python.org/mailman/listinfo/python-list
Threading.Condition problem
Hello everyone,
I wrote a small example that listens for xmpp msgs in a thread. The main
program calls a function that blocks (using Condition.wait) until a msg
has been received and then returns the msg. When a msg arrives, it is
put in a variable in the thread's object, it then calls the notify()
attr on the Condition object. For some reason, this doesn't work, the
thread gets the msg, tries to notify the Condition object, fails because
the lock has not been acquired yet and blocks. I tried ignoring the
failure, thinking that since it has not been acquired yet then when it
is, it will get the msg right away and never call Condition.wait, thus
not causing any problems, but this does not work either. Does someone
know what I am doing wrong? I attached the code to this msg.
Thank you,
Gabriel
# Copyright (c) 2001-2006 Twisted Matrix Laboratories.
# See LICENSE for details.
import sys
from twisted.internet import reactor
from twisted.names.srvconnect import SRVConnector
from twisted.words.xish import domish, xpath
from twisted.words.protocols.jabber import xmlstream, client, jid
PRESENCE = '/presence' # this is an global xpath query to use in an observer
MESSAGE = '/message' # message xpath
IQ = '/iq' # iq xpath
class XMPPClientConnector(SRVConnector):
def __init__(self, reactor, domain, factory):
SRVConnector.__init__(self, reactor, 'xmpp-client', domain, factory)
def pickServer(self):
host, port = SRVConnector.pickServer(self)
if not self.servers and not self.orderedServers:
# no SRV record, fall back..
port = 5222
return host, port
class Client(object):
def __init__(self, client_jid, secret, dest=None):
self.dest = dest
f = client.XMPPClientFactory(client_jid, secret)
f.addBootstrap(xmlstream.STREAM_CONNECTED_EVENT, self.connected)
f.addBootstrap(xmlstream.STREAM_END_EVENT, self.disconnected)
f.addBootstrap(xmlstream.STREAM_AUTHD_EVENT, self.authenticated)
f.addBootstrap(xmlstream.INIT_FAILED_EVENT, self.init_failed)
connector = XMPPClientConnector(reactor, client_jid.host, f)
connector.connect()
def rawDataIn(self, buf):
print RECV: %s % unicode(buf, 'utf-8').encode('ascii', 'replace')
def rawDataOut(self, buf):
print SEND: %s % unicode(buf, 'utf-8').encode('ascii', 'replace')
def connected(self, xs):
print 'Connected.'
self.xmlstream = xs
# Log all traffic
xs.rawDataInFn = self.rawDataIn
xs.rawDataOutFn = self.rawDataOut
def disconnected(self, xs):
print 'Disconnected.'
try:
reactor.stop()
except:
pass
def authenticated(self, xs):
def sendPresence():
presence = domish.Element((None, 'presence'))
xs.send(presence)
def sendMsg(user, res=None):
msg = domish.Element((jabber:client, message))
msg[to] = %...@localhost%s % (user, / + res if res else )
body = msg.addElement(body, content = Hello world %s % res if res else )
subject = msg.addElement(subject, content = will this be displayed?)
thread = msg.addElement(thread, content = this shouldn't be displayed)
xs.send(msg)
print Authenticated.
xs.addObserver(PRESENCE, self.onPresence, 1)
#xs.addObserver(IQ, self.onIq, 1)
xs.addObserver(MESSAGE, self.onMessage, 1)
reactor.callLater(0, sendPresence)
if(self.dest):
reactor.callLater(2, sendMsg, self.dest, toto)
reactor.callLater(4, sendMsg, self.dest, titi)
#msg = domish.Element((jabber:client, message))
#msg[to] = grosse...@localhost
#body = msg.addElement(body, content = Hello world)
#subject = msg.addElement(subject, content = will this be displayed?)
#thread = msg.addElement(thread, content = this shouldn't be displayed)
#xs.send(msg)
#msg = domish.Element((jabber:client, iq))
#msg[to] = ser...@localhost
#msg[id] = 666
#xs.send(msg)
#msg = domish.Element((jabber:client, presence))
#msg[to] = grosse...@localhost
#msg[type] = subscribe
#xs.send(msg)
#reactor.callLater(5, xs.sendFooter)
def onMessage(self, msg):
Act on the message stanza that has just been received.
# return to sender
#msg = create_reply(msg)
#self.xmlstream.send(msg) # send the modified domish.Element
pass
#def onIq(self, iq):
#
#Act on the iq stanza that has just been received.
#
#iq = create_reply(iq)
#self.xmlstream.send(iq)
def onPresence(self, prs):
Act on the presence stanza that has just been received.
t =
Re: Threading.Condition problem
The previous msg w/ attached code is the wrong code, please use the code
attached to this msg, thank you and sorry for this.
Gabriel
Gabriel Rossetti wrote:
Hello everyone,
I wrote a small example that listens for xmpp msgs in a thread. The
main program calls a function that blocks (using Condition.wait) until
a msg has been received and then returns the msg. When a msg arrives,
it is put in a variable in the thread's object, it then calls the
notify() attr on the Condition object. For some reason, this doesn't
work, the thread gets the msg, tries to notify the Condition object,
fails because the lock has not been acquired yet and blocks. I tried
ignoring the failure, thinking that since it has not been acquired yet
then when it is, it will get the msg right away and never call
Condition.wait, thus not causing any problems, but this does not work
either. Does someone know what I am doing wrong? I attached the code
to this msg.
Thank you,
Gabriel
from __future__ import with_statement
import xmpp, sys
from threading import Thread, Condition, Event
class Listener(Thread):
def __init__(self, ws):
Thread.__init__(self)
self.interrupt = Event()
self.message = None
self._cv = ws._cv
self.client = ws._client
self.client.RegisterHandler('message', self.onMessage)
def onMessage(self, conn, msg):
self.message = msg
try:
self._cv.notify()
except RuntimeError:
print self._cv has not acquired the lock yet
def getMsg(self):
return self.message
def run(self):
try:
while(not self.interrupt.isSet()):
self.client.Process(1)
except KeyboardInterrupt:
return 0
class WS(object):
def __init__(self, username, password, res):
self._jid = xmpp.protocol.JID(username)
self._client = xmpp.Client(self._jid.getDomain())
self._cv = Condition()
if(self._client.connect(server=(localhost, 5222)) == ):
raise Exception(Error while connecting!)
if(self._client.auth(self._jid.getNode(), password, res) is None):
raise Exception(Authentication failed!)
self._client.sendInitPresence()
self._listener = Listener(self)
self._listener.start()
def getMsg(self, mid=None):
with self._cv:
res = self._listener.getMsg()
while not res:
self._cv.wait()
res = self._listener.getMsg()
return res
if(__name__ == __main__):
ws = WS(t...@localhost, 123, test)
res = ws.getMsg()
print I just received : %s % str(res)
sys.exit(0)
--
http://mail.python.org/mailman/listinfo/python-list
Threading.Condition problem
Sorry if this appears twice, I sent it once with an attachment and it
never arrived so maybe the attachment is posing problems. I inlined the
code this time (at the bottom), thank you,
Gabriel
## Original message
Hello everyone,
I wrote a small example that listens for xmpp msgs in a thread. The main
program calls a function that blocks (using Condition.wait) until a msg
has been received and then returns the msg. When a msg arrives, it is
put in a variable in the thread's object, it then calls the notify()
attr on the Condition object. For some reason, this doesn't work, the
thread gets the msg, tries to notify the Condition object, fails because
the lock has not been acquired yet and blocks. I tried ignoring the
failure, thinking that since it has not been acquired yet then when it
is, it will get the msg right away and never call Condition.wait, thus
not causing any problems, but this does not work either. Does someone
know what I am doing wrong? I attached the code to this msg.
Thank you,
Gabriel
Example code
from __future__ import with_statement
import xmpp, sys
from threading import Thread, Condition, Event
class Listener(Thread):
def __init__(self, ws):
Thread.__init__(self)
self.interrupt = Event()
self.message = None
self._cv = ws._cv
self.client = ws._client
self.client.RegisterHandler('message', self.onMessage)
def onMessage(self, conn, msg):
self.message = msg
try:
self._cv.notify()
except RuntimeError:
print self._cv has not acquired the lock yet
def getMsg(self):
return self.message
def run(self):
try:
while(not self.interrupt.isSet()):
self.client.Process(1)
except KeyboardInterrupt:
return 0
class WS(object):
def __init__(self, username, password, res):
self._jid = xmpp.protocol.JID(username)
self._client = xmpp.Client(self._jid.getDomain())
self._cv = Condition()
if(self._client.connect(server=(localhost, 5222)) == ):
raise Exception(Error while connecting!)
if(self._client.auth(self._jid.getNode(), password, res) is None):
raise Exception(Authentication failed!)
self._client.sendInitPresence()
self._listener = Listener(self)
self._listener.start()
def getMsg(self, mid=None):
with self._cv:
res = self._listener.getMsg()
while not res:
self._cv.wait()
res = self._listener.getMsg()
return res
if(__name__ == __main__):
ws = WS(t...@localhost, 123, test)
res = ws.getMsg()
print I just received : %s % str(res)
sys.exit(0)
--
http://mail.python.org/mailman/listinfo/python-list
Re: tough-to-explain Python
On Fri, 10 Jul 2009 08:28:29 -0700, Scott David Daniels wrote: Steven D'Aprano wrote: Even *soup stock* fits the same profile as what Hendrik claims is almost unique to programming. On its own, soup stock is totally useless. But you make it, now, so you can you feed it into something else later on. Or instant coffee. I think I'll avoid coming to your house for a cup of coffee. :-) I meant the instant coffee powder is prepared in advance. It's useless on it's own, but later on you feed it into boiling water, add sugar and milk, and it's slightly less useless. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: help me to find the error
jhinak sen wrote: hey, thanx a lot :) i got ur points .. and it really helps.. and please also tell me ... where i can get more basic and detail knowledge of python.. as i am beginners in this , i need more examples of python programmes so that i can understand better. also if you know of any gud pdf file or book please let me know thnx a lot jhinak On Fri, Jul 10, 2009 at 7:25 PM, Dave Angel da...@ieee.org wrote: jhinak sen wrote: hi, i am a beginner in python language, i am trying with this programme : to find the addition and mean from a data set in a file and writing the mean and sum in some other file : *#! /usr/bin/env python import re import cPickle as p import math from numpy import * f0= open(temp9,r+).readlines() f2= open(out1,r+) add_1=[ ]; for i in range(0, len(f0)): f1=f0[i].split() add= float(f1[1])+float(f1[2]) mean= float(add)/2 print (f1[1]).ljust(6) ,(f1[2]).ljust(6),repr(add).ljust(7), repr(mean).ljust(7) add_1.append(add) add_1.append(mean) f2.write(%s % repr(add).ljust(7)),f2.write(%s % repr(mean).ljust(7)) print printing from file for i in range(0, len(add_1),2): print add_1[i],, add_1[i+1] f0.close() f2.close()* and this programme is givving me this error : *Traceback (most recent call last): File ./temporary1.py, line 24, in module f0.close() AttributeError: 'list' object has no attribute 'close'* please help to to find the error. or suggest some simpler or better way note: 1)file temp9 is already exist 2)this programme is giving me all my outputs, but at the end of the out ..its giving me that error. Others have pointed out the specific problem that gives you this error. But I'd like to point out a few other things to consider: 1) Don't mix tabs and spaces. Best practice is to bind tab to (4) spaces in your editor, and never have a tab in a Python source file. 2) Think about your variable names. As it stands, f0 is a list of lines, f1 is a list of word within a line, and f2 is a file. No wonder you accidentally tried to close the list. I'd suggest things like: infile = open() lines = infile.readlines() outfile = open() for line in lines: words = line.split( ) or even val1, val2 = lines.split( ) Then of course the last two lines become infile.close() outfile.close() 3) Learn to use the for statement directly on a list, rather than using len() on the list to make an index, then using the index to find the value 4) On the open() calls, get your modes right. Looks like you really want infile = open(infilename, r) outfile = open(outfilename, w) 5) Consider using tuples in your add_1 list, rather than separate elements. That way, each element of the list would contain both sum and mean. add_1.append((add, mean)) and the final print would become for item in add_1: print item[0],, item[1] 6) Put anything over three lines into a function, instead of doing it at module scope. That way, you'll be clearer about what things are local to this code, and what might be useful to other code in the same module. In this case, infilename, and outfilename might be arguments to that function. There are lots of other refinements, but these are all within your reach, and would make the program much clearer. Please don' t top-post. Putting your reply out of order makes it harder for others to see the sequences of things. Some people top-post everything, but on this mailing list (and maybe most), the standard is to add to bottom, or inline where appropriate. Anyway, http://docs.python.org/tutorial/ http://diveintopython.org/ http://www.openbookproject.net/thinkCSpy/ are all good, depending on your experience with other languages, and with your computer's OS. You could also check out http://code.activestate.com/recipes/ or http://code.activestate.com/recipes/langs/python/ for Python specifically which has a large set of relatively small modules of code. For a examples that might stretch your thought process: http://code.activestate.com/recipes/576755/ http://code.activestate.com/recipes/576647/ -- http://mail.python.org/mailman/listinfo/python-list
Re: tough-to-explain Python
On 10 Jul 2009 15:48:47 GMT Steven D'Aprano st...@remove-this-cybersource.com.au wrote: I meant the instant coffee powder is prepared in advance. It's useless on it's own, but later on you feed it into boiling water, add sugar and milk, and it's slightly less useless. I don't know about that. I find instant coffee pretty useless no matter what it is fed to. :-) -- D'Arcy J.M. Cain da...@druid.net | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
Automate rsync w/ authentication
I am trying to automate rsync to backup server A from server B. I have set up a private/public key between the two servers so I don't have to enter a password when using rsync. Running rsync manually with the following command works fine: rsync -av --dry-run -e /usr/bin/ssh -i /home/bry/keys/brybackup.key r...@10.0.45.67:/home/bry/jquery.lookup /home/bry/tmp But when I try to do it with python, the subprocess simply returns the ssh -h output on stderr like I am passing some invalid syntax. What is wrong in my translation of rsync's -e command from shell to pythyon? #! /usr/bin/python from subprocess import Popen, PIPE rsyncExec = '/usr/bin/ssh' source = 'r...@10.0.45.67:/home/bry/jquery.lookup' dest = '/home/bry/tmp' rshArg = '-e /usr/bin/ssh -i /home/bry/keys/brybackup.key' args = [rsyncExec, '-a', '-v', '--dry-run', rshArg, source, dest] try: p = Popen(args, stdout=PIPE, stderr=PIPE) print 'rsync running with pid %s' % p.pid out, err = p.communicate() print 'Errors: %s' % err print 'Output: %s' % out except Exception: print 'Error running rsync' -- http://mail.python.org/mailman/listinfo/python-list
Re: problem with keys combination!
On Fri, 10 Jul 2009 08:33:18 -0700, Alex wrote: Hi at all, I made a simple program that make a screenshot of Desktop and use it as fullscreen background and then a ball erase image making illusion that erase Desktop. The program working fine and I succesfully blocked all keys but I have a problem with hotkey combination Ctrl-Alt- Del...that bypass my FullScreen Application. What operating system are you using? Windows? As I understand it, you can't block, modify, or otherwise access Ctrl-Alt- Del while running under Windows: it is the Secure Attention Key, and is designed to be virtually impossible to interfere with. It's not *quite* impossible, but it is the deepest, darkest black magic. Microsoft makes it close enough to impossible as makes no difference even for experienced developers. As a newbie, well, put it this way: it's like somebody saying Hi guys, I have a shiny new Swiss Army Knife, the one with the screwdriver and the corkscrew. I'd like to build my own Space Shuttle -- what do I do? http://stackoverflow.com/questions/886076/how-can-i-intercept-all-key-events-including-ctrlaltdel-and-ctrltab http://en.wikipedia.org/wiki/Control-Alt-Delete You should also read this: http://blogs.msdn.com/oldnewthing/archive/2004/02/16/73780.aspx -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: DBI module deprecated at Python 2.5--what to use in its place?
dana wrote: I have a variety of Python 2.4 scripts that utilitize the DBI and ODBC modules together. Although I don't have Python 2.5, I've been informed the DBI module has been deprecated at 2.5. A few questions: 1) Although deprecated, will it work at all in 2.5? Does the fact that it is deprecrated mean it has been removed entirely, or does Python 2.5 simply issuing a warning? 2) What do I use in place of DBI for my Python 2.4. scripts that import modules DBI and ODBC together. I don't use DBI directly. It was simply a dependency for the ODBC module as best I knew. If you're looking for a stable and maintained ODBC for Python, have a look at our mxODBC extension or mxODBC Connect package: http://www.egenix.com/products/python/mxODBC/ http://www.egenix.com/products/python/mxODBCConnect/ -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Jul 10 2009) Python/Zope Consulting and Support ...http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ...http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Remoting over SSH
Lucas Carvalho wrote: Hussein B wrote: Hey, I want to perform commands on a remote server over SSH. What do I need? Thanks. Hi, If you want to use the SSH2 protocol into a python code, you should take a look at this module: paramiko [1]. [1] http://www.lag.net/paramiko/ If you're looking for remote Python execution over SSH have a look at http://codespeak.net/py/dist/execnet.html -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Jul 10 2009) Python/Zope Consulting and Support ...http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ...http://python.egenix.com/ ::: Try our new mxODBC.Connect Python Database Interface for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ -- http://mail.python.org/mailman/listinfo/python-list
Re: help me to find the error
On Fri, 10 Jul 2009 11:57:21 -0400, Dave Angel wrote: [...] Please don' t top-post. Putting your reply out of order makes it harder for others to see the sequences of things. Some people top-post everything, but on this mailing list (and maybe most), the standard is to add to bottom, or inline where appropriate. Inline is nearly always appropriate. Please trim your replies, leaving only what you need for context and what you are replying to directly, not the entire every-growing collection of quoted-quoted-quoted-quoted-quotes. Thank you. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: tough-to-explain Python
On Jul 10, 2:11 pm, Steven D'Aprano st...@remove-this- cybersource.com.au wrote: On Fri, 10 Jul 2009 12:54:21 +0200, Hendrik van Rooyen wrote: Steven D'Aprano st...@remove-this-cye.com.au wrote: On Wed, 08 Jul 2009 22:05:57 -0700, Simon Forman wrote: persistent idea out there that programming is a very accessible skill, like cooking or gardening, anyone can do it, and even profit from it, monetarily or otherwise, etc., and to some extent I am Programming is not like any other human activity. In practice? In principle? Programming in principle is not the same as it is performed in practice. But in either case, programming requires both the logical reasoning of mathematics and the creativity of the arts. Funnily enough, I do not buy this arty creativity stuff. - or are you talking about making a website look pretty? I must admit, it never crossed my mind that anyone here would claim that there was no creativity involved in programming, that it was all a mindless, algorithmic process capable of being done by a simple mechanical device. This is certainly the accusation made against *bad* programmers -- that they can't actually solve new, unique problems, but just apply recipes they learned without any insight or intelligence. The sort of people who program so poorly that a trained monkey could do what they do. I wholeheartedly agree. Coming up with Duff's device is nothing if not creative. My mind still reels at trying to grok it. http://www.lysator.liu.se/c/duffs-device.html Even *soup stock* fits the same profile as what Hendrik claims is almost unique to programming. On its own, soup stock is totally useless. But you make it, now, so you can you feed it into something else later on. Or instant coffee. I've always found cooking an apt metaphor for programming. You've got your well-limited for loops (cook for x minutes), your less straightforward while/until loops (roast until golden), you have your subprocedures (prepare sauce in advance/in parallel), you have some conditionals (tenderize the steak if the meat isn't really that tender), etc etc. The complexities of assignment can be easily visualized in terms of containers and mixing stuff together. Nothing makes a += b more obvious than having a bowl of cream (a), an egg (b), and adding the egg to the bowl of cream (a += b). Well, except for the part where that in that case evaluating b is destructive ;) They can't reason? Then what are they doing when they manipulate symbols? Computers aren't intelligent. They only think they are. Or, more to the point: the typical definition of reasoning tends to involve more of what defines humans as self-aware, animate beings than what is usually ascribed to computers. -- http://mail.python.org/mailman/listinfo/python-list
Re: Clarity vs. code reuse/generality
On Jul 9, 2009, at 10:57 PM, Steven D'Aprano wrote: On Fri, 10 Jul 2009 03:28:04 +0100, Nobody wrote: On Thu, 09 Jul 2009 04:57:15 -0300, Gabriel Genellina wrote: Nobody says you shouldn't check your data. Only that assert is not the right way to do that. assert is not the right way to check your *inputs*. It's a perfectly reasonable way to check data which should be valid, as well as a way to document what variables are supposed to contain. Where are those variables coming from? The distinction really boils down to this: * asserts should never fail. If there is any chance that an assertion might fail outside of test suites, then don't use assert. You can't control what input the caller provides to a function, so unless the data is generated inside the function, a caller might provide something unexpected. Therefore, assert is inappropriate for checking function parameters, even if that function is private and only called by your own functions. (1) So-called private or internal functions have a habit of becoming public, and then you have asserts in public functions. (2) If public() calls _private(x), and _private uses assert to check the value of x, there is a risk that if public() is buggy and supplies an invalid x, the assertion will never be checked and _private() will return incorrect results. (3) assert is absolutely unsuitable for enforcing pre-conditions and post- conditions, unless such conditions are mere guidelines, because assert can be switched off at runtime. Unless, of course, you want to switch off such checking at runtime, as you might when using a design-by-contract approach. Charles Yeomans -- http://mail.python.org/mailman/listinfo/python-list
BayPIGgies at OSCON: 7/23 8-9:30pm
NOTE: time change AND location change The July BayPIGgies meeting will be held at OSCON in the San Jose Convention Center as one of the BoF (Birds of a Feather) sessions from 8pm to 9:30pm Thursday July 23. Everyone is welcome: you do NOT need to be an OSCON member to attend a BoF. Wesley Chun will have a newbie-oriented What is Python? BoF from 7-8pm in the same room as BayPIGgies (we don't know which room yet). The July meeting is supposed to have a Django focus, but the program hasn't been settled yet, either. For more information, see http://baypiggies.net/ Discussion of details will take place on the BayPIGgies list: http://mail.python.org/mailman/listinfo/baypiggies -- Aahz (a...@pythoncraft.com) * http://www.pythoncraft.com/ as long as we like the same operating system, things are cool. --piranha -- http://mail.python.org/mailman/listinfo/python-list
problem with subprocess
Hi all,
I need start a openoffice in Xvfb, but when I call with the DISPLAY
occurs this error:
[r...@localhost oood]# Xvfb :99 -screen 0 1024x768x24
In [9]: subprocess.call('/opt/ooo-dev3/program/soffice.bin')
Out[9]: 0
In [10]: subprocess.call('DISPLAY=:99 /opt/ooo-dev3/program/soffice.bin')
---
OSError Traceback (most recent call last)
/home/gabriel/ipython console in module()
/usr/lib/python2.6/subprocess.pyc in call(*popenargs, **kwargs)
442 retcode = call([ls, -l])
443
-- 444 return Popen(*popenargs, **kwargs).wait()
445
446
/usr/lib/python2.6/subprocess.pyc in __init__(self, args, bufsize,
executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd,
env, universal_newlines, startupinfo, creationflags)
593 p2cread, p2cwrite,
594 c2pread, c2pwrite,
-- 595 errread, errwrite)
596
597 # On Windows, you cannot just redirect one or two
handles: You
/usr/lib/python2.6/subprocess.pyc in _execute_child(self, args,
executable, preexec_fn, close_fds, cwd, env, universal_newlines,
startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread, c2pwrite,
errread, errwrite)
1104 os.waitpid(self.pid, 0)
1105 child_exception = pickle.loads(data)
- 1106 raise child_exception
1107
1108
OSError: [Errno 2] No such file or directory
I am using subprocess because I need store the pid. Any suggestions?
thanks in advance,
Gabriel M. Monnerat
--
http://mail.python.org/mailman/listinfo/python-list
Re: Where does setuptools live?
On Jul 10, 10:26 am, Chris Withers ch...@simplistix.co.uk wrote: Inky 788 wrote: Currently, distutils itself is being actively developed. More info about this here:http://tarekziade.wordpress.com/ My (albeit anonymous) advice is: use distutils. Manually download packages as-needed from PyPI and install manually using standard distutils. No thanks. I'm a big fan of buildout. Making it possible for packages to specify their dependencies is a big win... Yup, it's a big win. But package installation for Python is a bit of a mess right now. Neither setuptools nor buildout (nor pip for that matter) are a standard part of Python. It's rather silly that although Python is a batteries-included language, and it's mid-2009, and Python 3.1 has been released, that Python *still* doesn't have a standard built-in way to handle package installation (including dependencies and uninstallation). My guess is that once distutils finishes getting spruced up, some intrepid hacker is going to: * take the best parts of pip and the best parts of setuptools (I don't know anything about buildout), * stir vigorously, * ruthlessly remove the excess pieces, * write good documentation for it, * throw the result up on github/launchpad/bitbucket/whatever, and then *that's* what everyone's going to start using and which will eventually make it into the Python std lib. But that's just my anon 2 cents. -- http://mail.python.org/mailman/listinfo/python-list
Re: tkinter problem
David Smith d...@cornell.edu wrote in message news:h35f78$pt...@ruby.cit.cornell.edu... Paul Simon wrote: Peter Otten __pete...@web.de wrote in message news:h3481q$d95$0...@news.t-online.com... Paul Simon wrote: Chris Rebert c...@rebertia.com wrote in message news:mailman.2863.1247095339.8015.python-l...@python.org... On Wed, Jul 8, 2009 at 4:18 PM, Paul Simonpsi...@sonic.net wrote: I have the tkinter problem and need some assistance to straighten it out. From the web page http://wiki.python.org/moin/TkInter; I tested as in step 1 and cannot import _tkinter. I do not have that file on my computer, but do have tkinter.py in /usr/local/lib/python2.6/lib-tk. as well as the directories /usr/lib/tk8.5 and /usr/lib/tcl8.5. This python stuff is great, but the documentation frequently feels like it is just a bit out of my grasp. I realize that all of this is free but I understand the instructions on the web page to repair only to the point of confusion. I'm not an expert. How do I modify my python configuration? Is there a file that needs to be edited? Which setup.py file do I use? Make? or python setup.py build and python setup.py install? Thanks. I appreciate your help. - How did you install Python? - What Linux distro are you using? Cheers, Chris http://blog.rebertia.com Im using Mandriva 2008.1. I have to tell you honestly that I'm not sure exactly how I installed Python. Originally I had installed 2.5 from RPM but 2.6 was not available for my distro (2008.1) in RPM. I downloaded something from python.org and installed. Not sure if it was tarball or zip file. Zip or tar doesn't matter, you are installing from source. Python has to find the necessary include files for tcl/tk. These are in separate packages that you have to install before you invoke Python's configure script. I don't know what they are called on your system -- look for tk-dev.rpm, tcl-dev.rpm or similar. You may run into the same problem with other modules like readline. Peter Thank you Peter. I understand what you are saying but don't know how to do it. Although I installed from source, I followed a cookbook recipe. Could you tell me what files to execute, where they might be, and file arguments? I'm just ignorant, not stupid. ;-). Paul Just install the tkinter package from the Mandriva Linux Control Center's Software Management system. I just did it, doing a search for tkinter brought it right up. All done. --David Thanks to all for your patient help. I have made some progress, but still no success. I installed Active Tcl-8.5.7 and corrected the PATH accordingly. However I still get a missing message on building Python. Failed to find the necessary bits (!) to build these modules: _tkinter (among others) To find the necessary bits, look in setup.py in detect_modules() for teh module's name. Not sure what bits are, euphemism? but am about to wipe the disk and reinstall linux, etc. Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: Clarity vs. code reuse/generality
On Fri, 2009-07-10 at 02:57 +, Steven D'Aprano wrote: On Fri, 10 Jul 2009 03:28:04 +0100, Nobody wrote: On Thu, 09 Jul 2009 04:57:15 -0300, Gabriel Genellina wrote: Nobody says you shouldn't check your data. Only that assert is not the right way to do that. assert is not the right way to check your *inputs*. It's a perfectly reasonable way to check data which should be valid, as well as a way to document what variables are supposed to contain. Where are those variables coming from? The distinction really boils down to this: * asserts should never fail. If there is any chance that an assertion might fail outside of test suites, then don't use assert. I'm no expert, but the more I read this thread, and the more I think on it, the more I believe that asserts don't really need to exist outside of test suites. The function that assertions provide is handled in a far more robust and maintainable way by unit tests and doctests. Anything else should be handled by more descriptive exceptions. The use of assertions in regular code may just be a historical baby step on the way to real code testing. To play devils advocate for a moment, one possible use case for assert statements is if you need to test something that you can't easily get under a proper unittest or doctest. Maybe you need to know the value of a variable halfway through a method. A judicious assertion can help supplement your test suite A better solution would be to refactor so you can get the needed value under test, but if time constraints won't allow it, then make your assertion and move on, but only to help you debug the code, not to protect your code at runtime. Even then, why not use a proper Exception (unless speed is a major issue)? Even if it is only used internally in a module, I would still prefer a ValueError to an AssertionError. It tells you what's happening more clearly. And it protects you if another caller (even one internal to the class) calls it with a different set of assumptions. At minimum, I think there's a heavy burden on an author to justify the use of AssertionErrors rather than other kinds of Exceptions. Cheers, Cliff -- http://mail.python.org/mailman/listinfo/python-list
Re: problem with keys combination!
Hi Steven, As I understand it, you can't block, modify, or otherwise access Ctrl-Alt- Del while running under Windows: it is the Secure Attention Key, and is designed to be virtually impossible to interfere with. It's not *quite* impossible, but it is the deepest, darkest black magic. Microsoft makes it close enough to impossible as makes no difference even for experienced developers. No, is possible but for my level is quite impossible: http://www.codeproject.com/KB/winsdk/AntonioWinLock.aspx ...in this article the author move a lot a functions in a dll and make a demonstration with a VB and C code to use it...plus...there is his program that make it :- I thought that python can read dll via ctypes...but it's very hard for me :-(( As a newbie, well, put it this way: it's like somebody saying Hi guys, I have a shiny new Swiss Army Knife, the one with the screwdriver and the corkscrew. I'd like to build my own Space Shuttle -- what do I do? :-))but yes We cannn Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: problem with subprocess
gabrielmonnerat wrote:
Hi all,
I need start a openoffice in Xvfb, but when I call with the DISPLAY
occurs this error:
[r...@localhost oood]# Xvfb :99 -screen 0 1024x768x24
In [9]: subprocess.call('/opt/ooo-dev3/program/soffice.bin')
Out[9]: 0
In [10]: subprocess.call('DISPLAY=:99 /opt/ooo-dev3/program/soffice.bin')
---
OSError Traceback (most recent call
last)
/home/gabriel/ipython console in module()
/usr/lib/python2.6/subprocess.pyc in call(*popenargs, **kwargs)
442 retcode = call([ls, -l])
443
-- 444 return Popen(*popenargs, **kwargs).wait()
445
446
/usr/lib/python2.6/subprocess.pyc in __init__(self, args, bufsize,
executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd,
env, universal_newlines, startupinfo, creationflags)
593 p2cread, p2cwrite,
594 c2pread, c2pwrite,
-- 595 errread, errwrite)
596
597 # On Windows, you cannot just redirect one or two
handles: You
/usr/lib/python2.6/subprocess.pyc in _execute_child(self, args,
executable, preexec_fn, close_fds, cwd, env, universal_newlines,
startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread,
c2pwrite, errread, errwrite)
1104 os.waitpid(self.pid, 0)
1105 child_exception = pickle.loads(data)
- 1106 raise child_exception
1107
1108
OSError: [Errno 2] No such file or directory
I am using subprocess because I need store the pid. Any suggestions?
Sorry, I was forgot the parameter shell=True.
i.e
In [20]: subprocess.call('DISPLAY=:99
/opt/ooo-dev3/program/soffice.bin',shell=True)
lack of attention mine
thanks in advance,
Gabriel M. Monnerat
Gabriel M. Monnerat
--
http://mail.python.org/mailman/listinfo/python-list
Re: Clarity vs. code reuse/generality
On 2009-07-10 11:50, J. Cliff Dyer wrote: On Fri, 2009-07-10 at 02:57 +, Steven D'Aprano wrote: On Fri, 10 Jul 2009 03:28:04 +0100, Nobody wrote: On Thu, 09 Jul 2009 04:57:15 -0300, Gabriel Genellina wrote: Nobody says you shouldn't check your data. Only that assert is not the right way to do that. assert is not the right way to check your *inputs*. It's a perfectly reasonable way to check data which should be valid, as well as a way to document what variables are supposed to contain. Where are those variables coming from? The distinction really boils down to this: * asserts should never fail. If there is any chance that an assertion might fail outside of test suites, then don't use assert. I'm no expert, but the more I read this thread, and the more I think on it, the more I believe that asserts don't really need to exist outside of test suites. Actually, there is a good argument that one shouldn't use an assert statement in test suites: code can have bugs that only show up under -O so you want to be able to run your test suite under -O. -- Robert Kern I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth. -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
Re: Where does setuptools live?
On Jul 10, 10:26 am, Chris Withers ch...@simplistix.co.uk wrote: Inky 788 wrote: Currently, distutils itself is being actively developed. More info about this here:http://tarekziade.wordpress.com/ My (albeit anonymous) advice is: use distutils. Manually download packages as-needed from PyPI and install manually using standard distutils. No thanks. I'm a big fan of buildout. Making it possible for packages to specify their dependencies is a big win... Read this: http://tarekziade.wordpress.com/2009/07/03/dropping-pep-386-versions-comparison/ So, again, I don't know anything about buildout, and it might be a nice interim solution, but there are some new and exciting developments in distutils coming down the pike, and whatever becomes the standard Python package management system will very likely be based on those new developments. I just hope it all happens sooner than later. :) -- http://mail.python.org/mailman/listinfo/python-list
Nested Classes and Instances
Hello, as an example of what I would like to achieve, think of a street where each house has a door and a sign with a unique (per house) number on it. I tried to model this like this: class House(object): class Door(object): def __init__(self,color): self.color=color class Sign(object): def __init__(self,text): self.text=text def __init__(self, doorcolor,housenumber): self.housenumber=housenumber self.door=House.Door(doorcolor) self.sign=House.Sign(housenumber) house1=House(red,1) house2=House(blue,2) Well, so far, so good. Now, what I'd like to achive is that the text of the sign changes whenever the variable housenumber of the parent-instance changes or that house1.sign.text is a reference/pointer to house1.housenumber Thanks in advance, Manuel -- A hundred men did the rational thing. The sum of those rational choices was called panic. Neal Stephenson -- System of the world http://www.graune.org/GnuPG_pubkey.asc Key fingerprint = 1E44 9CBD DEE4 9E07 5E0A 5828 5476 7E92 2DB4 3C99 -- http://mail.python.org/mailman/listinfo/python-list
Re: problem with subprocess
gabrielmonnerat wrote:
I am using subprocess because I need store the pid. Any suggestions?
Sorry, I was forgot the parameter shell=True.
i.e
In [20]: subprocess.call('DISPLAY=:99
/opt/ooo-dev3/program/soffice.bin',shell=True)
You should avoid using the shell=True parameter. It may result in
security issues and it consumes more resources. Try this:
env = os.environ.copy()
env[DISPLAY] = :99
subprocess.call(['opt/ooo-dev3/program/soffice.bin', env=env)
Christian
--
http://mail.python.org/mailman/listinfo/python-list
Re: can i write a assemly language programs in python
On Fri, Jul 10, 2009 at 5:37 AM, Tim Chasepython.l...@tim.thechases.com wrote: m.reddy prasad reddy wrote: can any one tell me how to write assembly language programs in python...if no is there any other way to write the programs in python Bah, writing assembly language is easy in Python: print(MOV EAX, [EBX]) print(XOR EBX, EBX) Just adjust the strings for your favorite processor architecture and Python will produce the assembly code you want. Now compiling assembly to *machine* code...or calling between Python and assembly...that's another matter. But writing assembly language programs in Python? Easy. ;-) PyASM is a full-featured dynamic assembler written entirely in Python. By dynamic, I mean that it can be used to generate and execute machine code in python at runtime without requiring the generation of object files and linkage. It essentially allow 'inline' assembly in python modules on x86 platforms. PyASM can also generate object files (for windows) like a traditional standalone assembler, although you're probably better off using one of the many freely available assemblers if this is you primary goal. http://members.verizon.net/~olsongt/usersGuide.html -- http://mail.python.org/mailman/listinfo/python-list
Re: gett error message: TypeError: 'int' object is not callable
On Jul 9, 8:22 pm, Paul Rubin http://phr...@nospam.invalid wrote: Nick nleio...@gmail.com writes: text = file.readlines() len = len(text) fields = text[1].split() Is that intended to split the first line of the file? Remember that arrays in python begin at index 0. no the '1st line' is garbled meta data, but thanks man -- http://mail.python.org/mailman/listinfo/python-list
Re: Nested Classes and Instances
Manuel Graune wrote: as an example of what I would like to achieve, think of a street where each house has a door and a sign with a unique (per house) number on it. I tried to model this like this: class House(object): class Door(object): def __init__(self,color): self.color=color class Sign(object): def __init__(self,text): self.text=text def __init__(self, doorcolor,housenumber): self.housenumber=housenumber self.door=House.Door(doorcolor) self.sign=House.Sign(housenumber) house1=House(red,1) house2=House(blue,2) Well, so far, so good. Now, what I'd like to achive is that the text of the sign changes whenever the variable housenumber of the parent-instance changes or that house1.sign.text is a reference/pointer to house1.housenumber Python doesn't support C-style pointers, but you can work around it to some degree: class House(object): ... def __init__(self, housenumber): ... self.housenumber = housenumber ... self.sign = Sign(self) ... class Sign(object): ... def __init__(self, house): ... self.house = house ... @property ... def text(self): return self.house.housenumber ... house = House(42) house.sign.text 42 house.housenumber = 42b house.sign.text '42b' If you are concerned about the tight coupling between House and Sign you can modify Sign to accept a function that gets the housenumber: class House(object): ... def __init__(self, n): self.housenumber = n ... class Sign(object): ... def __init__(self, gettext): ... self._gettext = gettext ... @property ... def text(self): return self._gettext() ... house = House(7) house.sign = Sign(lambda house=house: house.housenumber) house.sign.text 7 Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: tough-to-explain Python
On Jul 7, 1:04 pm, kj no.em...@please.post wrote: I'm having a hard time coming up with a reasonable way to explain certain things to programming novices. : How do I explain to rank beginners (no programming experience at all) why x and y remain unchanged above, but not z? : What do you say to that? I can come up with much mumbling about pointers and stacks and heaps and much hand-waving about the underlying this-and-that, but nothing that sounds even remotely illuminating. Your suggestions would be much appreciated! kj, i don't have too much to add to everyone else's response except to describe how i deal with this. i teach Python courses several times a year and realized long ago that conveying the concept of mutable vs. immutable is a key to getting up-to-speed quickly with Python as well as helping beginners. so, although techically, this is more of an intermediate topic rather than beginner material, i still teach it anyway, with the hopes of producing better Python programmers out of the gate, and hopefully, less frustrated ones. in fact, i dedicated an entire chapter (4) in Core Python Programming just to address this important issue. to top it all off, i end this module in the class by giving 2 quizzes, just to make sure they understood what i just told them. i put the 1st one online, so if you're curious, the PDF is at http://roadkill.com/~wesc/cyberweb/introQuiz.pdf ... the 2nd quiz is harder and involves the discussion of the differences between shallow and deep copies. so yes, not very beginner- ish stuff, hence the reason why i (re)named my course Intro +Intermediate Python. finally, rather than the paper tag or alex's hotel statue analogy, i just say that variables are like Post-Itreg; or sticky notes on objects. i can tag objects anytime, tag objects more than once, remove tags, or switch them to another object, etc. just my $0.02, -- wesley - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Core Python Programming, Prentice Hall, (c)2007,2001 Python Fundamentals, Prentice Hall, (c)2009 http://corepython.com wesley.j.chun :: wescpy-at-gmail.com python training and technical consulting cyberweb.consulting : silicon valley, ca http://cyberwebconsulting.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Running a script to build docs from setup.py
On Fri, 10 Jul 2009 11:06:34 +1000 Ben Finney ben+pyt...@benfinney.id.au wrote: Tony Houghton h...@realh.co.uk writes: I've looked through the manual but I can't find any hooks in distutils for generating files at install time other than extension modules and .pyc files. Should I just run the script from somewhere in my setup.py before calling distutils' setup function? Indirectly related: Ian Bicking's article on using Python's ‘setup.py’ as a ‘Makefile’ replacement: URL:http://blog.ianbicking.org/pythons-makefile.html Thanks, but I don't think that adds much to the distutils manual. If one is writing a ‘setup.py’ anyway, I think it makes sense to use that as the build program for the whole project if possible. Good hunting! Yes. Really I only want to write a setup.py because it makes it easier to make a debian package, but the more of the installation that's done by setup.py the better I suppose, then other people might find it useful. -- TH * http://www.realh.co.uk -- http://mail.python.org/mailman/listinfo/python-list
python make dies :libtk8.5.so: cannot open shared object file: No such file or directory
Trying to build python-2.6.2 ./configure --prefix=/usr/local --exec-prefix=/usr/local LDFLAGS=-L/usr/local (runs through happily, had to make some libs local) make runs most of the way until. building '_tkinter' extension gcc -pthread -fPIC -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DWITH_APPINIT=1 -I/usr/X11R6/include -I. -I/tmp/meld/Python-2.6.2/./Include -I. -IInclude -I./Include -I/usr/local/include -I/tmp/meld/Python-2.6.2/Include -I/tmp/meld/Python-2.6.2 -c /tmp/meld/Python-2.6.2/Modules/_tkinter.c -o build/temp.linux-i686-2.6/tmp/meld/Python-2.6.2/Modules/_tkinter.o gcc -pthread -fPIC -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DWITH_APPINIT=1 -I/usr/X11R6/include -I. -I/tmp/meld/Python-2.6.2/./Include -I. -IInclude -I./Include -I/usr/local/include -I/tmp/meld/Python-2.6.2/Include -I/tmp/meld/Python-2.6.2 -c /tmp/meld/Python-2.6.2/Modules/tkappinit.c -o build/temp.linux-i686-2.6/tmp/meld/Python-2.6.2/Modules/tkappinit.o gcc -pthread -shared build/temp.linux-i686-2.6/tmp/meld/Python-2.6.2/Modules/_tkinter.o build/temp.linux-i686-2.6/tmp/meld/Python-2.6.2/Modules/tkappinit.o -L/usr/X11R6/lib64 -L/usr/X11R6/lib -L/usr/local/lib -ltk8.5 -ltcl8.5 -lX11 -o build/lib.linux-i686-2.6/_tkinter.so *** WARNING: renaming _tkinter since importing it failed: libtk8.5.so: cannot open shared object file: No such file or directory Failed to find the necessary bits to build these modules: _sqlite3 bsddb185 sunaudiodev To find the necessary bits, look in setup.py in detect_modules() for the module's name. Failed to build these modules: _tkinter running build_scripts # cd /usr/local/lib # ls -la | grep libtk8.5.so -r-xr-xr-x 1 root root 1112606 Jul 10 13:28 libtk8.5.so Am I missing something, it's there? Regards, Tony Lay UNIX Administration 407-306-6559 Lockheed Martin - EBS One Company, One Team BEGIN:VCARD VERSION:2.1 N:Lay;Anthony (Tony) FN:Anthony (Tony) Lay (tony@lmco.com) ORG:Lockheed Martin TITLE:Computer Network Supprt SrSpec TEL;WORK;VOICE:407/306-6559 TEL;PAGER;VOICE:321/297-0122 ADR;WORK:;;12506 Lake Underhill Rd;Orlando;FL;32825;US LABEL;WORK;ENCODING=QUOTED-PRINTABLE:12506 Lake Underhill Rd=0D=0AOrlando, FL 32825=0D=0AUS EMAIL;PREF;INTERNET:tony@lmco.com REV:20090424T165829Z END:VCARD smime.p7s Description: S/MIME cryptographic signature -- http://mail.python.org/mailman/listinfo/python-list
Re: language analysis to enforce code standards
2009/7/10 Peter Otten __pete...@web.de: Don't be a fool. Have someone other than the author read the comment. That's the winning answer as far as I'm concerned. Automated tools are good for picking up some types of accidental mistakes, but for checking that comments are meaningful (and variable names, for that matter) you can't do without peer review. Think about it. What's the purpose of enforcing standards. Just a tick in some assurance box to say we meet these standards? Ot to ensure something about the product quality? No automated tool -- not for a while yet, anyway -- is going to pick up comments such as: # increment x x += 1 or # You are not expected to understand this. The former is the sort of thing that any programmer might produce when against a deadline and forced to comment their code. The latter is a classic from a programming guru of old. An automatic checker that just checks that the comment exists without understanding its contents simply is not adding value but is rather petty bureaucracy that will annoy the programmers. -- Tim Rowe -- http://mail.python.org/mailman/listinfo/python-list
Re: Automate rsync w/ authentication
On Fri, Jul 10, 2009 at 9:13 AM, Bryanbryanv...@gmail.com wrote: I am trying to automate rsync to backup server A from server B. I have set up a private/public key between the two servers so I don't have to enter a password when using rsync. Running rsync manually with the following command works fine: rsync -av --dry-run -e /usr/bin/ssh -i /home/bry/keys/brybackup.key r...@10.0.45.67:/home/bry/jquery.lookup /home/bry/tmp But when I try to do it with python, the subprocess simply returns the ssh -h output on stderr like I am passing some invalid syntax. What is wrong in my translation of rsync's -e command from shell to pythyon? #! /usr/bin/python from subprocess import Popen, PIPE rsyncExec = '/usr/bin/ssh' source = 'r...@10.0.45.67:/home/bry/jquery.lookup' dest = '/home/bry/tmp' rshArg = '-e /usr/bin/ssh -i /home/bry/keys/brybackup.key' args = [rsyncExec, '-a', '-v', '--dry-run', rshArg, source, dest] Like many problems involving the subprocess module, I think you've tokenized the arguments incorrectly. Try: rshArg = '/usr/bin/ssh -i /home/bry/keys/brybackup.key' args = [rsyncExec, '-av', '--dry-run', '-e', rshArg, source, dest] Note that the -e switch and its operand are separate arguments for the purposes of POSIX shell tokenization. Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: tough-to-explain Python
Steven D'Aprano wrote: On Fri, 10 Jul 2009 08:28:29 -0700, Scott David Daniels wrote: Steven D'Aprano wrote: Even *soup stock* fits the same profile as what Hendrik claims is almost unique to programming. On its own, soup stock is totally useless. But you make it, now, so you can you feed it into something else later on. Or instant coffee. I think I'll avoid coming to your house for a cup of coffee. :-) I meant the instant coffee powder is prepared in advance. It's useless on it's own, but later on you feed it into boiling water, add sugar and milk, and it's slightly less useless. I know, but the image of even a _great_ soup stock with instant coffee poured in, both appalled me and made me giggle. So, I thought I'd share. --Scott David Daniels scott.dani...@acm.org -- http://mail.python.org/mailman/listinfo/python-list
Re: Clarity vs. code reuse/generality
On Fri, 2009-07-10 at 11:57 -0500, Robert Kern wrote: On 2009-07-10 11:50, J. Cliff Dyer wrote: On Fri, 2009-07-10 at 02:57 +, Steven D'Aprano wrote: On Fri, 10 Jul 2009 03:28:04 +0100, Nobody wrote: On Thu, 09 Jul 2009 04:57:15 -0300, Gabriel Genellina wrote: Nobody says you shouldn't check your data. Only that assert is not the right way to do that. assert is not the right way to check your *inputs*. It's a perfectly reasonable way to check data which should be valid, as well as a way to document what variables are supposed to contain. Where are those variables coming from? The distinction really boils down to this: * asserts should never fail. If there is any chance that an assertion might fail outside of test suites, then don't use assert. I'm no expert, but the more I read this thread, and the more I think on it, the more I believe that asserts don't really need to exist outside of test suites. Actually, there is a good argument that one shouldn't use an assert statement in test suites: code can have bugs that only show up under -O so you want to be able to run your test suite under -O. That's an interesting point. Presumably TestCase.assert_() doesn't suffer from this defect? Otherwise the entire unittest suite is essentially broken by your argument. I suppose I should have said one should only raise AssertionErrors in test suites. Practically speaking, that's what a test suite is: The place where you assert what the code does. -- http://mail.python.org/mailman/listinfo/python-list
Re: gett error message: TypeError: 'int' object is not callable
On Thu, 2009-07-09 at 13:53 +, Friðrik Már Jónsson wrote: Look at: len = len(text) You're overriding `len` (a built-in method), with an integer (`len(text)`). You then call: for i in range(len(fields)): But `len` is no longer a callable, but merely an integer. Regards, Friðrik Már P.S. While this is a fairly obvious problem it's usually a good idea to post working code and a traceback when requesting help. While we're on the subject of good question posting form: The body of your post should contain all relevant information. Please don't make readers look back at the subject heading for the statement of the problem. Duplicating the statement of the problem in the subject and the body is ok, but it really ought to be in the body. -- http://mail.python.org/mailman/listinfo/python-list
ANN: Leo 4.6 rc1 released
Leo 4.6 rc1 is now available at: http://sourceforge.net/project/showfiles.php?group_id=3458package_id=29106 Leo is a text editor, data organizer, project manager and much more. See: http://webpages.charter.net/edreamleo/intro.html The highlights of Leo 4.6: -- - Cached external files *greatly* reduces the time to load .leo files. - Leo now features a modern Qt interface by default. Leo's legacy Tk interface can also be used. - New --config, --file and --gui command-line options. - Leo tests syntax of .py files when saving them. - Leo can now open any kind of file into @edit nodes. - @auto-rst nodes allow easy editing of reStructuredText files. - Properties of commanders, positions and nodes simplify programming. - Improved Leo's unit testing framework. - Leo now requires Python 2.5 or later. - Dozens of small improvements and bug fixes. Links: -- Leo: http://webpages.charter.net/edreamleo/front.html Forum:http://groups.google.com/group/leo-editor Download: http://sourceforge.net/project/showfiles.php?group_id=3458 Bzr: http://code.launchpad.net/leo-editor/ Quotes: http://webpages.charter.net/edreamleo/testimonials.html Edward K. Ream email: edream...@yahoo.com Leo: http://webpages.charter.net/edreamleo/front.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Clarity vs. code reuse/generality
On 2009-07-10 13:56, J. Cliff Dyer wrote: On Fri, 2009-07-10 at 11:57 -0500, Robert Kern wrote: On 2009-07-10 11:50, J. Cliff Dyer wrote: On Fri, 2009-07-10 at 02:57 +, Steven D'Aprano wrote: On Fri, 10 Jul 2009 03:28:04 +0100, Nobody wrote: On Thu, 09 Jul 2009 04:57:15 -0300, Gabriel Genellina wrote: Nobody says you shouldn't check your data. Only that assert is not the right way to do that. assert is not the right way to check your *inputs*. It's a perfectly reasonable way to check data which should be valid, as well as a way to document what variables are supposed to contain. Where are those variables coming from? The distinction really boils down to this: * asserts should never fail. If there is any chance that an assertion might fail outside of test suites, then don't use assert. I'm no expert, but the more I read this thread, and the more I think on it, the more I believe that asserts don't really need to exist outside of test suites. Actually, there is a good argument that one shouldn't use an assert statement in test suites: code can have bugs that only show up under -O so you want to be able to run your test suite under -O. That's an interesting point. Presumably TestCase.assert_() doesn't suffer from this defect? Otherwise the entire unittest suite is essentially broken by your argument. It explicitly raises AssertionErrors. It does not use the assert statement. I suppose I should have said one should only raise AssertionErrors in test suites. Practically speaking, that's what a test suite is: The place where you assert what the code does. Yup. -- Robert Kern I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth. -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
Re: Colour of output text
On Fri, Jul 10, 2009 at 2:23 AM,
garabik-news-2005...@kassiopeia.juls.savba.sk wrote:
Tim Harig user...@ilthio.net wrote:
On 2009-07-09, Alex Rosslyn black.line...@gmail.com wrote:
I would like to learn a way of changing the colour of a particular
part of the output text. I've tried the following
On Unix operating systems this would be done through the curses interface:
http://docs.python.org/library/curses.html
Or using ANSI colour codes:
colours = {
snip
'beep' : \007,
Sound is a color? Maybe if you have synaesthesia...
Cheers,
Chris
--
http://blog.rebertia.com
--
http://mail.python.org/mailman/listinfo/python-list
Why not enforce four space indentations in version 3.x?
I believe Guido himself has said that all indentions should be four spaces - no tabs. Since backward compatibility is being thrown away anyway, why not enforce the four space rule? At least that way, when I get python code from somebody else, I would know what I am looking at, without having to do a hex dump, or something. -- http://mail.python.org/mailman/listinfo/python-list
Re: AP -- MeAmI.org Paces Google
François Grondin wrote: David Bernier david...@videotron.ca a �crit dans le message de news: h36ki102...@news5.newsguy.com... Musatov wrote: On Jul 9, 7:54 pm, David Bernier david...@videotron.ca wrote: Musatov wrote: Los Angeles (AP) --MeAmI.org now has users in 50 countries following its adopted use in Pakistan. The search engine has grown in popularity 10,000 fold following its Beta test launch three months ago in April, 2009. Supporters of the site claim it is better than rival Google upon which platform it is based. Controversy arose after MeAmI.org search code allowed users to search other users Google results with no advertising. It is truly an innovative thing we are doing, said Founder and CEO, Martin Musatov. Letting users search the results of other Google users immediately results in a level of accuracy and relevance above and beyond Google. Google changed their API following the launch or MeAmI.org and explored the possibility of blocking site access from MeAmI.org to Google search results but was unable to do so. Critics of MeAmI.org say what it is doing is tantamount to intellectual theft. When asked about this topper Musatov exclaimed, The Internet was made for people, not companies. An analyst at Goldman Sachs says, requesting to remain anonymous, MeAmI.org has a strong presence in promoting itself as a vehicle for global activism and to tell you the truth, this makes it much more likely an acquisition target than potential intellectual property violator. Google could not be reached for comment. Mr. Musatov, do you know who originally wrote the article above? Thank you. David Bernier- Hide quoted text - - Show quoted text - Yes. Mr. Musatov, do you know the name of the person who originally wrote the article above? Thank you. David Bernier Maybe Mr. Musatov should answer the following questions instead : 1. Did you write the article above? 2. If not, who did? And I don't want AP as the answer, but the name of the journalist. David, don't take it bad, but he answered your question with an accurate answer (yes), You gave him the opportunity to avoid the real answer and he took it. Based on Musatov's strange behavior and logic, don't expect more from him. Ask anyone else the same question and you'd get a real answer. BTW, my guess for question 2 would be the Masked Logician, Floetry, scriber77, or Professor X. Francois 1. Yes. -- http://mail.python.org/mailman/listinfo/python-list
