Jython Beta 3 Released
When I released Beta 2 this Saturday, I said it would be the last beta unless a severe bug was found. Well, a severe bug was found. Under certain circumstances Jython Beta 2 would not start on Windows. Otmar Humbel has fixed it, and we've released Beta 3 with the fix here: http://downloads.sourceforge.net/jython/jython_installer-2.5b3.jar See http://www.jython.org/Project/installation.html for installation instructions. This is a beta release so be careful. -Frank -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
Re: Problem with os.chdir()
venutaurus...@gmail.com wrote: Hello all, I am writing a python script which has to access deep paths then supported normally by the Windows OS (255). So I am appending \ \?\ to do so. But when I use the path in the above fashion with os.chdir() it is unable to recognize my folder and throwing an error: Traceback (most recent call last): File C:\JPDump\test.py, line 31, in module renameStubs(file) File C:\JPDump\test.py, line 15, in renameStubs os.chdir (path) WindowsError: [Error 123] The filename, directory name, or volume label syntax is incorrect: '\\?\\C:\\TestDataSet\ \Many_Files_1_1KB_FIles\\001_0009_1000 FILES\\' The value of my path variable is \?\C:\TestDataSet\Many_Files_1_1KB_FIles\001_0009_1000 FILES\ There need to be two backslashes at the beginning: \\?\C:\TEST.FILES\ Note the double backslash before the question mark. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: A Dangling Tk Entry
On Mon, 09 Mar 2009 21:14:51 -0700, W. eWatson wrote:
def Set_Enter_Data(self):
sdict = {}
sdict[ ok ] = False
sdict[ anumber ] = self.anumber
dialog = Enter_Data_Dialog( self.master, sdict ) ---
returning
That's not a call to the `body()` method so that ``return`` is
irrelevant here. Here an instance of `Enter_Data_Dialog` is created.
No ``return`` involved.
BTW if this is really just a dialog to enter a number, the functions
`askinteger()` or `askfloat()` from the `tkSimpleDialog` module can be
used.
What you are seeing here as an example, is a paired down version of the
2000 line program to focus on the particular problem at hand. The full
code uses up to 20 variable of various types, via the dialog object. It
uses them successfully to get the values the user has entered. How can
it be irrelevant if it works?
The ``return`` in `body()` has nothing to do with the source line you
marked.
The author thought this was the way to do it.
And he thought wrong because his `body()` method returns `None`. That
works but not the way it is intended.
It's not my invention. It's no fluke. He does the same thing in
another dialog that brings back about 6 values.
def body(self,master):
self.title(Box Settings)
print body from BSD
...
frame_delay = Entry( master,
textvariable=self.frame_delay_var,
width=10 ).grid( row=2, column=1, sticky=W )
...
Entry( master,
textvariable=self.untrigger_threshold_var, width=10
).grid( row=4, column=1, sticky=W )
self.untrigger_threshold_var.set( %d %
self.sdict[untrigger_threshold] )
return frame_delay
Then he did it consequently wrong. `frame_delay` is always `None` here
so the ``return`` is useless.
You asked what this code means and now you don't like the answer that
it's somewhat useless code!?
Ciao,
Marc 'BlackJack' Rintsch
--
http://mail.python.org/mailman/listinfo/python-list
Re: Ban Xah Lee
Anybody else notice that xah lee is eel hax spelt backwards? -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem--Extending the behavior of an upstream package
On Mar 10, 9:33 pm, a...@pythoncraft.com (Aahz) wrote:
In article
60848752-2c3f-4512-bf61-0bc11c919...@i20g2000prf.googlegroups.com,
Carl Banks pavlovevide...@gmail.com wrote:
The problem comes when a different part of the upstream package also
subclasses or creates a Box. When an upstream function creates a box,
it creates an upstream.packaging.Box instead of a
mine.custom_packaging.Box, but I'd want it to do the latter.
The only clean way I'm aware of is to pass in an instance and use
instance.__class__ to create new instances. Did you come up with
another idea?
Ok, so after lots of false starts and muttering, and much mindbending
to get my head around the import dynamics, I came up with this simple
(not straightforward) recipe, which does not require an import hook,
but has one major drawback (that I can live with). I defined this
function:
def adapt(base_full_mod_name):
mp = base_full_mod_name.split('.')
if len(mp) 2:
raise ValueError('can only adapt packaged modules')
adapt_full_mod_name = '.'.join([custom] + mp[1:])
keepref_full_mod_name = '.'.join([_upstream] + mp[1:])
adapt_mod_name = mp[-1]
parent_full_mod_name = '.'.join(mp[:-1])
try:
mod = __import__(adapt_full_mod_name,globals(),locals(),
('*',))
except ImportError:
pass
else:
sys.modules[keepref_full_mod_name] = sys.modules
[base_full_mod_name]
sys.modules[base_full_mod_name] = mod
setattr(sys.modules[parent_full_mod_name],adapt_mod_name,mod)
Most of the modules in package upstream have a little bit of
boilerplate at the very end that looks something like this:
from . import adaptation
adaptation.adapt(__name__)
Believe it or not, this causes whoever imports the module to actually
receive a different module. It exploits the fact that the semantics
of __import__ are, for the lack of a better word, retarded. If you
write from upstream import staging, staging would end up bound to
the module custom.stating (if custom.staging exists).
This allows you to subclass upsteam.staging.Box naturally, and anyone
who tries to use upstream.staging.Box will actually be using
custom.staging.Box. (Actually not quite true, a user in the same
module would still be using Box, but that's easily work-around-able.)
The major drawback is that from upstream.staging import Box will
fail. It will import upstream.staging.Box, not custom.stating.Box if
it's the first time upstream.stating is imported. I can live with it
since I expect the modules to be carefully imported in order before
anyone uses their contents.
A minor drawback is it only works for modules in a package, no
biggie. It probably crashes and burns in circular import situations,
and there's almost certainly some other pitfalls.
It's probably too magical for most people, but as I said I can
tolerate a lot of magic. I think it's ok because all adaptible
modules have boilerplate at the end cluing a user that some other
behavior might be tacked onto this module. That was the key sticking
point for me, I could have used an import hook, but I REALLY didn't
want a user to see import upstream.staging and not have any clue why
they were importing custom.staging.
Carl Banks
--
http://mail.python.org/mailman/listinfo/python-list
Re: Ban Xah Lee
Craig Allen wrote: There you go: a 30-second psychological diagnosis by an electrical engineer based entirely on Usenet postings. It doesn't get much more worthless than that... -- Grant rolf but interesting post nonetheless. I have been really somewhat fascinated by AS since I heard of it about a decade ago. There are many among us, with interesting ideas, occasionally savant level insight into certain abstractions, which often they can not communicate but which lie there for those that can communicate or come to understand nonetheless. having said that, none of this forgives rudeness or implies people have to tolarate it due to a person's condition, or even due to trying to help them achieve their potential (and thus get something productive out of it ourselves as well)... that is, if you have these communications problems you have to realize it, thank god you are functional, and just that alone will help you communicate. eeep! kt ps. when the hell do I get an eponymous banning thread?! I have been flaming this damn group for 13 years and no recognition!! k -- http://mail.python.org/mailman/listinfo/python-list
urllib2.URLError: urlopen error unknown url type: http
i use python2.6
File C:\PROGRA~1\Python26\lib\urllib2.py, line 383, in open
response = self._open(req, data)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 401, in _open
'_open', req)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 361, in
_call_chain
result = func(*args)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 690, in lambda
meth(r, proxy, type))
File C:\PROGRA~1\Python26\lib\urllib2.py, line 713, in proxy_open
return self.parent.open(req)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 383, in open
response = self._open(req, data)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 406, in _open
'unknown_open', req)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 361, in
_call_chain
result = func(*args)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 1163, in
unknown_open
raise URLError('unknown url type: %s' % type)
urllib2.URLError: urlopen error unknown url type: http
--
http://mail.python.org/mailman/listinfo/python-list
Re: Is python worth learning as a second language?
I'm a Testing Engineer ,i don't know any language at all before learning py3k ,and for Testing job! -- http://mail.python.org/mailman/listinfo/python-list
Problem with threading: can't start new thread
I am doing stress test with python using threading, I have encountered the can't start new thread problem when running the script. The system is Linux, python version 2.4 Traceback (most recent call last): File ./imap_test.py, line 38, in ? current.start() File /usr/lib/python2.4/threading.py, line 416, in start _start_new_thread(self.__bootstrap, ()) thread.error: can't start new thread Part of my testing scripts(python) is as followed: #!/usr/bin/python import const; import imap_pattern; import os import re import time import sys from threading import Thread import logging Userno_Max = 1000 class client(Thread): def __init__ (self,ID,type,username): Thread.__init__(self) self.username = username self.type = type self.ID = ID def run(self): print self.ID myTest = imap_pattern.imap_pattern(self.ID) myTest.run_pattern(self.type,self.username) if __name__ == '__main__': print time.ctime() Users = int(sys.argv[1]) Period = float(sys.argv[2]) id = 1 for host in range(0,1000): username = %...@%s %(const.Username_Prefix, id % Userno_Max, const.Domain) current = client(id,1,username) current.start() id += 1 -- http://mail.python.org/mailman/listinfo/python-list
Re: Ban Xah Lee
Kenneth Tilton ke...ail.comwrote: ps. when the hell do I get an eponymous banning thread?! I have been flaming this damn group for 13 years and no recognition!! k Well you are obviously not trying hard enough, so you have nobody but yourself to blame if you get pipped at the post after 13 years: It would help if you cross posted gratuitously, flaming the wrong group in response to random blog comments that you read elsewhere. Oh yes, I almost forgot - you also have to have some grotty website that is full of autogenerated rubbish that you keep posting links to as if it were the answer to life the universe, and everything. So having manifestly failed to follow the accepted recipe for getting yourself banned - why are you surprised? - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
Re: urllib2.URLError: urlopen error unknown url type: http
On Tue, Mar 10, 2009 at 11:34 PM, Coonay fla...@gmail.com wrote:
i use python2.6
File C:\PROGRA~1\Python26\lib\urllib2.py, line 383, in open
response = self._open(req, data)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 401, in _open
'_open', req)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 361, in
_call_chain
result = func(*args)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 690, in lambda
meth(r, proxy, type))
File C:\PROGRA~1\Python26\lib\urllib2.py, line 713, in proxy_open
return self.parent.open(req)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 383, in open
response = self._open(req, data)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 406, in _open
'unknown_open', req)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 361, in
_call_chain
result = func(*args)
File C:\PROGRA~1\Python26\lib\urllib2.py, line 1163, in
unknown_open
raise URLError('unknown url type: %s' % type)
urllib2.URLError: urlopen error unknown url type: http
A. Please include the *entire* traceback, in the future
B. Please include a snippet of the code you're using, in the future
C. A bit less curt of a missive would also be appreciated
That all said, judging by the error message, it appears that the URL
you're trying to open has a double-quote () as its first character,
which is obviously not permissible.
I can't be completely sure however, since you neglected to include the
entire traceback or any of your actual code.
Cheers,
Chris
--
I have a blog:
http://blog.rebertia.com
--
http://mail.python.org/mailman/listinfo/python-list
WSE 3 with Python (Newbie)
Hi, I am trying to post a python HTTP request to a web service that implements using Web Service Enhancements 3.0. I have WSE3.0 installed on the client and the server and I have looked over a few examples of how the SOAP header should look like for WSE authentication, I have included the following: soap:Header wsa:ActionACTION ADDRESS/wsa:Action wsa:MessageIDMESSAGE ID/wsa:MessageID wsa:ToASMX ADDRESS/wsa:To wsse:Security wsse:UsernameToken wsse:UsernameUSERNAME/wsse:Username wsse:PasswordPASSWORD/wsse:Password /wsse:UsernameToken wsu:Timestamp id=Timestamp-a4585876-db02-44a6-a2f7-2bc6f3472e47/ wsu:Created2009-02-14T16:14:00Z/wsu:Created wsu:Expires2010-01-01T12:00:00Z/wsu:Expires /wsse:Security soap:Header I am not getting a valid response back. Any ideas what I may be doing wrong? Kind Regards Shane Bignell Spotlight Interactive Planning for Financial Excellence A member of the IRESS group ( 031 203 7620FAX 086 514 6546 *: sha...@spotlight.co.za mailto:sha...@spotlight.co.za | Website: www.spotlight.co.za http://www.spotlight.co.za Email disclaimer This email and any accompanying attachments may contain confidential and proprietary information. This information is private and protected by law and, accordingly, if you are not the intended recipient, you are requested to delete this entire communication immediately and are notified that any disclosure, copying or distribution of or taking any action based on this information is prohibited. Emails cannot be guaranteed to be secure or free of errors or viruses. The sender does not accept any liability or responsibility for any interception, corruption, destruction, loss, late arrival or incompleteness of or tampering or interference with any of the information contained in this email or for its incorrect delivery or non-delivery for whatsoever reason or for its effect on any electronic device of the recipient. If verification of this email or any attachment is required, please request a hard-copy version. Click here to read full email disclaimer http://www.spotlight.co.za/EmailDisclaimer.html image001.jpg-- http://mail.python.org/mailman/listinfo/python-list
Re: python code to fortran 77's
On Mar 9, 9:55 am, John Machin sjmac...@lexicon.net wrote:
On Mar 9, 12:09 pm, Larry larry.cebu...@gmail.com wrote:
Friends,
I need to read a binary file using a Fortran 77 code to integrate with
a legacy code It looked very much complicated to me for I have no
knowledge in Fortran.
I could read the file with ease using Python, as shown in the
following.
###
from numpy import* #Importing modules
from struct import unpack
f = open('bindata', 'rb') #Opening binary file for reading
A = zeros(20) #Initializing empty array
for i in xrange(20):
data = unpack('f', f.read(4)) # Unpacking 32-bit data,
C-float
A[i]+=data
Sample output:
A
array([ 239., 309., 298., 280., 286., 250., 190., 200., 226.,
.
.
.
214., 243., 439., 565., 564., 546., 142., 87.,
118.])
##
As you can see, data values are 4-byte long (float) and byte order is
little endian (Intel machine).
I intend to post this to a fortran users group but if you know, kindly
give a piece of advice.
Thanks to all those who will help.
Have you tried google(f77 read binary)?
Not much help with your f77 problem, but you might like to see a less
verbose way of doing it in Python:
from struct import unpack
f = open('bindata', 'rb')
a_tuple = unpack('20f', f.read(80))
Cheers,
John
Thanks. Gonna try
--
http://mail.python.org/mailman/listinfo/python-list
Re: Problem with threading: can't start new thread
sufrank wrote: I am doing stress test with python using threading, I have encountered the can't start new thread problem when running the script. The system is Linux, python version 2.4 http://stackoverflow.com/questions/344203/maximum-number-of-threads-per-process-in-linux Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Ban Xah Lee
There you go: a 30-second psychological diagnosis by an electrical engineer based entirely on Usenet postings. It doesn't get much more worthless than that... -- Grant rolf but interesting post nonetheless. I have been really somewhat fascinated by AS since I heard of it about a decade ago. There are many among us, with interesting ideas, occasionally savant level insight into certain abstractions, which often they can not communicate but which lie there for those that can communicate or come to understand nonetheless. having said that, none of this forgives rudeness or implies people have to tolarate it due to a person's condition, or even due to trying to help them achieve their potential (and thus get something productive out of it ourselves as well)... that is, if you have these communications problems you have to realize it, thank god you are functional, and just that alone will help you communicate. me, also IANAP, also working from usenet and an asperger's book I read (and google)... -- http://mail.python.org/mailman/listinfo/python-list
Re: Determining from which web page a cgi script is invoked?
On Mar 10, 7:15 pm, cm carlos.m...@atisa.es wrote: davidgo...@davidgould.com escribió: Given a webpage test.html that has a form with a cgi script, how can you determine inside the cgi script the name of the webpage that invoked the script? I have many different html pages that use a common cgi script for form processing and want to determine the name of the webpage. quickdirty: Add a hidden form var with the page/form name Yes, I had considered this. Is there any way to quickly automate the setting of this var to match the html page that contains it? -- http://mail.python.org/mailman/listinfo/python-list
Re: Determining from which web page a cgi script is invoked?
On Mar 10, 7:15 pm, cm carlos.m...@atisa.es wrote: davidgo...@davidgould.com escribió: Given a webpage test.html that has a form with a cgi script, how can you determine inside the cgi script the name of the webpage that invoked the script? I have many different html pages that use a common cgi script for form processing and want to determine the name of the webpage. quickdirty: Add a hidden form var with the page/form name Yes, I had considered this. Is there any way to quickly automate the setting of this var to match the html page that contains it? -- http://mail.python.org/mailman/listinfo/python-list
elixir vs. storm
Hi, Anyone here compared elixir with storm? Both are sqlite declarative wrappers (as far as I understood) and both seem to hide the (unnecessary for what I want) SQL/data layer under pythonic wrappers. I'm not trying to start a flamewar here (but I wanted to know if one is more mature than the other, more pythonic, easier to use or whatever ... Also, are there any other alternatives for easily working with sqlite in python? Thanks, Dan -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
On Mar 11, 11:08 am, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: Hello all, I am writing a python script which has to access deep paths then supported normally by the Windows OS (255). So I am appending \ \?\ to do so. But when I use the path in the above fashion with os.chdir() it is unable to recognize my folder and throwing an error: Traceback (most recent call last): File C:\JPDump\test.py, line 31, in module renameStubs(file) File C:\JPDump\test.py, line 15, in renameStubs os.chdir (path) WindowsError: [Error 123] The filename, directory name, or volume label syntax is incorrect: '\\?\\C:\\TestDataSet\ \Many_Files_1_1KB_FIles\\001_0009_1000 FILES\\' The value of my path variable is \?\C:\TestDataSet\Many_Files_1_1KB_FIles\001_0009_1000 FILES\ There need to be two backslashes at the beginning: \\?\C:\TEST.FILES\ Note the double backslash before the question mark. TJG I've another situation where os.chdir() function failed. Please find the traceback pasted below: Traceback (most recent call last): File C:\JPDump\test.py, line 29, in module renameStubs(file) File C:\JPDump\test.py, line 12, in renameStubs os.chdir (path) WindowsError: [Error 206] The filename or extension is too long: '\\?\ \C:\\TestDataSet\\DeepPaths\\DeepPathLevel01\\DeepPathLevel02\ \DeepPathLevel03\\DeepPathLevel04\\DeepPathLevel05\\DeepPathLevel06\ \DeepPathLevel07\\DeepPathLevel08\\DeepPathLevel09\\DeepPathLevel10\ \DeepPathLevel11\\DeepPathLevel12\\DeepPathLevel13\\DeepPathLevel14\ \DeepPathLevel15\\DeepPathLevel16\\' Thanks in advance, Venu Madhav. -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
venutaurus...@gmail.com wrote: On Mar 11, 11:08 am, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: Hello all, I am writing a python script which has to access deep paths then supported normally by the Windows OS (255). So I am appending \ \?\ to do so. But when I use the path in the above fashion with os.chdir() it is unable to recognize my folder and throwing an error: Traceback (most recent call last): File C:\JPDump\test.py, line 31, in module renameStubs(file) File C:\JPDump\test.py, line 15, in renameStubs os.chdir (path) WindowsError: [Error 123] The filename, directory name, or volume label syntax is incorrect: '\\?\\C:\\TestDataSet\ \Many_Files_1_1KB_FIles\\001_0009_1000 FILES\\' The value of my path variable is \?\C:\TestDataSet\Many_Files_1_1KB_FIles\001_0009_1000 FILES\ There need to be two backslashes at the beginning: \\?\C:\TEST.FILES\ Note the double backslash before the question mark. TJG I've another situation where os.chdir() function failed. Please find the traceback pasted below: Traceback (most recent call last): File C:\JPDump\test.py, line 29, in module renameStubs(file) File C:\JPDump\test.py, line 12, in renameStubs os.chdir (path) WindowsError: [Error 206] The filename or extension is too long: '\\?\ \C:\\TestDataSet\\DeepPaths\\DeepPathLevel01\\DeepPathLevel02\ \DeepPathLevel03\\DeepPathLevel04\\DeepPathLevel05\\DeepPathLevel06\ \DeepPathLevel07\\DeepPathLevel08\\DeepPathLevel09\\DeepPathLevel10\ \DeepPathLevel11\\DeepPathLevel12\\DeepPathLevel13\\DeepPathLevel14\ \DeepPathLevel15\\DeepPathLevel16\\' Try it as a unicode string: os.chdir (ur\\?\c:\test...\deep...) TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
On Mar 11, 5:02 pm, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: On Mar 11, 11:08 am, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: Hello all, I am writing a python script which has to access deep paths then supported normally by the Windows OS (255). So I am appending \ \?\ to do so. But when I use the path in the above fashion with os.chdir() it is unable to recognize my folder and throwing an error: Traceback (most recent call last): File C:\JPDump\test.py, line 31, in module renameStubs(file) File C:\JPDump\test.py, line 15, in renameStubs os.chdir (path) WindowsError: [Error 123] The filename, directory name, or volume label syntax is incorrect: '\\?\\C:\\TestDataSet\ \Many_Files_1_1KB_FIles\\001_0009_1000 FILES\\' The value of my path variable is \?\C:\TestDataSet\Many_Files_1_1KB_FIles\001_0009_1000 FILES\ There need to be two backslashes at the beginning: \\?\C:\TEST.FILES\ Note the double backslash before the question mark. TJG I've another situation where os.chdir() function failed. Please find the traceback pasted below: Traceback (most recent call last): File C:\JPDump\test.py, line 29, in module renameStubs(file) File C:\JPDump\test.py, line 12, in renameStubs os.chdir (path) WindowsError: [Error 206] The filename or extension is too long: '\\?\ \C:\\TestDataSet\\DeepPaths\\DeepPathLevel01\\DeepPathLevel02\ \DeepPathLevel03\\DeepPathLevel04\\DeepPathLevel05\\DeepPathLevel06\ \DeepPathLevel07\\DeepPathLevel08\\DeepPathLevel09\\DeepPathLevel10\ \DeepPathLevel11\\DeepPathLevel12\\DeepPathLevel13\\DeepPathLevel14\ \DeepPathLevel15\\DeepPathLevel16\\' Try it as a unicode string: os.chdir (ur\\?\c:\test...\deep...) TJG Sorry.. even that failed: Traceback (most recent call last): File C:\JPDump\test.py, line 29, in module renameStubs(file) File C:\JPDump\test.py, line 12, in renameStubs os.chdir (path) WindowsError: [Error 206] The filename or extension is too long: u'\\\ \?\\C:TestDataSet\\DeepPaths\\DeepPathLevel01\\DeepPathLevel02\ \DeepPathLevel03\\DeepPathLevel04\\DeepPathLevel05\\DeepPathLevel06\ \DeepPathLevel07\\DeepPathLevel08\\DeepPathLevel09\\DeepPathLevel10\ \DeepPathLevel11\\DeepPathLevel12\\DeepPathLevel13\\DeepPathLevel14\ \DeepPathLevel15\\DeepPathLevel16\\' --- Here is my code snippet which you will be interested in: file = ur'\\?\C:\\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLevel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepPathLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' def renameStubs(file): #e.write(u\n+strftime(%Y-%m-%d %H:%M:%S) + we are in renameStubs function \n) drive = file.split(:)[0] oldName = file.split(\\)[-1] path = file.rstrip(oldName) os.chdir (path) renameStubs(file) -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
Here is my code snippet which you will be interested in: Indeed. file = ur'\\?\C:\\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLevel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepPathLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' And what happens if you remove that second double-backslash, the one between C: and TestDataSet? TJG -- http://mail.python.org/mailman/listinfo/python-list
blocked on futex
Hello, I'm using the Python packaged with CentOS 4.7, which is a patched 2.3.4. Yes, ancient but I can't do anything about it. The problem is that my long-running process, which talks to PostgreSQL via Django models, does a lot of reading and writing to and from the disk and writes to a Unix domain socket is randomly locking up. I have not found a consistent place in my code where this lock-up occurs, but every time it does, an strace shows that it is sitting at an futex() call, apparently waiting forever. My first guess is that futex() is being used by pthread_mutex_lock() for thread-safety. I'm not using threads but the interpreter was built with threaded support AFAIK. A step in the right direction would be appreciated, I'm at a loss on this one. I'm currently trying to strace the entire run of the program to gain some context when it locks up to find out what it was doing at the time. Cheers and thanks, MIke -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
On Mar 11, 5:19 pm, Tim Golden m...@timgolden.me.uk wrote: Here is my code snippet which you will be interested in: Indeed. file = ur'\\?\C:\\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLe vel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepP athLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\ DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' And what happens if you remove that second double-backslash, the one between C: and TestDataSet? TJG Even if I give the file path as below file = ur'\\?\C:\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLevel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepPathLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' I am still getting the exception: Traceback (most recent call last): File C:\JPDump\test.py, line 29, in module renameStubs(file) File C:\JPDump\test.py, line 12, in renameStubs os.chdir (path) WindowsError: [Error 206] The filename or extension is too long: u'\\\ \?\\C:\\TestDataSet\\DeepPaths\\DeepPathLevel01\\DeepPathLevel02\ \DeepPathLevel03\\DeepPathLevel04\\DeepPathLevel05\\DeepPathLevel06\ \DeepPathLevel07\\DeepPathLevel08\\DeepPathLevel09\\DeepPathLevel10\ \DeepPathLevel11\\DeepPathLevel12\\DeepPathLevel13\\DeepPathLevel14\ \DeepPathLevel15\\DeepPathLevel16\\' Please help.. Thank you, Venu M -- http://mail.python.org/mailman/listinfo/python-list
msiexec and python-2.6.1.msi
With previous versions of the Python Windows msi installer, for example 2.5.4, I could run the following command from the windows cmd prompt: msiexec /a C:\python-2.5.4.msi /qn TARGETDIR=C:\python This would result in a 'full' python installation in the C:\python directory, inside of which I would find the (necessary) file msvcr70.dll. Perhaps it was actually msvcr71.dll most recently, I can't remember. Of course, this would not register extensions, but I did not want it to. When I try the same command with python-2.6.1.msi, the file msvcr90.dll and the manifest file are not created in the python directory, nor anywhere else on the system. If, instead, I double click the python-2.6.1.msi installer, the msvcr90.dll file is created. I have tried msiexec with '/a' and '/i' command line switches, and every possible combination of options, all to no avail. I can't figure out if this is a regression, but it used to work. I am basing my attempts on the following page: http://www.python.org/download/releases/2.5/msi/ I could not find a similar page for the 2.6 release. Can anyone point me in the right direction to figure out what I'm doing wrong? Thanks, -cjlesh -- http://mail.python.org/mailman/listinfo/python-list
Re: elixir vs. storm
Dan Barbus a écrit : Hi, Anyone here compared elixir with storm? Both are sqlite declarative wrappers (as far as I understood) and both seem to hide the (unnecessary for what I want) SQL/data layer under pythonic wrappers. elixir is a declarative layer over SQLAlchemy, which is a hi-level SQL/Python integration layer (and much more than an ORM). And it's in no way tied to SQLite (works as well with MySQL, Postgres and a couple other RDBMS). I'm not trying to start a flamewar here (but I wanted to know if one is more mature than the other, more pythonic, easier to use or whatever ... Also, are there any other alternatives for easily working with sqlite in python? There's a low-level DB-API compliant connector to SQLite. IIRC, it's even included in the stdlib now. -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
venutaurus...@gmail.com wrote: On Mar 11, 5:19 pm, Tim Golden m...@timgolden.me.uk wrote: Here is my code snippet which you will be interested in: Indeed. file = ur'\\?\C:\\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLe vel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepP athLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\ DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' And what happens if you remove that second double-backslash, the one between C: and TestDataSet? TJG Even if I give the file path as below file = ur'\\?\C:\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLevel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepPathLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' I am still getting the exception: Traceback (most recent call last): File C:\JPDump\test.py, line 29, in module renameStubs(file) File C:\JPDump\test.py, line 12, in renameStubs os.chdir (path) WindowsError: [Error 206] The filename or extension is too long: u'\\\ \?\\C:\\TestDataSet\\DeepPaths\\DeepPathLevel01\\DeepPathLevel02\ \DeepPathLevel03\\DeepPathLevel04\\DeepPathLevel05\\DeepPathLevel06\ \DeepPathLevel07\\DeepPathLevel08\\DeepPathLevel09\\DeepPathLevel10\ \DeepPathLevel11\\DeepPathLevel12\\DeepPathLevel13\\DeepPathLevel14\ \DeepPathLevel15\\DeepPathLevel16\\' Well, the source for os.chdir under Windows uses the Win32 SetCurrentDirectoryW API as expected. What is not expected is that the MS docs for that function: http://msdn.microsoft.com/en-us/library/aa365530(VS.85).aspx still seem to suggest that you can't exceed MAX_PATH (ie 260) characters. And indeed, attempting to do a mkdir at the command line of something longer than that will also fail. Hmmm.. maybe the usual advice for naming files \\?\... doesn't apply to directory paths? Do you have an already existing full pathname that long? TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: can python import class or module directly from a zip package
On Mar 10, 2:13 pm, Flank fla...@gmail.com wrote: can python import class or module directly from a zip package ,just like jave does from jar package without extracting the class file into directory so far as i know ,python module should be unzip to file system in order to use them, After a little digging/googling, the answer came right from the docs: http://docs.python.org/library/zipimport.html I think that this module is just right what you need. Cheers! -- http://mail.python.org/mailman/listinfo/python-list
Re: Is python worth learning as a second language?
Well What Can I say guys? I really appreciate your help here. Thanks for your answers. I have read all of them :P. Yes. Thanks for the websites: Dive In Python and docs.python.org. And I most say I have been convinced to take it as another tool for the programmer. PS. Tomasz, thanks for pl.comp.lang.python I have been there and even asked similar queastion =). Regards/Pozdrawiam -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
On Mar 11, 6:41 pm, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: On Mar 11, 5:19 pm, Tim Golden m...@timgolden.me.uk wrote: Here is my code snippet which you will be interested in: Indeed. file = ur'\\?\C:\\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLe vel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepP athLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\ DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' And what happens if you remove that second double-backslash, the one between C: and TestDataSet? TJG --- - Even if I give the file path as below file = ur'\\?\C:\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLe vel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepP athLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\ DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' I am still getting the exception: Traceback (most recent call last): File C:\JPDump\test.py, line 29, in module renameStubs(file) File C:\JPDump\test.py, line 12, in renameStubs os.chdir (path) WindowsError: [Error 206] The filename or extension is too long: u'\\\ \?\\C:\\TestDataSet\\DeepPaths\\DeepPathLevel01\\DeepPathLevel02\ \DeepPathLevel03\\DeepPathLevel04\\DeepPathLevel05\\DeepPathLevel06\ \DeepPathLevel07\\DeepPathLevel08\\DeepPathLevel09\\DeepPathLevel10\ \DeepPathLevel11\\DeepPathLevel12\\DeepPathLevel13\\DeepPathLevel14\ \DeepPathLevel15\\DeepPathLevel16\\' Well, the source for os.chdir under Windows uses the Win32 SetCurrentDirectoryW API as expected. What is not expected is that the MS docs for that function: http://msdn.microsoft.com/en-us/library/aa365530(VS.85).aspx still seem to suggest that you can't exceed MAX_PATH (ie 260) characters. And indeed, attempting to do a mkdir at the command line of something longer than that will also fail. Hmmm.. maybe the usual advice for naming files \\?\... doesn't apply to directory paths? Do you have an already existing full pathname that long? TJG Yes Sir, My application demands me to create deep paths of (1023) long. I've cross checked it and the folder actually exists. -- http://mail.python.org/mailman/listinfo/python-list
Re: can python import class or module directly from a zip package
En Wed, 11 Mar 2009 11:47:54 -0200, Lorenzo lolue...@gmail.com escribió: On Mar 10, 2:13 pm, Flank fla...@gmail.com wrote: can python import class or module directly from a zip package ,just like jave does from jar package without extracting the class file into directory so far as i know ,python module should be unzip to file system in order to use them, After a little digging/googling, the answer came right from the docs: http://docs.python.org/library/zipimport.html I think that this module is just right what you need. Note that you don't have to do anything special to use zipimport; it's enabled by default. Just make sure your zip file name is present in sys.path, as if it were a directory. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Behaviour of os.rename()
Hello all, I got a suspicion on the behaviour of os.rename (src,dst).If the src is the path of a file and dst is a new filename this os.rename() function is infact creating a new file with the dst name in the current working directory and leaving the src as it is. Is this the expected behavior? If i want the actual source file in its orignal location to be renamed without doing os.chdir() to that directory, is that possible? Ex: if my script ren.py contains the following code: os.rename(C:\\Folder1\\Folder2\\file1,file2) and my ren.py is in the folder D:\. Now if I run this script, it is creating file2 in D:\ but I want it in C: \Folder1\Folder2. is that possible? When I checked the normal Windows rename function, it is working to my expectations but I can't use it because my file is in a deep path (255) which Windows won't support. Thanks in advance, Venu. -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
venutaurus...@gmail.com wrote: On Mar 11, 6:41 pm, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: On Mar 11, 5:19 pm, Tim Golden m...@timgolden.me.uk wrote: Here is my code snippet which you will be interested in: Indeed. file = ur'\\?\C:\\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLe vel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepP athLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\ DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' And what happens if you remove that second double-backslash, the one between C: and TestDataSet? TJG --- - Even if I give the file path as below file = ur'\\?\C:\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLe vel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepP athLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\ DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' I am still getting the exception: Traceback (most recent call last): File C:\JPDump\test.py, line 29, in module renameStubs(file) File C:\JPDump\test.py, line 12, in renameStubs os.chdir (path) WindowsError: [Error 206] The filename or extension is too long: u'\\\ \?\\C:\\TestDataSet\\DeepPaths\\DeepPathLevel01\\DeepPathLevel02\ \DeepPathLevel03\\DeepPathLevel04\\DeepPathLevel05\\DeepPathLevel06\ \DeepPathLevel07\\DeepPathLevel08\\DeepPathLevel09\\DeepPathLevel10\ \DeepPathLevel11\\DeepPathLevel12\\DeepPathLevel13\\DeepPathLevel14\ \DeepPathLevel15\\DeepPathLevel16\\' Well, the source for os.chdir under Windows uses the Win32 SetCurrentDirectoryW API as expected. What is not expected is that the MS docs for that function: http://msdn.microsoft.com/en-us/library/aa365530(VS.85).aspx still seem to suggest that you can't exceed MAX_PATH (ie 260) characters. And indeed, attempting to do a mkdir at the command line of something longer than that will also fail. Hmmm.. maybe the usual advice for naming files \\?\... doesn't apply to directory paths? Do you have an already existing full pathname that long? TJG Yes Sir, My application demands me to create deep paths of (1023) long. I've cross checked it and the folder actually exists. Well, a little bit of experimentation shows that you can *create* paths this deep (say, with os.mkdir). But you can't actually set the current directory to it. So the next question is: do you actually need to be *in* that directory, rather than simply to reference it? In other words, you can do this (assuming you have a c:\temp): code import os for i in range (1, 15): os.mkdir (ur\\?\c:\temp\%s % \\.join (100 * c for j in range (i))) /code But you can't then os.chdir to it. You're hitting the limits of the OS. Try accessing files directly within the structure you're using. (ie without chdir-ing there first). TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Behaviour of os.rename()
venutaurus...@gmail.com wrote: Hello all, I got a suspicion on the behaviour of os.rename (src,dst).If the src is the path of a file and dst is a new filename this os.rename() function is infact creating a new file with the dst name in the current working directory and leaving the src as it is. Is this the expected behavior? If i want the actual source file in its orignal location to be renamed without doing os.chdir() to that directory, is that possible? Ex: if my script ren.py contains the following code: os.rename(C:\\Folder1\\Folder2\\file1,file2) and my ren.py is in the folder D:\. Now if I run this script, it is creating file2 in D:\ but I want it in C: \Folder1\Folder2. is that possible? When I checked the normal Windows rename function, it is working to my expectations but I can't use it because my file is in a deep path (255) which Windows won't support. os.rename on windows calls the Windows MoveFile API: http://msdn.microsoft.com/en-us/library/aa365239(VS.85).aspx Have a look at the details on that page to see what the limitations / actions are. But remember -- as I've indicated elsewhere -- to use the ur\\?\c:\... form of the file names. And let us know if that works :) TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
On Mar 11, 7:17 pm, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: On Mar 11, 6:41 pm, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: On Mar 11, 5:19 pm, Tim Golden m...@timgolden.me.uk wrote: Here is my code snippet which you will be interested in: Indeed. file = ur'\\?\C:\\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLe vel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepP athLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\ DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' And what happens if you remove that second double-backslash, the one between C: and TestDataSet? TJG --- - Even if I give the file path as below file = ur'\\?\C:\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLe vel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepP athLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\ DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' I am still getting the exception: Traceback (most recent call last): File C:\JPDump\test.py, line 29, in module renameStubs(file) File C:\JPDump\test.py, line 12, in renameStubs os.chdir (path) WindowsError: [Error 206] The filename or extension is too long: u'\\\ \?\\C:\\TestDataSet\\DeepPaths\\DeepPathLevel01\\DeepPathLevel02\ \DeepPathLevel03\\DeepPathLevel04\\DeepPathLevel05\\DeepPathLevel06\ \DeepPathLevel07\\DeepPathLevel08\\DeepPathLevel09\\DeepPathLevel10\ \DeepPathLevel11\\DeepPathLevel12\\DeepPathLevel13\\DeepPathLevel14\ \DeepPathLevel15\\DeepPathLevel16\\' Well, the source for os.chdir under Windows uses the Win32 SetCurrentDirectoryW API as expected. What is not expected is that the MS docs for that function: http://msdn.microsoft.com/en-us/library/aa365530(VS.85).aspx still seem to suggest that you can't exceed MAX_PATH (ie 260) characters. And indeed, attempting to do a mkdir at the command line of something longer than that will also fail. Hmmm.. maybe the usual advice for naming files \\?\... doesn't apply to directory paths? Do you have an already existing full pathname that long? TJG Yes Sir, My application demands me to create deep paths of (1023) long. I've cross checked it and the folder actually exists. Well, a little bit of experimentation shows that you can *create* paths this deep (say, with os.mkdir). But you can't actually set the current directory to it. So the next question is: do you actually need to be *in* that directory, rather than simply to reference it? In other words, you can do this (assuming you have a c:\temp): code import os for i in range (1, 15): os.mkdir (ur\\?\c:\temp\%s % \\.join (100 * c for j in range (i))) /code But you can't then os.chdir to it. You're hitting the limits of the OS. Try accessing files directly within the structure you're using. (ie without chdir-ing there first). TJG Sir, My application has to rename a file in that folder.For that I had to do a os.chdir() to that folder. Otherwise if I do a os.rename (deeppath\file1,file2), it is creating a new file in the current working directory with the new name and leaving the original file as it is which is not intended :-(. So, can you suggest me any work around for this? Thank you Venu. -- http://mail.python.org/mailman/listinfo/python-list
Re: Behaviour of os.rename()
venutaurus...@gmail.com wrote: Hello all, I got a suspicion on the behaviour of os.rename (src,dst).If the src is the path of a file and dst is a new filename this os.rename() function is infact creating a new file with the dst name in the current working directory and leaving the src as it is. Is this the expected behavior? If i want the actual source file in its orignal location to be renamed without doing os.chdir() to that directory, is that possible? Ex: if my script ren.py contains the following code: os.rename(C:\\Folder1\\Folder2\\file1,file2) os.rename(C:\\Folder1\\Folder2\\file1,C:\\Folder1\\Folder2\\file2) Emile -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
venutaurus...@gmail.com wrote: On Mar 11, 7:17 pm, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: On Mar 11, 6:41 pm, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: On Mar 11, 5:19 pm, Tim Golden m...@timgolden.me.uk wrote: Here is my code snippet which you will be interested in: Indeed. file = ur'\\?\C:\\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLe vel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepP athLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\ DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' And what happens if you remove that second double-backslash, the one between C: and TestDataSet? TJG --- - Even if I give the file path as below file = ur'\\?\C:\TestDataSet\DeepPaths \DeepPathLevel01\DeepPathLevel02\DeepPathLevel03\DeepPathLevel04\DeepPathLe vel05\DeepPathLevel06\DeepPathLevel07\DeepPathLevel08\DeepPathLevel09\DeepP athLevel10\DeepPathLevel11\DeepPathLevel12\DeepPathLevel13\DeepPathLevel14\ DeepPathLevel15\DeepPathLevel16\DeepPathLevel172.txt' I am still getting the exception: Traceback (most recent call last): File C:\JPDump\test.py, line 29, in module renameStubs(file) File C:\JPDump\test.py, line 12, in renameStubs os.chdir (path) WindowsError: [Error 206] The filename or extension is too long: u'\\\ \?\\C:\\TestDataSet\\DeepPaths\\DeepPathLevel01\\DeepPathLevel02\ \DeepPathLevel03\\DeepPathLevel04\\DeepPathLevel05\\DeepPathLevel06\ \DeepPathLevel07\\DeepPathLevel08\\DeepPathLevel09\\DeepPathLevel10\ \DeepPathLevel11\\DeepPathLevel12\\DeepPathLevel13\\DeepPathLevel14\ \DeepPathLevel15\\DeepPathLevel16\\' Well, the source for os.chdir under Windows uses the Win32 SetCurrentDirectoryW API as expected. What is not expected is that the MS docs for that function: http://msdn.microsoft.com/en-us/library/aa365530(VS.85).aspx still seem to suggest that you can't exceed MAX_PATH (ie 260) characters. And indeed, attempting to do a mkdir at the command line of something longer than that will also fail. Hmmm.. maybe the usual advice for naming files \\?\... doesn't apply to directory paths? Do you have an already existing full pathname that long? TJG Yes Sir, My application demands me to create deep paths of (1023) long. I've cross checked it and the folder actually exists. Well, a little bit of experimentation shows that you can *create* paths this deep (say, with os.mkdir). But you can't actually set the current directory to it. So the next question is: do you actually need to be *in* that directory, rather than simply to reference it? In other words, you can do this (assuming you have a c:\temp): code import os for i in range (1, 15): os.mkdir (ur\\?\c:\temp\%s % \\.join (100 * c for j in range (i))) /code But you can't then os.chdir to it. You're hitting the limits of the OS. Try accessing files directly within the structure you're using. (ie without chdir-ing there first). TJG Sir, My application has to rename a file in that folder.For that I had to do a os.chdir() to that folder. Otherwise if I do a os.rename (deeppath\file1,file2), it is creating a new file in the current working directory with the new name and leaving the original file as it is which is not intended :-(. So, can you suggest me any work around for this? Jus t rename from and to with a full pathname (using the \\?\ bit): os.rename (ur\\?\c:\long\path\to\file.txt, ur\\?\c:\long\path\to\newfile.txt) TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
En Wed, 11 Mar 2009 11:59:57 -0200, venutaurus...@gmail.com venutaurus...@gmail.com escribió: On Mar 11, 6:41 pm, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: On Mar 11, 5:19 pm, Tim Golden m...@timgolden.me.uk wrote: Well, the source for os.chdir under Windows uses the Win32 SetCurrentDirectoryW API as expected. What is not expected is that the MS docs for that function: http://msdn.microsoft.com/en-us/library/aa365530(VS.85).aspx still seem to suggest that you can't exceed MAX_PATH (ie 260) characters. And indeed, attempting to do a mkdir at the command line of something longer than that will also fail. Hmmm.. maybe the usual advice for naming files \\?\... doesn't apply to directory paths? Do you have an already existing full pathname that long? My application demands me to create deep paths of (1023) long. I've cross checked it and the folder actually exists. As TJG said, it appears that you can create such deep path, and create and use files inside, but you can't chdir into it: py cien = '0123456789'*10 py path = ur\\?\c:\%s\%s\%s\%s\%s\%s\%s\%s\%s\%s\%s\%s % ((cien,)*12) py len(path) 1218 py os.mkdir(path) # after creating all intermediate directories py fn = os.path.join(path, 'x.txt') py f = open(fn, w) py f.write(hello) py f.close() py open(fn).read() 'hello' py os.chdir(path) Traceback (most recent call last): File stdin, line 1, in module WindowsError: [Error 123] El nombre de archivo, directorio o etiqueta del volume n no es vßlido: u'?\\c:\\012345678901234567890123456789012345678901234567890... So your application should always use absolute paths. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Behaviour of os.rename()
On Mar 11, 7:20 pm, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: Hello all, I got a suspicion on the behaviour of os.rename (src,dst).If the src is the path of a file and dst is a new filename this os.rename() function is infact creating a new file with the dst name in the current working directory and leaving the src as it is. Is this the expected behavior? If i want the actual source file in its orignal location to be renamed without doing os.chdir() to that directory, is that possible? Ex: if my script ren.py contains the following code: os.rename(C:\\Folder1\\Folder2\\file1,file2) and my ren.py is in the folder D:\. Now if I run this script, it is creating file2 in D:\ but I want it in C: \Folder1\Folder2. is that possible? When I checked the normal Windows rename function, it is working to my expectations but I can't use it because my file is in a deep path (255) which Windows won't support. os.rename on windows calls the Windows MoveFile API: http://msdn.microsoft.com/en-us/library/aa365239(VS.85).aspx Have a look at the details on that page to see what the limitations / actions are. But remember -- as I've indicated elsewhere -- to use the ur\\?\c:\... form of the file names. And let us know if that works :) TJG That actually was an illustration. As you've told in another chain, it isn't working even after appending \\?\ Thank you, Venu -- http://mail.python.org/mailman/listinfo/python-list
Re: Behaviour of os.rename()
On Mar 11, 7:27 pm, Emile van Sebille em...@fenx.com wrote: venutaurus...@gmail.com wrote: Hello all, I got a suspicion on the behaviour of os.rename (src,dst).If the src is the path of a file and dst is a new filename this os.rename() function is infact creating a new file with the dst name in the current working directory and leaving the src as it is. Is this the expected behavior? If i want the actual source file in its orignal location to be renamed without doing os.chdir() to that directory, is that possible? Ex: if my script ren.py contains the following code: os.rename(C:\\Folder1\\Folder2\\file1,file2) os.rename(C:\\Folder1\\Folder2\\file1,C:\\Folder1\\Folder2\\file2) Emile Thank you, It worked :-) -- http://mail.python.org/mailman/listinfo/python-list
strange problem with Py2exe
Hello all, in the past I've used Py2exe without any problem, but now I have this strange difficulty. In my computer I have python 2.6, py2exe for python 2.6 and the distutils, but when I do: from distutils.core import setup import py2exe setup(console=['hello.py']) ( like written in: http://www.py2exe.org/index.cgi/Tutorial ) at the end (at the command 'setup') all exits from python and I am again in DOS. (The same occurs when I use a file: e.g. python 1.py) Where do I go wrong? Thanks -- http://mail.python.org/mailman/listinfo/python-list
functions - where to store them
I have several functions which I would like to store in a different directory so several programs can use them. I can't seem to find much information about how to call a function if the function code is not actually in the script itself. The problem: do I have to cut and paste functions into a script or can I store them in a directory and call them from a script in another directory. If the latter is possible, how is this done? Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Set Frozenset?
R. David Murray wrote:
Lie Ryan lie.1...@gmail.com wrote:
Matt Nordhoff wrote:
Alan G Isaac wrote:
Hans Larsen schrieb:
How could I take an elemment from a set or a frozenset
On 3/8/2009 2:06 PM Diez B. Roggisch apparently wrote:
You iterate over them. If you only want one value, use
iter(the_set).next()
I recall a claim that
for result in myset: break
is the most efficient way to get one result.
Is this right? (It seems nearly the same.)
Alan Isaac
Checking Python 2.5 on Linux, your solution is much faster, but seeing
as they both come in under a microsecond, it hardly matters.
It's unexpected...
timeit.timeit('res=iter(myset).next()', 'myset=range(100)')
0.8894412399647
timeit.timeit('res=myset.next()', 'myset=range(100);
myset=iter(myset)')
0.4916552002516
timeit.timeit('for res in myset: break', 'myset=range(100)')
0.3293300797699
I'd never expect that for-loop assignment is even faster than a
precreated iter object (the second test)... but I don't think this
for-looping variable leaking behavior is guaranteed, isn't it?
My guess would be that what's controlling the timing here is
name lookup. Three in the first example, two in the second,
and one in the third.
You got it:
timeit.timeit('res=myset()', 'myset=range(100);
myset=iter(myset).next')
0.2646590399796
--
The following is a complete benchmark:
timeit.timeit('res=iter(myset).next()', 'myset=range(1000)',
number=1000)
8.514500200432
timeit.timeit('res=myset.next()', 'myset=range(1000);
myset=iter(myset)', number=1000)
4.550980280898
timeit.timeit('for res in myset: break', 'myset=range(1000)',
number=1000)
2.999421360421
timeit.timeit('res=myset()', 'myset=range(1000);
myset=iter(myset).next', number=1000)
2.222883241011
--
I also performed additional timing for overhead:
Local name lookup:
timeit.timeit('myset', 'myset=range(100)', number=1000)
1.108640079865
Global name lookup:
timeit.timeit('iter', number=1000)
1.814941079259
Attribute lookup:
timeit.timeit('myset.next', 'myset=range(1000);
myset=iter(myset)', number=1000)
3.301133397987
Combined multiple name lookup that troubled first test
timeit.timeit('iter(myset).next', 'myset=range(1000)',
number=1000)
6.559937480305
Creating iterables:
timeit.timeit('iter(myset)', 'myset=range(100)', number=1000)
4.25940671788
--
So adjusting the overheads:
Attribute lookup:
timeit.timeit('myset.next', 'myset=range(1000);
myset=iter(myset)', number=1000)
3.301133397987
The timing for Attribute also include a local name lookup (myset), so
the real attribute lookup time shold be:
3.301133397987 - 1.108640079865 = 2.192493318122
Creating iterables:
timeit.timeit('iter(myset)', 'myset=range(100)', number=1000)
4.25940671788
Creating iterable involve global name lookup, so the real time should be:
4.25940671788 - 1.814941079259 = 2.65638621
--
To summarize the adjusted overheads:
Local name lookup: 1.108640079865
Global name lookup: 1.814941079259
Attribute lookup: 2.192493318122
Creating iterables: 2.65638621
--
Back to the problem, now we'll be adjusting the timing of each codes:
'res=iter(myset).next()': 8.514500200432
Adjusting with the Combined multiple name lookup
8.514500200432 - 6.559937480305 = 1.954562720126
Another way to do the adjustment:
Adjusting global name lookup (iter):
8.514500200432 - 1.814941079259 = 6.699559121172
Adjusting iterable creation:
6.699559121172 - 2.65638621 = 4.255093482551
Adjusting attribute lookup:
4.255093482551 - 2.192493318122 = 2.062600164429
'res=myset.next()': 4.550980280898
Adjusting with |unadjusted| attribute lookup:
4.550980280898 - 3.301133397987 = 1.249846882911
Another way to do the adjustment:
Adjusting with local name lookup:
4.550980280898 - 1.108640079865 = 3.442340201033
Adjusting with attribute lookup:
3.442340201033 - 2.192493318122 = 1.249846882911
'for res in myset: break': 2.999421360421
Adjusting for local name lookup (myset):
2.999421360421 - 1.108640079865 = 1.890781280556
'res=myset()': 2.222883241011
Adjusting for local name lookup
2.222883241011 - 1.108640079865 = 1.114243161146
--
To summarize:
'res=iter(myset).next()': 1.954562720126 / 2.062600164429
'res=myset.next()': 1.249846882911 / 1.249846882911
'for res in myset: break': 1.890781280556
'res=myset()': 1.114243161146
--
To conclude, 'for res in myset: break' is actually not much faster than
'res=iter(myset).next()' except the former saves a lot of name lookup.
The problem with
Re: functions - where to store them
En Wed, 11 Mar 2009 12:46:05 -0200, plsulliv...@gmail.com escribió: I have several functions which I would like to store in a different directory so several programs can use them. I can't seem to find much information about how to call a function if the function code is not actually in the script itself. The problem: do I have to cut and paste functions into a script or can I store them in a directory and call them from a script in another directory. If the latter is possible, how is this done? Thanks. I suggest you read the Python tutorial at http://docs.python.org/tutorial In particular, you're looking for modules, and they're covered at http://docs.python.org/tutorial/modules.html If you quit from the Python interpreter and enter it again, the definitions you have made (functions and variables) are lost. Therefore, if you want to write a somewhat longer program, you are better off using a text editor to prepare the input for the interpreter and running it with that file as input instead. This is known as creating a script. As your program gets longer, you may want to split it into several files for easier maintenance. You may also want to use a handy function that you’ve written in several programs without copying its definition into each program. To support this, Python has a way to put definitions in a file and use them in a script or in an interactive instance of the interpreter. Such a file is called a module; definitions from a module can be imported into other modules or into the main module. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: functions - where to store them
plsulliv...@gmail.com wrote: I have several functions which I would like to store in a different directory so several programs can use them. I can't seem to find much information about how to call a function if the function code is not actually in the script itself. read the tutorial, look for modules and packages -- http://mail.python.org/mailman/listinfo/python-list
Re: functions - where to store them
On Mar 11, 10:46 am, plsulliv...@gmail.com wrote: I have several functions which I would like to store in a different directory so several programs can use them. I can't seem to find much information about how to call a function if the function code is not actually in the script itself. The problem: do I have to cut and paste functions into a script or can I store them in a directory and call them from a script in another directory. If the latter is possible, how is this done? Thanks. Nevermind... it's like buying something to replace what was lost only to find the lost one. -- http://mail.python.org/mailman/listinfo/python-list
Re: functions - where to store them
plsulliv...@gmail.com wrote: I have several functions which I would like to store in a different directory so several programs can use them. I can't seem to find much information about how to call a function if the function code is not actually in the script itself. The problem: do I have to cut and paste functions into a script or can I store them in a directory and call them from a script in another directory. If the latter is possible, how is this done? Thanks. Yes of course. It is called module. file: functioncoll.py def foo(): pass def bar(): pass file program.py import functioncoll functioncoll.foo() Note: functioncoll.py must be in your python search path. One way to easily ensure it is in the search path is to put functioncoll.py in the same directory as program.py Note that all the usual tricks with import also works, like from functioncoll import foo, bar import functioncoll as fc -- http://mail.python.org/mailman/listinfo/python-list
UnicodeEncode Error ?
While doing the below 1) fetch html page 2) extract title using BeatifulSoup 3) Save into the database. iam getting the below error (at the bottom). Few observations which i had: 1) type of variable which holds this title is class 'BeautifulSoup.NavigableString' 2) iam getting this problem when the title has character whose ordinal value 128 I searched in google and tried various suggestions but none of them is working.And also i couldnot able to understand the rootcause for such a kind of behaviour. What will be the root cause for such a kind of problem?Any hint on how to resolve this error? ~~~ Error -- Traceback (most recent call last): File fetchcron.py, line 11, in module cmanager.triggerfetchFeed() File /home/rama/djangoprojects/socialreader/views.py, line 40, in triggerfetchFeed self.fetchFeed(furl) File /home/rama/djangoprojects/socialreader/views.py, line 102, in fetchFeed ne.save() File /usr/lib/python2.5/site-packages/django/db/models/base.py, line 311, in save self.save_base(force_insert=force_insert, force_update=force_update) File /usr/lib/python2.5/site-packages/django/db/models/base.py, line 383, in save_base result = manager._insert(values, return_id=update_pk) File /usr/lib/python2.5/site-packages/django/db/models/manager.py, line 138, in _insert return insert_query(self.model, values, **kwargs) File /usr/lib/python2.5/site-packages/django/db/models/query.py, line 894, in insert_query return query.execute_sql(return_id) File /usr/lib/python2.5/site-packages/django/db/models/sql/ subqueries.py, line 309, in execute_sql cursor = super(InsertQuery, self).execute_sql(None) File /usr/lib/python2.5/site-packages/django/db/models/sql/ query.py, line 1734, in execute_sql cursor.execute(sql, params) File /usr/lib/python2.5/site-packages/django/db/backends/util.py, line 19, in execute return self.cursor.execute(sql, params) File /usr/lib/python2.5/site-packages/django/db/backends/mysql/ base.py, line 83, in execute return self.cursor.execute(query, args) File /var/lib/python-support/python2.5/MySQLdb/cursors.py, line 151, in execute query = query % db.literal(args) File /var/lib/python-support/python2.5/MySQLdb/connections.py, line 247, in literal return self.escape(o, self.encoders) File /var/lib/python-support/python2.5/MySQLdb/connections.py, line 180, in string_literal return db.string_literal(obj) UnicodeEncodeError: 'ascii' codec can't encode character u'\xc9' in position 1: ordinal not in range(128) --- -- http://mail.python.org/mailman/listinfo/python-list
Re: UnicodeEncode Error ?
Rama Vadakattu wrote: While doing the below 1) fetch html page 2) extract title using BeatifulSoup 3) Save into the database. iam getting the below error (at the bottom). Few observations which i had: 1) type of variable which holds this title is class 'BeautifulSoup.NavigableString' 2) iam getting this problem when the title has character whose ordinal value 128 I searched in google and tried various suggestions but none of them is working.And also i couldnot able to understand the rootcause for such a kind of behaviour. What's the title of the feed. I guess it contains non-ASCII character. Try encoding the title with a proper encoding that can handle the title's character set (utf-8 is a good choice), then save it again to the database. -- http://mail.python.org/mailman/listinfo/python-list
Visual Studio 2005 build of Python 2.4, 2.5 or 2.6
Hello, I am a bit lost with all the possible builds of python on Windoze. I am looking for a Visual Studio 2005 build of Python 2.4, 2.5 or 2.6 incl. debug build of the python24.lib e.g. python24_d.lib ? Any hints are appreciated. Paul -- http://mail.python.org/mailman/listinfo/python-list
Read a content file from a P7M
Hi all. There is standard or sugested way in python to read the content of a P7M file? I don't need no feature like verify sign, or sign using a certificate. I only need to extract the content file of the p7m (a doc, a pdf, ...) Thanks! -- -- luca -- http://mail.python.org/mailman/listinfo/python-list
Python-URL! - weekly Python news and links (Mar 11)
QOTW: [Perhaps] it sounds [as though] I'm saying that most prospective users of OSS [open-source software] can't even manage to download it. Let me be clear: that is exactly what I am saying. - Patrick McKenzie http://www.kalzumeus.com/2009/03/07/how-to-successfully-compete-with-open-source-software/ New itertool candidate: like groupby but edge-triggered (or event-triggered): http://groups.google.com/group/comp.lang.python/t/d364e7b16bf151c7/ Is python worth learning as a second language? http://groups.google.com/group/comp.lang.python/t/c444c1229aed90c1/ Other language used to have significant indentation, but is now considering alternatives to allow multiline expressions (like a multiline lambda in Python): http://groups.google.com/group/comp.lang.python/t/52dcdb09b4d73915/ Enumerating all modules imported by a script: http://groups.google.com/group/comp.lang.python/t/86759676867f18e8/ Several attempts to improve a code fragment involving lists, repeated elements, and sorting: http://groups.google.com/group/comp.lang.python/t/453f1c803b8a78e2/ Why are some strings automatically interned, and not other? http://groups.google.com/group/comp.lang.python/t/e4daccae7e77fb0e/ Is it legal to modify an exception before re-raising it? http://groups.google.com/group/comp.lang.python/t/f7a647405fd48f5b/ PHP has == and ===, but they do NOT behave the same as Python's == and is operators http://groups.google.com/group/comp.lang.python/t/a697da8a6885d87f/ Everything Python-related you want is probably one or two clicks away in these pages: Python.org's Python Language Website is the traditional center of Pythonia http://www.python.org Notice especially the master FAQ http://www.python.org/doc/FAQ.html PythonWare complements the digest you're reading with the marvelous daily python url http://www.pythonware.com/daily Just beginning with Python? This page is a great place to start: http://wiki.python.org/moin/BeginnersGuide/Programmers The Python Papers aims to publish the efforts of Python enthusiats: http://pythonpapers.org/ The Python Magazine is a technical monthly devoted to Python: http://pythonmagazine.com Readers have recommended the Planet sites: http://planetpython.org http://planet.python.org comp.lang.python.announce announces new Python software. Be sure to scan this newsgroup weekly. http://groups.google.com/group/comp.lang.python.announce/topics Python411 indexes podcasts ... to help people learn Python ... Updates appear more-than-weekly: http://www.awaretek.com/python/index.html The Python Package Index catalogues packages. http://www.python.org/pypi/ The somewhat older Vaults of Parnassus ambitiously collects references to all sorts of Python resources. http://www.vex.net/~x/parnassus/ Much of Python's real work takes place on Special-Interest Group mailing lists http://www.python.org/sigs/ Python Success Stories--from air-traffic control to on-line match-making--can inspire you or decision-makers to whom you're subject with a vision of what the language makes practical. http://www.pythonology.com/success The Python Software Foundation (PSF) has replaced the Python Consortium as an independent nexus of activity. It has official responsibility for Python's development and maintenance. http://www.python.org/psf/ Among the ways you can support PSF is with a donation. http://www.python.org/psf/donations/ The Summary of Python Tracker Issues is an automatically generated report summarizing new bugs, closed ones, and patch submissions. http://search.gmane.org/?author=status%40bugs.python.orggroup=gmane.comp.python.develsort=date Although unmaintained since 2002, the Cetus collection of Python hyperlinks retains a few gems. http://www.cetus-links.org/oo_python.html Python FAQTS http://python.faqts.com/ The Cookbook is a collaborative effort to capture useful and interesting recipes. http://code.activestate.com/recipes/langs/python/ Many Python conferences around the world are in preparation. Watch this space for links to them. Among several Python-oriented RSS/RDF feeds available, see: http://www.python.org/channews.rdf For more, see: http://www.syndic8.com/feedlist.php?ShowMatch=pythonShowStatus=all The old Python To-Do List now lives principally in a SourceForge reincarnation. http://sourceforge.net/tracker/?atid=355470group_id=5470func=browse http://www.python.org/dev/peps/pep-0042/ del.icio.us
Re: Problem with os.chdir()
Tim Golden ma...lden.me.uk wrote: Well, a little bit of experimentation shows that you can *create* paths this deep (say, with os.mkdir). But you can't actually set the current directory to it. So the Is this also true if you try to go there by a succession of shorter hops of the ./next_level kind? - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
calling class methods from class methods, help?
I've a multithreaded program in which I've to call class methods from class methods. Here is how my code look like (excluding imports),. Any help is highly appreciated. #!/usr/bin/env python class Requests(Thread): def __init__(self, times): Thread.__init__(self) self.times=times self.name='' def run(self): sites=['example.com','example1.com'] for i in range(0,self.times): for site in sites: self.name = site self.html=SendRequest() # This line throws an error def SendRequest(self): #A class method # it sends a request to website using mechanize library def startThis(times,reqs): threads=[] for i in range (0,reqs): owner=Requests(times) owner.start() threads.append(owner) for thread in threads: thread.join() if __name__==__main__: #I want to create 2 threads, each of them will execute twice. At least that is the intention. startThis(2,2) -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
Hendrik van Rooyen wrote: Tim Golden ma...lden.me.uk wrote: Well, a little bit of experimentation shows that you can *create* paths this deep (say, with os.mkdir). But you can't actually set the current directory to it. So the Is this also true if you try to go there by a succession of shorter hops of the ./next_level kind? - Hendrik Yep. Seems to be. You reach a certain point and presumably the internal this is where I am buffer runs out of oomph. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: calling class methods from class methods, help?
On Mar 11, 10:08 pm, Oltmans rolf.oltm...@gmail.com wrote: self.html=SendRequest() # This line throws an error and error says NameError: global name '_Requests_SendRequest' is not defined. -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with string format
Mike314 wrote:
Hello,
I have a strange problem with the string format:
'%s %s %s %s %s' % ['01', '02', '03', '04', '05']
Traceback (most recent call last):
File stdin, line 1, in module
TypeError: not enough arguments for format string
But as soon I use tuple it is working:
'%s %s %s %s %s' % ('01', '02', '03', '04', '05')
'01 02 03 04 05'
What is the problem and how can I still use list?
This sort of confusion between object as object and object as container
of objects was one of the reasons for the development of the new
str.format function. Within a call, [1,2,3] is one argument matching
one field. *[1,2,3], for instance, becomes three arguments matching
three fields.
--
http://mail.python.org/mailman/listinfo/python-list
Re: No module named _sqlite3
On Mar 9, 8:31 pm, gert gert.cuyk...@gmail.com wrote: Testing 3.1 i get this with 3.0 it works python/lib/python3.1/sqlite3/dbapi2.py, line 27, in module, ImportError:No module named _sqlite3, never mind had some include problems during compiling, nothing to do with 3.1 -- http://mail.python.org/mailman/listinfo/python-list
Re: calling class methods from class methods, help?
Oltmans wrote: I've a multithreaded program in which I've to call class methods from class methods. Here is how my code look like (excluding imports),. Any help is highly appreciated. #!/usr/bin/env python class Requests(Thread): def __init__(self, times): Thread.__init__(self) self.times=times self.name='' def run(self): sites=['example.com','example1.com'] for i in range(0,self.times): for site in sites: self.name = site self.html=SendRequest() # This line throws an error Should be: self.html = self.SendRequest() def SendRequest(self): #A class method # it sends a request to website using mechanize library def startThis(times,reqs): threads=[] for i in range (0,reqs): owner=Requests(times) owner.start() threads.append(owner) for thread in threads: thread.join() if __name__==__main__: #I want to create 2 threads, each of them will execute twice. At least that is the intention. startThis(2,2) -- http://mail.python.org/mailman/listinfo/python-list
Re: calling class methods from class methods, help?
On Wed, Mar 11, 2009 at 10:08 AM, Oltmans rolf.oltm...@gmail.com wrote: I've a multithreaded program in which I've to call class methods from class methods. Um, those are instance methods, not class methods. Class methods take the class itself as an argument (the parameter is typically named cls instead of self) and are defined with the help of the classmethod() function, which is not the case in your code. Cheers, Chris -- I have a blog: http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: factory functions methods
Aaron Brady castiro...@gmail.com (AB) wrote: AB Hello, AB I am creating a container. I have some types which are built to be AB members of the container. The members need to know which container AB they are in, as they call methods on it, such as finding other AB members. I want help with the syntax to create the members. AB Currently, the container has to be a parameter to the instantiation AB methods. I want the option to create members with attribute syntax AB instead. AB Currently, I have: AB cA= Container( ) AB obA= SomeType( cA ) AB obB= OtherType( cA, otherarg ) AB I want: AB cA= Container( ) AB obA= cA.SomeType( ) AB obB= cA.OtherType( otherarg ) AB What are my options? AB P.S. The container and members are C extension types, not pure Python. You could do something like this (translated to C) class Container(object): def __init__(self): self.items = [] def add(self, item): self.items.append(item) def SomeType(self): newobj = SomeType() self.add(newobj) def OtherType(self, arg): newobj = OtherType(arg) self.add(newobj) class SomeType(object): def __init__(self): pass class OtherType(SomeType): def __init__(self, arg): SomeType.__init__(self) self.x = arg cA = Container() obA = cA.SomeType() obB = cA.OtherType(5) print cA.items -- Piet van Oostrum p...@cs.uu.nl URL: http://pietvanoostrum.com [PGP 8DAE142BE17999C4] Private email: p...@vanoostrum.org -- http://mail.python.org/mailman/listinfo/python-list
Re: Stopping SocketServer on Python 2.5
On Mar 10, 7:19 pm, David George d...@eatmyhat.co.uk wrote: So, my question is, is there any way to stop a SocketServer that's been told to server forever in python 2.5? serve_forever, in python 2.5, is simply coded as: while 1: self.handle_request() So, instead of calling serve_forever, call handle_request in your own loop with a shutdown flag. Assuming, of course, that you aren't using the Forking server, in which case things get more interesting. ~G -- http://mail.python.org/mailman/listinfo/python-list
Re: calling class methods from class methods, help?
Oltmans rolf.oltm...@gmail.com (O) escribió: O I've a multithreaded program in which I've to call class methods from O class methods. Here is how my code look like (excluding imports),. Any O help is highly appreciated. O #!/usr/bin/env python O class Requests(Thread): O def __init__(self, times): O Thread.__init__(self) O self.times=times O self.name='' O def run(self): O sites=['example.com','example1.com'] O for i in range(0,self.times): O for site in sites: O self.name = site O self.html=SendRequest() # This line throws an error self.html=self.SendRequest() -- Piet van Oostrum p...@cs.uu.nl URL: http://pietvanoostrum.com [PGP 8DAE142BE17999C4] Private email: p...@vanoostrum.org -- http://mail.python.org/mailman/listinfo/python-list
Re: Visual Studio 2005 build of Python 2.4, 2.5 or 2.6
I am a bit lost with all the possible builds of python on Windoze. I am looking for a Visual Studio 2005 build of Python 2.4, 2.5 or 2.6 incl. debug build of the python24.lib e.g. python24_d.lib ? What's the problem with creating one yourself? Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: Battleship style game
Thanks for the tips, everybody. I've cleaned it up, and learned some useful things from your comments and the reading they led to. http://shawnmilo.com/ships/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with os.chdir()
Hello, In order to prevent this type of problems, I alway do the following: import path path = something path = os.path.normpath(path) os.chdir(path) This prevents a lot of problems for me. Regards, Henk Tim Golden m...@timgolden.me.uk wrote in message news:mailman.1646.1236751732.11746.python-l...@python.org... venutaurus...@gmail.com wrote: Hello all, I am writing a python script which has to access deep paths then supported normally by the Windows OS (255). So I am appending \ \?\ to do so. But when I use the path in the above fashion with os.chdir() it is unable to recognize my folder and throwing an error: Traceback (most recent call last): File C:\JPDump\test.py, line 31, in module renameStubs(file) File C:\JPDump\test.py, line 15, in renameStubs os.chdir (path) WindowsError: [Error 123] The filename, directory name, or volume label syntax is incorrect: '\\?\\C:\\TestDataSet\ \Many_Files_1_1KB_FIles\\001_0009_1000 FILES\\' The value of my path variable is \?\C:\TestDataSet\Many_Files_1_1KB_FIles\001_0009_1000 FILES\ There need to be two backslashes at the beginning: \\?\C:\TEST.FILES\ Note the double backslash before the question mark. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Stopping SocketServer on Python 2.5
On 2009-03-11 04:36:29 +, Mark Tolonen metolone+gm...@gmail.com said: David George d...@eatmyhat.co.uk wrote in message news:00150e67$0$27956$c3e8...@news.astraweb.com... Hi guys, I've been developing some code for a university project using Python. We've been working on an existing codebase, cleaning it up and removing dead wood. We decided to make some changes to internal message handling by using a SocketServer, which worked great when we were using 2.6, as we could simply call its shutdown() method when we wanted to stop it from 'serving forever'. Unfortunately, we've now needed to downgrade to python 2.5 to accomodate the libtorrent python bindings we need to use as part of the project. So, my question is, is there any way to stop a SocketServer that's been told to server forever in python 2.5? Sure, derive a class from one of the classes in SocketServer, and override the methods that implement the shutdown behavior in 2.6. -Mark Based on what you guys have said i've had a look at the code for serve_forever() in both 2.5 and 2.6, and tried to create my own derived class in this manner: class MBThreadingTCPServer(SocketServer.ThreadingTCPServer): def __init__(self, address_tuple, handler): SocketServer.ThreadingTCPServer.__init__(self, address_tuple, handler) self.__serving = True def serve_forever(self): while self.__serving: SocketServer.ThreadingTCPServer.handle_request(self) def shutdown(self): self.__serving = False Don't worry about the MB thing, it's just related to the name of our project. I don't think i've done this right, but i've tried to implement the serve_forever() functionality in my derived class, and also add the shutdown() method so i can stop it. Does this appear to be the right way to do things? Cheers, Dave -- http://mail.python.org/mailman/listinfo/python-list
Re: Stopping SocketServer on Python 2.5
On Mar 11, 12:28 pm, David George wrote: On 2009-03-11 04:36:29 +, Mark Tolonen metolone+gm...@gmail.com said: David George d...@eatmyhat.co.uk wrote in message news:00150e67$0$27956$c3e8...@news.astraweb.com... Hi guys, I've been developing some code for a university project using Python. We've been working on an existing codebase, cleaning it up and removing dead wood. We decided to make some changes to internal message handling by using a SocketServer, which worked great when we were using 2.6, as we could simply call its shutdown() method when we wanted to stop it from 'serving forever'. Unfortunately, we've now needed to downgrade to python 2.5 to accomodate the libtorrent python bindings we need to use as part of the project. So, my question is, is there any way to stop a SocketServer that's been told to server forever in python 2.5? Sure, derive a class from one of the classes in SocketServer, and override the methods that implement the shutdown behavior in 2.6. -Mark Based on what you guys have said i've had a look at the code for serve_forever() in both 2.5 and 2.6, and tried to create my own derived class in this manner: class MBThreadingTCPServer(SocketServer.ThreadingTCPServer): def __init__(self, address_tuple, handler): SocketServer.ThreadingTCPServer.__init__(self, address_tuple, handler) self.__serving = True def serve_forever(self): while self.__serving: SocketServer.ThreadingTCPServer.handle_request(self) def shutdown(self): self.__serving = False Don't worry about the MB thing, it's just related to the name of our project. I don't think i've done this right, but i've tried to implement the serve_forever() functionality in my derived class, and also add the shutdown() method so i can stop it. Does this appear to be the right way to do things? Cheers, Dave More or less what I would do, though you should be able to call self.handle_request. It's worth noting that handle_request generally calls a blocking socket method, which means your self.__serving check only happens the next time it handles a request. ~G -- http://mail.python.org/mailman/listinfo/python-list
Re: calling class methods from class methods, help?
On Mar 11, 11:00 pm, Piet van Oostrum p...@cs.uu.nl wrote: self.html=self.SendRequest() -- Thank you, everyone, for the help. Appreciate that. Piet van Oostrum p...@cs.uu.nl URL:http://pietvanoostrum.com[PGP 8DAE142BE17999C4] Private email: p...@vanoostrum.org- Hide quoted text - - Show quoted text - -- http://mail.python.org/mailman/listinfo/python-list
Re: Stopping SocketServer on Python 2.5
On 2009-03-11 19:02:26 +, Falcolas garri...@gmail.com said: On Mar 11, 12:28 pm, David George wrote: On 2009-03-11 04:36:29 +, Mark Tolonen metolone+gm...@gmail.com s aid: David George d...@eatmyhat.co.uk wrote in message news:00150e67$0$27956$c3e8...@news.astraweb.com... Hi guys, I've been developing some code for a university project using Python. We've been working on an existing codebase, cleaning it up and removin g dead wood. We decided to make some changes to internal message handling by using a SocketServer, which worked great when we were using 2.6, as we could simply call its shutdown() method when we wanted to stop it from 'serving forever'. Unfortunately, we've now needed to downgrade to python 2.5 to accomodate the libtorrent python bindings we need to use as part of th e project. So, my question is, is there any way to stop a SocketServer that's bee n told to server forever in python 2.5? Sure, derive a class from one of the classes in SocketServer, and override the methods that implement the shutdown behavior in 2.6. -Mark Based on what you guys have said i've had a look at the code for serve_forever() in both 2.5 and 2.6, and tried to create my own derived class in this manner: class MBThreadingTCPServer(SocketServer.ThreadingTCPServer): def __init__(self, address_tuple, handler): SocketServer.ThreadingTCPServer.__init__(self, address_tu ple, handler) self.__serving = True def serve_forever(self): while self.__serving: SocketServer.ThreadingTCPServer.handle_request(se lf) def shutdown(self): self.__serving = False Don't worry about the MB thing, it's just related to the name of our proj ect. I don't think i've done this right, but i've tried to implement the serve_forever() functionality in my derived class, and also add the shutdown() method so i can stop it. Does this appear to be the right way to do things? Cheers, Dave More or less what I would do, though you should be able to call self.handle_request. It's worth noting that handle_request generally calls a blocking socket method, which means your self.__serving check only happens the next time it handles a request. ~G Yes, i've just noticed that this is the problem ... i've updated the code to work like this: class MBTCPServer(SocketServer.TCPServer): def serve_until_stopped(self): self.serving = True self.has_shutdown = False while self.serving: self.handle_request() self.has_shutdown = True def shutdown(self): self.serving = False Simply calling the base class constructor when i build it (i believe this is inferred). Again, problem here is the issue of being unable to kill the server while it's waiting on a request. In theory, i could force it to continue by sending some sort of junk data with the method i use to stop the server, but that seems a bit hacky, don't you think? Cheers, Dave -- http://mail.python.org/mailman/listinfo/python-list
Re: functions - where to store them
plsulliv...@gmail.com wrote: I have several functions which I would like to store in a different directory so several programs can use them. I can't seem to find much information about how to call a function if the function code is not actually in the script itself. The problem: do I have to cut and paste functions into a script or can I store them in a directory and call them from a script in another directory. If the latter is possible, how is this done? Thanks. After you follow the other suggestions of read about 'module' and 'package' If you want a module or package available to *all* programs (that run with a particular version/installation of Python), you can put your module or packages in the 'site-packages' directory. On Windows, this is a subdirectory of pythonxy/lib/ import sys; sys.path ['C:\\Programs\\Python30\\Lib\\idlelib', 'C:\\WINDOWS\\system32\\python30.zip', 'C:\\Programs\\Python30\\DLLs', 'C:\\Programs\\Python30\\lib', 'C:\\Programs\\Python30\\lib\\plat-win', 'C:\\Programs\\Python30', 'C:\\Programs\\Python30\\lib\\site-packages'] -- http://mail.python.org/mailman/listinfo/python-list
Re: Visual Studio 2005 build of Python 2.4, 2.5 or 2.6
paul.baum...@googlemail.com wrote: Hello, I am a bit lost with all the possible builds of python on Windoze. I am looking for a Visual Studio 2005 build of Python 2.4, 2.5 or 2.6 incl. debug build of the python24.lib e.g. python24_d.lib ? Are you looking for pre-built binaries or the build files to make your own? PSF distributes 2.? to 2.5 binaries built with VS2003 and 2.6+ binaries built with VS2008 (I believe) and the corresponding build files. People have built with VS2005, but you will have to search harder (try Google). -- http://mail.python.org/mailman/listinfo/python-list
Re: calling class methods from class methods, help?
Oltmans wrote: I've a multithreaded program in which I've to call class methods from class methods. Here is how my code look like (excluding imports),. Any help is highly appreciated. #!/usr/bin/env python class Requests(Thread): def __init__(self, times): Thread.__init__(self) self.times=times self.name='' def run(self): sites=['example.com','example1.com'] for i in range(0,self.times): for site in sites: self.name = site self.html=SendRequest() # This line throws an error You should (almost) always display the error traceback. I suspect NameError: global 'SendRequest' not found. You need Requests.SendRequest. but... def SendRequest(self): #A class method If it were, then call the parameter 'cls', not 'self'. But it is not a classmethod without @classmethod decorator. but... # it sends a request to website using mechanize library Does this need to send the class rather than instance object to the website? If not, better to leave it an instance method and use self.SendRequest above. If the request uses instance variables, then it *must* be an instance method! def startThis(times,reqs): threads=[] for i in range (0,reqs): owner=Requests(times) owner.start() threads.append(owner) for thread in threads: thread.join() if __name__==__main__: #I want to create 2 threads, each of them will execute twice. At least that is the intention. startThis(2,2) -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Visual Studio 2005 build of Python 2.4, 2.5 or 2.6
Terry Reedy wrote: Are you looking for pre-built binaries or the build files to make your own? PSF distributes 2.? to 2.5 binaries built with VS2003 and 2.6+ binaries built with VS2008 (I believe) and the corresponding build files. People have built with VS2005, but you will have to search harder (try Google). You are correct, Terry. The source tar.gz contain a build directory for VS 2005 in PCBuild8 (Py 2.5) or PC/VS8.0/ (2.6, 3.0). You can easily build your own Python interpreter. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: Why is lambda allowed as a key in a dict?
On Mar 10, 1:39 pm, Paul Rubin http://phr...@nospam.invalid wrote: Craig Allen callen...@gmail.com writes: it raises an interesting question about why doesn't it. I can think of practical answers to that, obviously, but in principle, if a function compiles to exactly the same byte code, you obviously do not need two copies of it, and like strings shouldn't an identical function have the same id? Identical strings don't necessarily have the same id: a = a*1000 b = a*1000 id(a),id(b) (137143648, 137144680) a==b True interesting, I thought they were supposed to. -- http://mail.python.org/mailman/listinfo/python-list
Re: strange problem with Py2exe
On Mar 11, 10:37 am, sf409...@gmail.com wrote: Hello all, in the past I've used Py2exe without any problem, but now I have this strange difficulty. In my computer I have python 2.6, py2exe for python 2.6 and the distutils, but when I do: from distutils.core import setup import py2exe setup(console=['hello.py']) ( like written in: http://www.py2exe.org/index.cgi/Tutorial) at the end (at the command 'setup') all exits from python and I am again in DOS. (The same occurs when I use a file: e.g. python 1.py) Where do I go wrong? Thanks I think the problem is w/ Python 2.6--see this comment: http://www.nabble.com/Re%3A-Python-2.6-and-py2exe---the-exe-crashes-on-vista-p21658057.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Why is lambda allowed as a key in a dict?
On Mar 11, 3:40 pm, Craig Allen callen...@gmail.com wrote: On Mar 10, 1:39 pm, Paul Rubin http://phr...@nospam.invalid wrote: Craig Allen callen...@gmail.com writes: it raises an interesting question about why doesn't it. I can think of practical answers to that, obviously, but in principle, if a function compiles to exactly the same byte code, you obviously do not need two copies of it, and like strings shouldn't an identical function have the same id? Identical strings don't necessarily have the same id: a = a*1000 b = a*1000 id(a),id(b) (137143648, 137144680) a==b True interesting, I thought they were supposed to. Are you joking? two objects == two ids. if not i would dump Python forever! Do you think Vector(0,0,0) and Vector(0,0,0) would have the same id? -- http://mail.python.org/mailman/listinfo/python-list
Re: strange problem with Py2exe
On Mar 11, 9:37 am, sf409...@gmail.com wrote: Hello all, in the past I've used Py2exe without any problem, but now I have this strange difficulty. In my computer I have python 2.6, py2exe for python 2.6 and the distutils, but when I do: from distutils.core import setup import py2exe setup(console=['hello.py']) ( like written in: http://www.py2exe.org/index.cgi/Tutorial) at the end (at the command 'setup') all exits from python and I am again in DOS. (The same occurs when I use a file: e.g. python 1.py) Where do I go wrong? Thanks Re-post to the py2exe mailing list, but CM is probably correct. The last I heard, compiling with 2.6 had some added complications. You could also check the archives of this list AND the py2exe list. I'm pretty sure there have been posts on this multiple times within a few weeks of 2.6's release. Here's a link to py2exe's list and archives: https://lists.sourceforge.net/lists/listinfo/py2exe-users Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: Why is lambda allowed as a key in a dict?
r wrote: On Mar 11, 3:40 pm, Craig Allen callen...@gmail.com wrote: On Mar 10, 1:39 pm, Paul Rubin http://phr...@nospam.invalid wrote: Identical strings don't necessarily have the same id: A more verbose way to put this is Requesting a string with a value that is the same an an existing string does not necessarily result in reuse of the existing string but mey result in creation of a new, duplicate string. a = a*1000 b = a*1000 id(a),id(b) (137143648, 137144680) a==b True interesting, I thought they were supposed to. Reuse of immutable objects is entirely up to the implementation. CPython reuses small ints and identifier-like strings that it 'expects' would otherwise be duplicated. There is no reason to expect that the programmer will ask for 'a'*1000 again instead of explicitly reusing the existing object. On the other hand, identifiers are almost always reused, often multiple times.. (Non-reuse may even by a bug!.) Are you joking? two objects == two ids. if not i would dump Python forever! Me too, but see rewording. Do you think Vector(0,0,0) and Vector(0,0,0) would have the same id? If the instances of Vector are immutable, possibly yes. If Vector(0,0,0) were typically called hundreds of times within a program, it might be worthwhile for the Vector class to pre-allocate one instance with that value and return it for each of the hundreds of calls. That would be an implementation decision, which could be changed with experience. Similarly, if one is populating a LARGE structure with duplicate values, it may be worthwhile to cache values that are not cached by the interpreter. Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: Why is lambda allowed as a key in a dict?
On Mar 11, 4:32 pm, Terry Reedy tjre...@udel.edu wrote: Similarly, if one is populating a LARGE structure with duplicate values, it may be worthwhile to cache values that are not cached by the interpreter. Thanks Terry, Actually i had no idea how Python handled strings(immutables) internally but after considering this for 1 second it makes complete sense. I have never compared two like strings to see what the outcome will be because i never needed to. Just like i never used a lambda as a dict key and probably never will. But these things are good to know. When i learn something new (like Python) i tend to jump right in and learn by trial and error -- sometimes it feels more like trial by fire -- that is how i have learned the Python language. I still have not read Guido's tutorial from front to back (not proud of that BTW), actually i haven't read but maybe 10% of it! I think now would be a good time to read the entire tut from my field experienced level and fill in all the (maybe mostly insignificant (but very important)) details of how python handles data internally. This should give me a much better insight of the language and will most defiantly improve my code writing skills. Sorry Graig for my misinterpretation of your post. And thanks Terry for the great explanation. -- http://mail.python.org/mailman/listinfo/python-list
[ANN] Pyjamas 0.5 Web Widget Set and python-to-javascript Compiler released
This is the release of Pyjamas 0.5, a python-to-javascript compiler with an AJAX Web Widget set, for creating python desktop-like applications that run in all major web browsers. http://pyjs.org Pyjamas is NOT another AJAX framework where the widgets are predefined, fixed and inflexible. Thanks to the compiler, Pyjamas is a dynamic framework's framework where developers can define their own web framework, in Python classes and modules instead of being forced to write code in pure Javascript. The Pyjamas Web Widget set makes it possible for users to develop Rich Media Applications as if they were writing desktop applications, without having to know any Javascript, or even very much HTML. Developing applications using Pyjamas is much more similar to and has far more in common with developing PyQT4 or PyGtk2 applications than it has with traditional AJAX web development. Yet, thanks to the applications actually running in a Web Browser, developers get the best of both worlds. For those people who prefer to stick to true Desktop development, or who prefer to debug applications in Python rather than rely on the debugging features of Web Browser engines, there is the sister project, Pyjamas-Desktop - http://pyjd.org Pyjamas-Desktop allows the same application source code to be run, unmodified, in both the web browser and as a desktop application. The 0.5 release is a significant functionality update. Additions have been made to the core python-to-javascript compiler such as support for exceptions (try / except), lambda, and a debug option to track and print run-time stack traces, in cases where the deployment of a javascript script debugger is difficult or impossible (IE6 running under Wine). Also, the code-generator has undergone a reorganisation, and now has much better support for local and global variable, function, class and module scopes. Support for Dynamic loading of modules has been added, where each python module now has its own javascript (compiled) cache file. This makes it possible to share the modules across the 5 supported platforms, bringing a dramatic reduction in the amount of compiled javascript that is deployed. Also, support for dynamic module loading makes it much clearer how developers may interact with pyjamas-compiled modules from existing applications which already have an AJAX framework in place. Users of previous versions of Pyjamas should note that the UI widget classes have undergone a restructuring, reducing the 4,000 line ui.py into 70 separate small modules. The reorganisation allows applications to undergo a significant reduction in the amount of compiled javascript, by only importing UI Modules that are needed. Reorganisation scripts can be found in contrib/pyjamas_0.4_0.5_upgrade/ that will help in the conversion of existing applications. Also, to make developers' lives easier in both the testing and deployment of pyjamas applications, buildout has been added, along with a standard setup.py. Finally, an experiment is included, which is the beginnings of a way to speed up the execution of standard python, in a similar way to Python-Psyco. The combination of the pyjs python-to-javascript compiler and PyV8 - http://code.google.com/p/pyv8 - becomes a JIT compiler that supports both ARM and i386 assembler. The use of the Google V8 JIT compiler provides a means to dynamically load standard c-based python modules, and the use of pyjs means that the intermediate javascript is actually still human-readable. These are two distinct advantage over pypy, and the third advantage is that the direct translation, instead of going through an intermediary (RPython) means that the full dynamic semantics of the python language are reflected into javascript, and still available. Downloads are available at: http://code.google.com/p/pyjamas/downloads/list https://sourceforge.net/project/platformdownload.php?group_id=239074 http://pypi.python.org/pypi/Pyjamas/0.5 Pyjamas Book is at: http://pyjs.org/book/output/Bookreader.html#Getting%20Started Links to other documentation is on the main site: http://pyjs.org Development and discussion is at: http://groups.google.com/group/pyjamas-dev Subversion Source repository is at: https://sourceforge.net/scm/?type=svngroup_id=239074 IRC Channel is: #pyjamas at irc.freenode.net IRC Logs (thanks to Tim Riker) at: http://ibot.rikers.org/%23pyjamas -- http://mail.python.org/mailman/listinfo/python-list
Re: Stopping SocketServer on Python 2.5
On Mar 11, 1:11 pm, David George d...@eatmyhat.co.uk wrote: Again, problem here is the issue of being unable to kill the server while it's waiting on a request. In theory, i could force it to continue by sending some sort of junk data with the method i use to stop the server, but that seems a bit hacky, don't you think? Dave, I agree, it does. I'm in a bit over my head at this point, but does setting self.socket.settimeout(0.5) cause the call to get_request (and thus self.socket.accept()) to timeout? If so, that may be your ticket, since socket.error exceptions are already caught by the TCPServer class. ~G -- http://mail.python.org/mailman/listinfo/python-list
An error in threading.py?
Hi, all. I'm trying to use Mechanize in a multithreaded program--
purpose of which is to fill out a form on a website using concurrent
threads. Guys, trust me I've spent a lot of time to figure out the
problem but I'm completed puzzled. Firstly, I've listed the errors and
then the program listing (with imports omitted)
Error:
Traceback (most recent call last):
File C:\Python25\lib\threading.py, line 460, in __bootstrap
self.run()
File tmechanize.py, line 21, in run
with lock:
NameError: global name 'lock' is not defined
Program:
-
#!/usr/bin/env python
requestNumber=0
class Requests(Thread):
def __init__(self, times):
Thread.__init__(self)
self.times=times
self.html=' '
self.requestTime={}
self.starttime=0
self.endtime=0
self.br= Browser()
def run(self):
for i in range(0,self.times):
self.starttime=time.clock()
self.SendRequest()
self.endtime=time.clock()
with lock:
global requestNumber
requestNumber += 1
print 'locking the time'
self.requestTime[requestNumber]=self.endtime -
self.starttime
def SendRequest(self): #A class method
# it sends a request to website using mechanize library
self.br.add_password(https://example.com/admin;, admin,
admin)
res=self.br.open(https://example.com/admin;)
print 'Successfully loggedin '
self.html=res.read()
print 'Filling in the form'
self.br.select_form(name=formOne)
self.br[textbox]=www.google.com
self.br[textBox1]='www.example.com'
self.br[users[0].firstName]=firstName
self.br[users[0].lastName]=LastName
self.br[users[0].emailAddress]=fn...@example.com
print 'Submitting the form'
resp=self.br.submit()
self.html=resp.read()
def startThis(times,reqs):
#print 'Threads ='+str(times)
#print 'Reques/Thread ='+ str(maxReqs)
threads=[]
for i in range (0,reqs):
owner=Requests(times)
owner.start()
threads.append(owner)
for thread in threads:
thread.join()
if __name__==__main__:
#I want to create 2 threads, each of them will execute twice. At
least that is the intention.
startThis(2,2)
--
http://mail.python.org/mailman/listinfo/python-list
Re: An error in threading.py?
On 2009-03-11 17:15, Oltmans wrote: Hi, all. I'm trying to use Mechanize in a multithreaded program-- purpose of which is to fill out a form on a website using concurrent threads. Guys, trust me I've spent a lot of time to figure out the problem but I'm completed puzzled. Firstly, I've listed the errors and then the program listing (with imports omitted) Why omit the imports? Error: Traceback (most recent call last): File C:\Python25\lib\threading.py, line 460, in __bootstrap self.run() File tmechanize.py, line 21, in run with lock: NameError: global name 'lock' is not defined The problem is in tmechanize.py, not threading.py. You forgot to actually make the lock object. -- 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: An error in threading.py?
On Mar 11, 4:15 pm, Oltmans rolf.oltm...@gmail.com wrote: Hi, all. I'm trying to use Mechanize in a multithreaded program-- purpose of which is to fill out a form on a website using concurrent threads. Guys, trust me I've spent a lot of time to figure out the problem but I'm completed puzzled. Firstly, I've listed the errors and then the program listing (with imports omitted) Error: Traceback (most recent call last): File C:\Python25\lib\threading.py, line 460, in __bootstrap self.run() File tmechanize.py, line 21, in run with lock: NameError: global name 'lock' is not defined Time for the obvious question - where do you define lock? If you're trying to put a mutex around your increment, you need a lock pre- defined to use it. So, you'll need to add something like lock = Lock () near the top, with a global lock before you try using it in your with statement. If you try using Lock() directly in the thread, you'll create a new lock per thread, thus defeating the purpose of trying to lock in the first place. ~G -- http://mail.python.org/mailman/listinfo/python-list
Can python (CPython) and IPython coexist normally on the same computer ?
I know I could just try to install it and see, but I've got my configuration just right, so I don't want to mess it up (maybe) with IPython. Also, can someone please point me to some page where I can find differences between C and I Python. I'm learning Python using Learning python (figures :), so I was wondering - what are the practical differences between the two ? If I start with IPython, will I be able to switch to CPython later, or will I have trouble with that ? Does IPython supports standard libraries like numpy and matplotlib ? Greetings to all of you who actually read all of this, and got this far :) Hope all is well, Scoop -- http://mail.python.org/mailman/listinfo/python-list
Re: Behaviour of os.rename()
On Wed, 11 Mar 2009 14:35:01 -, venutaurus...@gmail.com venutaurus...@gmail.com wrote: On Mar 11, 7:20 pm, Tim Golden m...@timgolden.me.uk wrote: venutaurus...@gmail.com wrote: Hello all, I got a suspicion on the behaviour of os.rename (src,dst).If the src is the path of a file and dst is a new filename this os.rename() function is infact creating a new file with the dst name in the current working directory and leaving the src as it is. Is this the expected behavior? Yes, though part of this is Windows being bloody-minded. It is always the case that if you don't give a rooted pathname (one starting with r\) to pretty much any built-in function expecting a filename (in pretty much any language, come to that), the pathname will be assumed to be relative to the current working directory. Windows complicates this by having a current drive too, and per-drive working directories to go with them, so file.txt, D:file.txt, r\path\to\file.txt and rD:\path\to\file.txt could well all be different files in different places. If i want the actual source file in its orignal location to be renamed without doing os.chdir() to that directory, is that possible? Yes. Give the full pathname, with drive letters and everything. os.rename on windows calls the Windows MoveFile API: http://msdn.microsoft.com/en-us/library/aa365239(VS.85).aspx Have a look at the details on that page to see what the limitations / actions are. But remember -- as I've indicated elsewhere -- to use the ur\\?\c:\... form of the file names. And let us know if that works :) That actually was an illustration. As you've told in another chain, it isn't working even after appending \\?\ Tim's point was that you should read the MS documentation. To be fair it doesn't mention doing a copy and (failing to) delete instead of moving the file when doing cross-volume renames, but that's what the OS will have to do. -- Rhodri James *-* Wildebeeste Herder to the Masses -- http://mail.python.org/mailman/listinfo/python-list
Re: Can python (CPython) and IPython coexist normally on the same computer ?
On Wed, Mar 11, 2009 at 4:17 PM, scoop sc...@invalid.gmail.com wrote: I know I could just try to install it and see, but I've got my configuration just right, so I don't want to mess it up (maybe) with IPython. Also, can someone please point me to some page where I can find differences between C and I Python. I'm learning Python using Learning python (figures :), so I was wondering - what are the practical differences between the two ? If I start with IPython, will I be able to switch to CPython later, or will I have trouble with that ? Does IPython supports standard libraries like numpy and matplotlib ? ipython is just an improved Python shell (interactive interpreter/REPL), not an alternate Python implementation. As far as I know, it is based on CPython and normally requires CPython to operate. Cheers, Chris -- I have a blog: http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Can python (CPython) and IPython coexist normally on the same computer ?
On Mar 12, 10:17 am, scoop sc...@invalid.gmail.com wrote: I know I could just try to install it and see, but I've got my configuration just right, so I don't want to mess it up (maybe) with IPython. Also, can someone please point me to some page where I can find differences between C and I Python. I'm learning Python using Learning python (figures :), so I was wondering - what are the practical differences between the two ? If I start with IPython, will I be able to switch to CPython later, or will I have trouble with that ? Does IPython supports standard libraries like numpy and matplotlib ? Do you mean this IPython: http://en.wikipedia.org/wiki/IPython or do you mean Iron Python: http://en.wikipedia.org/wiki/IronPython IPython is a front-end for the CPython interpretor, as is IDLE, etc. differences, switch to and supports standard libraries are rather meaningless questions. Iron Python is an alternative implementation of a Python interpreter, whose target is the .NET/Mono platform. It supports standard libraries written in Python. I believe there is a project called Ironclad whose aim is to be able to use libraries written in C/C++ (like numpy) but this is not available yet. HTH John -- http://mail.python.org/mailman/listinfo/python-list
Re: factory functions methods
On Mar 11, 12:52 pm, Piet van Oostrum p...@cs.uu.nl wrote:
Aaron Brady castiro...@gmail.com (AB) wrote:
AB Hello,
AB I am creating a container. I have some types which are built to be
AB members of the container. The members need to know which container
AB they are in, as they call methods on it, such as finding other
AB members. I want help with the syntax to create the members.
AB Currently, the container has to be a parameter to the instantiation
AB methods. I want the option to create members with attribute syntax
AB instead.
AB Currently, I have:
AB cA= Container( )
AB obA= SomeType( cA )
AB obB= OtherType( cA, otherarg )
AB I want:
AB cA= Container( )
AB obA= cA.SomeType( )
AB obB= cA.OtherType( otherarg )
AB What are my options?
AB P.S. The container and members are C extension types, not pure Python.
You could do something like this (translated to C)
class Container(object):
def __init__(self):
self.items = []
def add(self, item):
self.items.append(item)
def SomeType(self):
newobj = SomeType()
self.add(newobj)
def OtherType(self, arg):
newobj = OtherType(arg)
self.add(newobj)
class SomeType(object):
def __init__(self):
pass
class OtherType(SomeType):
def __init__(self, arg):
SomeType.__init__(self)
self.x = arg
cA = Container()
obA = cA.SomeType()
obB = cA.OtherType(5)
print cA.items
--
Piet van Oostrum p...@cs.uu.nl
URL:http://pietvanoostrum.com[PGP 8DAE142BE17999C4]
Private email: p...@vanoostrum.org
I like it. It's a combination of andrew's suggestion, and what I've
been considering. What I did was (approximately):
class Container:
def __init__( self ):
self.SomeType= type( 'BoundSomeType', (SomeType,),
{ '__new__': custom_new } )
self.OtherType= type( 'BoundOtherType', (OtherType,),
{ '__new__': custom_new } )
cA = Container()
obA = cA.SomeType()
obB = cA.OtherType(5)
It has the advantage that 'cA.SomeType' is a subclass of SomeType;
specifically, that it responds in kind to SomeType. It's a bit
heavyweight on the consumption of resources. 'custom_new' actually
returns an instance of the base.
I am looking for ways to allow user-defined subclasses.
class CustomType( cA.MemberBase ):
...
obC= CustomType( ) #unusable in other instances
-or-
class CustomType( MemberBase ):
...
obC= cA.CustomType( ) #explicit member or dynamic (Gabriel)?
#of base (Piet) or instance (andrew)?
-or-
class CustomType( MemberBase ):
...
obC= CustomType( ) #disallow as attribute creation
Or, some combination of -2- and -1- or -3-.
--
http://mail.python.org/mailman/listinfo/python-list
Question on periods in strings
Hello, this is my first time posting to the list, but my curiosity here is great. I was randomly toying with file writes and I ran into something that seemed quite odd to me. When a period is in a string, file write takes about double the time. I saw similar things with newlines, but I figured that was because it was doing a lookup on the escape-d n. All other symbols seem to not have this problem, so I'm curious what's special about periods that they take so much longer to write to file. #Done in python 2.6.1 #runs in 5.8 seconds. from datetime import datetime testvar2='9a00' startTime = datetime.now() for var in range(1000): filehandle.write(testvar2) filehandle.close() print (datetime.now() - startTime) #runs in 10.9 seconds. from datetime import datetime testvar2='9.00' startTime = datetime.now() for var in range(1000): filehandle.write(testvar2) filehandle.close() print (datetime.now() - startTime) Thank you to any who answer for assuaging my curiosity. __ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __-- http://mail.python.org/mailman/listinfo/python-list
Re: Strange array.array performance
In article mailman.324.1235098726.11746.python-l...@python.org,
Maxim Khitrov mkhit...@gmail.com wrote:
Interesting, though I'm not able to replicate that last outcome. The
string method is still the fastest on my machine. Furthermore, it
looks like the order in which you do the multiplication also matters -
(8 * size * '\0') is faster than ('\0' * 8 * size).
That's not surprising -- the latter does two string multiplication
operations, which I would expect to be slower than int multiplication.
--
Aahz (a...@pythoncraft.com) * http://www.pythoncraft.com/
All problems in computer science can be solved by another level of
indirection. --Butler Lampson
--
http://mail.python.org/mailman/listinfo/python-list
Re: Can python (CPython) and IPython coexist normally on the same computer ?
On Wed, 11 Mar 2009 17:20:09 -0700 (PDT), John Machin sjmac...@lexicon.net wrote: Do you mean this IPython: http://en.wikipedia.org/wiki/IPython or do you mean Iron Python: http://en.wikipedia.org/wiki/IronPython IPython is a front-end for the CPython interpretor, as is IDLE, etc. differences, switch to and supports standard libraries are rather meaningless questions. Iron Python is an alternative implementation of a Python interpreter, whose target is the .NET/Mono platform. It supports standard libraries written in Python. I believe there is a project called Ironclad whose aim is to be able to use libraries written in C/C++ (like numpy) but this is not available yet. Oh, sorry. I didn't know Ipython existed, so I (rather foolishly) abbreviated Iron Python into IPython. So generally, yes, my questions were aimed at Iron python. So what you're saying is there are still some complications about using numpy and matplotlib in Iron ? scoop -- http://mail.python.org/mailman/listinfo/python-list
Minimilistic Python on Linux?
I'm working on a minimilistic linux project and would like to include Python. However, since Python is around 17MB (compressed) and previous releases of this linux distro are under 100MB (compressed) standard Python releases are much to large. I just need the runtime libs of Python, the absoulute bare necesties. I do not need any kind of GUI. Also, with the standard library, I would like to remove all the files execpt the ones Python needs to run and only add new ones as required. What can I strip off Python? Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Question on periods in strings
En Wed, 11 Mar 2009 22:35:22 -0200, Philip Bloom pbl...@crystald.com escribió: Hello, this is my first time posting to the list, but my curiosity here is great. Welcome! I was randomly toying with file writes and I ran into something that seemed quite odd to me. When a period is in a string, file write takes about double the time. I saw similar things with newlines, but I figured that was because it was doing a lookup on the escape-d n. All other symbols seem to not have this problem, so I'm curious what's special about periods that they take so much longer to write to file. I doubt the period is actually the culprit. There are lots of other variables - like disk and memory fragmentation, cpu load, ... You omitted part of your code: do you use the same filename on both tests? (Note that starting with an empty file is not the same as using a preallocated file). Also, do you always run both scripts in the same order? (maybe the second always runs faster, no matter which one is it). Also note that you're measuring the time to allocate a list containing ten million integer objects (the range() call). xrange is a less perturbing option. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
RE: Question on periods in strings
Thanks for the welcome :)
You're right. Here's with the missed line (I was cutting out commented parts).
Hopefully these are all cut/paste-able.
#test A
#runs in 5.8 seconds.
from datetime import datetime
testvar2='9a00'
startTime = datetime.now()
filehandle=open('testwriting.txt','w')
for var in range(1000):
filehandle.write(testvar2)
filehandle.close()
print (datetime.now() - startTime)
#test B
#runs in 10.9 seconds.
from datetime import datetime
testvar2='9.00'
startTime = datetime.now()
filehandle=open('testwriting.txt','w')
for var in range(1000):
filehandle.write(testvar2)
filehandle.close()
print (datetime.now() - startTime)
I do use the same filename, but I've run the tests in different orders and it's
made no difference. Repeatedly running the same test results in the same
numbers with only minor fluctuations (as would be expected from cache issues).
Ten runs in a row of Test B all result in about 11 seconds each. Ten runs in a
row of Test A all result in about 6 seconds each.
The range is not actually a meaningful adjustment as the time results are
identical switching out xrange (as I believe they should be since in 2.6 range
maps to xrange for the most part according to some of the docs).
#Test C
#runs in 8.9 seconds.
from datetime import datetime
testvar2='9.00'
startTime = datetime.now()
join=[]
filehandle=open('testwriting.txt','w')
for var in range(1000):
join.append(testvar2)
.join(join)
print (datetime.now() - startTime) #3.01 seconds
filehandle.write(.join(join))
filehandle.close()
print (datetime.now() - startTime) #8.9 seconds.
#Test D
#runs in 3.8 seconds.
from datetime import datetime
testvar2='9a00'
startTime = datetime.now()
join=[]
filehandle=open('testwriting.txt','w')
for var in range(1000):
join.append(testvar2)
.join(join)
print (datetime.now() - startTime) #3.09 seconds
filehandle.write(.join(join))
filehandle.close()
print (datetime.now() - startTime) #3.87 seconds.
This is a variation that shows it more noticeably. I do an extra join to
demonstrate that's not taking the time. Effectively nothing is really
different it seems like other than the period. It's all intentionally small
python code since it originated from just seeing what some variations on file
writes might differ in scaling.
-Original Message-
From: python-list-bounces+pbloom=crystald@python.org
[mailto:python-list-bounces+pbloom=crystald@python.org] On Behalf Of
Gabriel Genellina
Sent: Wednesday, March 11, 2009 6:17 PM
To: python-list@python.org
Subject: Re: Question on periods in strings
En Wed, 11 Mar 2009 22:35:22 -0200, Philip Bloom pbl...@crystald.com
escribió:
Hello, this is my first time posting to the list, but my curiosity here
is great.
Welcome!
I was randomly toying with file writes and I ran into something that
seemed quite odd to me. When a period is in a string, file write takes
about double the time. I saw similar things with newlines, but I
figured that was because it was doing a lookup on the escape-d n. All
other symbols seem to not have this problem, so I'm curious what's
special about periods that they take so much longer to write to file.
I doubt the period is actually the culprit. There are lots of other
variables - like disk and memory fragmentation, cpu load, ...
You omitted part of your code: do you use the same filename on both tests?
(Note that starting with an empty file is not the same as using a
preallocated file).
Also, do you always run both scripts in the same order? (maybe the
second always runs faster, no matter which one is it).
Also note that you're measuring the time to allocate a list containing ten
million integer objects (the range() call). xrange is a less perturbing
option.
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
__
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email
__
__
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email
__
--
http://mail.python.org/mailman/listinfo/python-list
Re: Minimilistic Python on Linux?
Royce Wilson schrieb: I'm working on a minimilistic linux project and would like to include Python. However, since Python is around 17MB (compressed) and previous releases of this linux distro are under 100MB (compressed) standard Python releases are much to large. I just need the runtime libs of Python, the absoulute bare necesties. I do not need any kind of GUI. Also, with the standard library, I would like to remove all the files execpt the ones Python needs to run and only add new ones as required. What can I strip off Python? Thanks. I start by stripping off all documentation in Docs/, the Lib/test directory with unit tests, the Tools/ directory with optional stuff and all Windows related code in PC/, PCBuild and PCBuild8. Optional components like bsddb, tk and curses take up some space, too. Last but not least you can put all .py and .pyc files in a zip file. The file must be called /usr/local/lib/python25.zip if sys.prefix is equal to /usr/local. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: Can python (CPython) and IPython coexist normally on the same computer ?
On Mar 12, 11:57 am, scoop sc...@invalid.gmail.com wrote: On Wed, 11 Mar 2009 17:20:09 -0700 (PDT), John Machin sjmac...@lexicon.net wrote: Do you mean this IPython: http://en.wikipedia.org/wiki/IPython or do you mean Iron Python: http://en.wikipedia.org/wiki/IronPython IPython is a front-end for the CPython interpretor, as is IDLE, etc. differences, switch to and supports standard libraries are rather meaningless questions. Iron Python is an alternative implementation of a Python interpreter, whose target is the .NET/Mono platform. It supports standard libraries written in Python. I believe there is a project called Ironclad whose aim is to be able to use libraries written in C/C++ (like numpy) but this is not available yet. Oh, sorry. I didn't know Ipython existed, so I (rather foolishly) abbreviated Iron Python into IPython. So generally, yes, my questions were aimed at Iron python. So what you're saying is there are still some complications about using numpy and matplotlib in Iron ? It seems that your googler is broken. While you are waiting for someone to fix it for you, browse this: http://ironpython.codeplex.com/Wiki/View.aspx?title=FAQreferringTitle=Home and search the rather long page for Numpy (without the quotes). -- http://mail.python.org/mailman/listinfo/python-list
Re: Minimilistic Python on Linux?
En Wed, 11 Mar 2009 23:09:51 -0200, Royce Wilson rww...@gmail.com escribió: I'm working on a minimilistic linux project and would like to include Python. However, since Python is around 17MB (compressed) and previous releases of this linux distro are under 100MB (compressed) standard Python releases are much to large. I just need the runtime libs of Python, the absoulute bare necesties. I do not need any kind of GUI. Also, with the standard library, I would like to remove all the files execpt the ones Python needs to run and only add new ones as required. I think Python doesn't *require* any external module to be able to start. site.py is searched, but may be missing. Probably the interpreter executable alone is enough (but I've never tested it!). Anyway, most Python users would expect all the standard modules to be available, though... part of the usefulness of the language comes from its batteries included. As a test, you might start with a clean install, then invoke the interpreter and look at sys.modules. The modules you find there (those that are not built-in) would be the minimum you need to run Python. On Windows I got this (this was not a true clean install, I just disabled sitecustomize.py and unset my PYTHONSTARTUP variable): UserDict _abcoll abc codecs copy_reg encodings functools genericpath linecache locale ntpath os re site sre_compile sre_constants sre_parse stat types warnings. Most of these are dependencies from site.py; if you omit it, the list is even shorter (just codecs and the encodings package; note that some modules are built-in in Windows but external on Linux). So it looks that -apart from those few modules- you may include as much or as few of the standard library as you want, but consider what your users would expect to be available... -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Minimilistic Python on Linux?
On Wed, Mar 11, 2009 at 9:33 PM, Royce Wilson rww...@gmail.com wrote: Thanks for the quick responses. When I view sys.modules I get this: sre_compile _collections locale _sre functools encodings site operator io __main__ copyreg _weakref abc builtins encodings.cp437 errno sre_constants re encodings.latin_1 collections ntpath nt genericpath stat zipimport _codecs encodings.utf_8 encodings.cp1252 sys codecs _bytesio _thread os.path _functools _locale keyword signal _stringio _weakrefset encodings.aliases sre_parse os _abcoll _fileio Each module is seperated by a space. Can you give me in instructions on how to remove the site.py dependencies? BTW I'm using Python 3.0 as the point is to modernize linux. On Wed, Mar 11, 2009 at 9:02 PM, Gabriel Genellina gagsl-...@yahoo.com.ar wrote: En Wed, 11 Mar 2009 23:09:51 -0200, Royce Wilson rww...@gmail.com escribió: I'm working on a minimilistic linux project and would like to include Python. However, since Python is around 17MB (compressed) and previous releases of this linux distro are under 100MB (compressed) standard Python releases are much to large. I just need the runtime libs of Python, the absoulute bare necesties. I do not need any kind of GUI. Also, with the standard library, I would like to remove all the files execpt the ones Python needs to run and only add new ones as required. I think Python doesn't *require* any external module to be able to start. site.py is searched, but may be missing. Probably the interpreter executable alone is enough (but I've never tested it!). Anyway, most Python users would expect all the standard modules to be available, though... part of the usefulness of the language comes from its batteries included. As a test, you might start with a clean install, then invoke the interpreter and look at sys.modules. The modules you find there (those that are not built-in) would be the minimum you need to run Python. On Windows I got this (this was not a true clean install, I just disabled sitecustomize.py and unset my PYTHONSTARTUP variable): UserDict _abcoll abc codecs copy_reg encodings functools genericpath linecache locale ntpath os re site sre_compile sre_constants sre_parse stat types warnings. Most of these are dependencies from site.py; if you omit it, the list is even shorter (just codecs and the encodings package; note that some modules are built-in in Windows but external on Linux). So it looks that -apart from those few modules- you may include as much or as few of the standard library as you want, but consider what your users would expect to be available... -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
