Re: Python is not a good name, should rename to Athon
Gabriel Genellina [EMAIL PROTECTED] wrote: En Tue, 04 Dec 2007 14:49:36 -0300, Dennis Lee Bieber [EMAIL PROTECTED] escribió: How about the cognate: Kulkukan? You meant Kukulkan. If you got it wrong from Apocalypto (Mel Gibson), well, it's just one of many errors in the film... Either way its no good - sounds too much like Kalkul - Hendrik -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Dennis Lee Bieber [EMAIL PROTECTED] wrote: Euler? (most non-tech types would probably think that's a reference to someone who squirts lubricants into the workings of a steam engine) You have just destroyed a long held image in my mind with this horrible homophone - I used to conjure up images of a wise owl. - Hendrik -- For the linguistically challenged: Eule is German for Owl -- http://mail.python.org/mailman/listinfo/python-list
Why did no one tell me about import antigravity?
Python on xkcd: http://xkcd.com/353/ -- Ant. -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting wxPython to work on a Mac
On Dec 4, 9:35 pm, Timothy Smith [EMAIL PROTECTED] wrote: Not sure exactly what I need to do to get wxPython to work on either of my Macs. (One's a notebook running Tiger (OS X 10.4.11), the other a Mac Pro running Leopard (10.5.1.)) I downloaded what should be the latest binary, and it installed without error. So Python comes up as $ python -V Python 2.5.1 $ ls -l /usr/bin/python lrwxr-xr-x 1 root wheel 72 Oct 26 17:59 /usr/bin/python@ - ../../System/Library/Frameworks/Python.framework/Versions/2.5/bin/python $ I set PYTHONPATH to System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5 The Python interpreter works OK, far as I can tell. wx sort of works, but all the functionality is not there. For example, working through the exercises in WxPython in Action by Noel Rappin, I find that while I can create and display a frame, and create an app, stuff like wx.MessageBox() just doesn't work. The same exercises work just fine on a Python 2.5.1 installation on my wife's Windows XP machine. Any help appreciated. (I am obviously both a Python and a Wx beginner. And not much of a Unix expert either. :-) If you don't get an answer here, you should try the wxPython mailing list: http://www.wxpython.org/maillist.php I'm sure they'll be able to help you out (I don't have a Mac, so I don't know). -- http://mail.python.org/mailman/listinfo/python-list
Re: Timezones in python
[EMAIL PROTECTED] wrote: Is there any build in solution in python to handle timezones? My problem is I have to convert +4 time to +0. In the worst case i can just add +4 to the houer but I'm not very happy about that. Another problem is the summer/winter timechange which happen with one week difference. I am looking for something what can convert different timezone to localtime. There's the pytz library [1] [2], which uses the tz database popular on Unix systems, and python-dateutil [3] [4] also includes support for it, among doing other date- and time-related things. Those support time zone names (America/New_York or EST5EDT), and also converting between them. If you only want to convert between +4 and +0, without giving names for them, you don't need them, but I don't know how to do it. Using UTC internally and only converting to other zones when reading data in and displaying it makes things simpler . . [1] http://pytz.sourceforge.net/ [2] http://pypi.python.org/pypi/pytz [3] http://labix.org/python-dateutil [4] http://pypi.python.org/pypi/dateutil -- -- http://mail.python.org/mailman/listinfo/python-list
Re: Standalone USB Web Server and Python Interpeter
Or you can look at http://www.portablepython.com/ L. -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting wxPython to work on a Mac
In article [EMAIL PROTECTED], [EMAIL PROTECTED] wrote: If you don't get an answer here, you should try the wxPython mailing list: http://www.wxpython.org/maillist.php I'm sure they'll be able to help you out (I don't have a Mac, so I don't know). OK, will try there. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Why Python 3?
On 2007-12-05, Chris Gonnerman [EMAIL PROTECTED] wrote: I spent some time today reading about Python 3, and specifically the differences between Python 3 and Python 2, and I was left with a question... why? Why bother to change to Python 3, when the CPython implementation is slower, and probably will be for a while? I think to preserve the smoothness of switching versions, like you do now. As user, you can smoothly 'upgrade' to using new Python features in the pace that you like. Unfortunately for the developers, not all users do that at the same rate and switch to the same sub-set (and that is good, I think). As a result, the developers have to be very backwards compatible. In other words, you can probably run a lot of the Python 1.5.2 code you wrote several years ago using today's Python 2.5. To make that possible, all 1.5.2 stuff is still in today's Python 2.5 interpreter, even though there are not many users that code in 1.5.2 style any more. As you can imagine, this old stuff piles up as we progress in Python versions. Python 3 is the breaking point where the old stuff (that (almost) nobody uses any more, since everybody is using new coding styles) is really gone. That gives room for a new design of the interpreter from the ground up, using today's coding practices and ideas as starting point. For you as user, the transition to Python 3 will probably be smooth too. Unless you stopped reading about new Python versions after 1.5.2, and are still using that old 1.5.2 book as ultimate Python reference, your coding style has changed too towards newer Python versions (and ultimately towards Python 3). In addition, knowing the Python development cycle, as the features of Python 3 become more clear, they will first be implemented in the Python 2.x range for testing and for giving users the chance to already pick up the new coding styles, so by the time the last 2.x version is retired, Python 3 will have (almost) no sudden transitions for you. But... almost all of my old 1.5 code ported painlessly to 2.x. No need for a 1.5to2 script, whereas I see that there is a 2to3 script for Well, Python 3 design is from the ground up, and aimed at the future, so they are quite a few steps ahead of today's coding practice, let alone today's code base (which is still 1.5 compatible as you discovered). To run any form of practical experiments, one needs a way to quickly convert the current code to the new conventions/ideas. Since programmers rather let the computer do boring repetitive tasks, they write a script for the conversions. Since Python is open source, you may also want to experiment with Python 3, and in that case the script is very handy. Imho, existence of such a script today does not automatically mean that you will need to use a script at the moment you (or I) switch to Python 3. programming knowledge. In fact, the things I rarely or never use in Python tend to be those things I find hardest to read (like list comprehensions). Few of the changes along the way have required me to I use them a lot, and they are very powerful. On the other hand, I never use generators, which is probably a loss for me. change how I *write* code; probably the worst was the integer division I think you change the way you write code continuously. I have been programming computers for 20+ years, and are still changing the way I code. change, which I disagreed with, but I went along with the community. Some changes are for your own good, even though you do not realize it now :) For you it is the integer division. For me, I have a problem with new-style classes, where the __eq__ method is already implemented, blurring the difference between 'is' and '=='. Ah well, no language is perfect, and there is probably a very good reason for the change even if I don't see it. (and if there is really none, the change will be undone with Python 4... :) ) I don't see myself using Python 3 for a long time. Probably as long as I can hold out. Where are my goodies? What is my payoff for learning how to write code the new way? I can't see it. Many things seem a lot A lot of the new goodies give you more punch per line, ie less lines to express what you want to calculate. This is good, since the chance making an error is a constant per line, so less lines is less errors. less obvious... like, what was wrong with dict.keys() returning a list? Now it returns some strange object type. In addition, Python is generalizing programming. Why would you want to write a for-loop yourself if you can push the loop into that strange object type? This may look useless, but what actually happens here is that the level of abstraction in programming is raised further (just like the main benefit of switching from eg C to Python is the step up in abstraction (you get eg dictionaries and lists built in, rather than having to program them yourself from struct's for the umpteenth time). Ultimately, when you start
Re: Why did no one tell me about import antigravity?
Adrian Cherry napisał(a): Python on xkcd: http://xkcd.com/353/ Another good comic from xkcd, I'm surprised by the muted response on here. Don't forget to check out the alt. text on the comic Alt text: I wrote 20 short programs in Python yesterday. It was wonderful. Perl, I'm leaving you. XKCD is greatly undervaluated. Overall, it's very intelligent. -- Jarek Zgoda Skype: jzgoda | GTalk: [EMAIL PROTECTED] | voice: +48228430101 We read Knuth so you don't have to. (Tim Peters) -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did no one tell me about import antigravity?
On 5 Dec 2007 10:08:48 GMT, Adrian Cherry [EMAIL PROTECTED] wrote: Ant [EMAIL PROTECTED] wrote in news:52f0eca3-e807-4890-b21d- [EMAIL PROTECTED]: Python on xkcd: http://xkcd.com/353/ Another good comic from xkcd, I'm surprised by the muted response on here. Don't forget to check out the alt. text on the comic Alt text: I wrote 20 short programs in Python yesterday. It was wonderful. Perl, I'm leaving you. +1 QOTW Tim Regards Adrian -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
pl see the beautiful pitcure
pl see the beautiful pitcure http://ribodire.blogspot.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did no one tell me about import antigravity?
Ant wrote: http://xkcd.com/353/ I laughed :) Richard -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting wxPython to work on a Mac
Timothy Smith [EMAIL PROTECTED] (TS) wrote: TS Not sure exactly what I need to do to get wxPython to work on either of TS my Macs. (One's a notebook running Tiger (OS X 10.4.11), the other a Mac TS Pro running Leopard (10.5.1.)) TS I downloaded what should be the latest binary, and it installed without TS error. So Python comes up as TS $ python -V TS Python 2.5.1 TS $ ls -l /usr/bin/python TS lrwxr-xr-x 1 root wheel 72 Oct 26 17:59 /usr/bin/python@ - TS ../../System/Library/Frameworks/Python.framework/Versions/2.5/bin/python TS $ Did you also install the latest wxPython, with the proper version, corresponding to your python version? TS I set PYTHONPATH to TS System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5 Why would you do that? TS The Python interpreter works OK, far as I can tell. wx sort of works, TS but all the functionality is not there. For example, working through the TS exercises in WxPython in Action by Noel Rappin, I find that while I TS can create and display a frame, and create an app, stuff like TS wx.MessageBox() just doesn't work. TS The same exercises work just fine on a Python 2.5.1 installation on my TS wife's Windows XP machine. I tried the example (python_compare.py) and it just works, including the MessageBox, on Tiger with python 2.5.1. I run the in Terminal (pythonw python_compare.py) both with and without your PYTHONPATH. How did you run the examples? -- Piet van Oostrum [EMAIL PROTECTED] URL: http://www.cs.uu.nl/~piet [PGP 8DAE142BE17999C4] Private email: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: How to debug Python program with GUI (Tkinter)?
On Nov 28, 11:18 am, Davy [EMAIL PROTECTED] wrote: Hi all, How todebugPython program with GUI, especially Tkinter? Mydebug environment is PythonWin. For example, when I single step in the program, the step will go to mainloop() and always loop there. How can I know where the program is processed? Any suggestions are welcome! Best regards, Davy Try Winpdb http://www.digitalpeers.com/pythondebugger/ With Winpdb you can pause (break into) and inspect the state of the Python script even if it is doing some C code. Nir -- http://mail.python.org/mailman/listinfo/python-list
Re: Python surpasses Perl in TIOBE index
On Dec 4, 4:08 pm, [EMAIL PROTECTED] wrote: This is *not* an attempt to start yet another Python-versus- AnyOtherProgrammingLanguage flame war, but I thought people might be interested in this: http://www.tiobe.com/tpci.htm Marc I find Ohloh comparisons also useful: http://www.ohloh.net/languages/compare?commit=Updatel0=pythonl0_0=-1l1=rubyl2=perlmeasure=commits What it highlights is that the number of python programmer is growing quicker than the number of perl programmers. -- http://mail.python.org/mailman/listinfo/python-list
Re: Omitting results with id3reader [Beginner]
Ok, just noticed you linked the id3reader. I tested my code and it worked fine. -- http://mail.python.org/mailman/listinfo/python-list
Re: Omitting results with id3reader [Beginner]
On Dec 5, 1:43 pm, Ionis [EMAIL PROTECTED] wrote:
Hey guys, hope you can help me here. I've been playing with python for
about a week or two and I've been reading A Byte Of Python to get me
on my feet. I've decided to write a program which will list all ID3
information in a directory of .mp3 files into a .html file.
The python script I'm using for this, along with album art (Example)
are in the same directory as the music. The output I am getting when
it reads these files is None so I tried to set up a way to get rid
of these results and move onto the next file.
The omitting I'm attempting is within the If statement half way down
the code, easy to find. Could anyone point me in the right direction
on how to stop these None results showing in the result .html file.
Thanks in advance.
==
import os
import id3reader
songartist = str()
songtrack = str()
html_bulkadd = str()
html_start = str(
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd;
html xmlns=http://www.w3.org/1999/xhtml;
head
meta http-equiv=Content-Type content=text/html;
charset=utf-8 /
titleTest Document/title
/head
body
)
html_end = str(
/body
/html
)
output = file(output.html, w)
output.write()
output.write(html_start)
output.close
path =
dirList = os.listdir(path)
for fname in dirList:
songartist = str()
songtrack = str()
id3r = id3reader.Reader(fname)
if id3r.getValue('performer') == None:
break
elif id3r.getValue('title') == None:
break
else:
songartist = id3r.getValue('performer')
songtrack = id3r.getValue('title')
output = file(output.html, a)
output.write(p + str(songartist) + - + str(songtrack)
+ /p\n)
output.close
output = file(output.html, a)
output.write(\n+html_end)
output.close
==
If anyone is curious on the module you can find it
here:http://nedbatchelder.com/code/modules/id3reader.html
Untested code
import os, fnmatch
for each_file in fnmatch.filter(os.listdir(path), '*.mp3'):
id3r = id3reader.Reader(each_file)
if id3r.getValue('performer') and id3r.getValue('title'):
output = open('output.html','ab')
output.write('p%s - %s/p\n' % (id3r.getValue('performer'),
id3r.getValue('title')) )
output.close()
--
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Re: os.access() under windows
[apologies if this double-posts; my email server's playing up] Martin v. Löwis wrote: In a POSIX world, you need read permission on the directory. In Windows, with the bypass-traversal-check privilege, you only need read permission on the directory if you want to list it, not to access a file in the directory. Is it actually possible for GetFileAttributes to ever fail for security reasons? After a little experimentation I can confirm: * R_OK: A process with bypass-traversal-check priv. enabled doesn't need any access to intervening directories in order to get the attributes of a file within them. This means that our existing R_OK result is accurate for any file: if we can get its attributes then you can open the file for reading. * W_OK: If a user has *only* read permission on a file (regardless of the intervening directories), we'll still return True for a W_OK check, as long the file doesn't have its read-only bit set. This means that it's possible for os.access to return True for a W_OK check on a file which can't then be opened for, say, appending. * X_OK: No idea what we should do with this. In short, no further fiddling with the existing GetFileAttributes solution is likely to achieve anything useful. The way to go would be to use an AccessCheck solution which mirrors the approach used on *nix: we ask the OS to check for r/w/x and return whatever it returns. The exact semantics of that (eg on directories) are o/s dependent and you need to refer to the docs for more info. I hope to make time in the next few days to put forward a patch to implement this in posixmodule.c. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: os.access() under windows
Martin v. Löwis wrote: In a POSIX world, you need read permission on the directory. In Windows, with the bypass-traversal-check privilege, you only need read permission on the directory if you want to list it, not to access a file in the directory. Is it actually possible for GetFileAttributes to ever fail for security reasons? After a little experimentation I can confirm: * R_OK: A process with bypass-traversal-check priv. enabled doesn't need any access to intervening directories in order to get the attributes of a file within them. This means that our existing R_OK result is accurate for any file: if we can get its attributes then you can open the file for reading. * W_OK: If a user has *only* read permission on a file (regardless of the intervening directories), we'll still return True for a W_OK check, as long the file doesn't have its read-only bit set. This means that it's possible for os.access to return True for a W_OK check on a file which can't then be opened for, say, appending. * X_OK: No idea what we should do with this. In short, no further fiddling with the existing GetFileAttributes solution is likely to achieve anything useful. The way to go would be to use an AccessCheck solution which mirrors the approach used on *nix: we ask the OS to check for r/w/x and return whatever it returns. The exact semantics of that (eg on directories) are o/s dependent and you need to refer to the docs for more info. I hope to make time in the next few days to put forward a patch to implement this in posixmodule.c. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did no one tell me about import antigravity?
Ant [EMAIL PROTECTED] wrote in news:52f0eca3-e807-4890-b21d- [EMAIL PROTECTED]: Python on xkcd: http://xkcd.com/353/ Another good comic from xkcd, I'm surprised by the muted response on here. Don't forget to check out the alt. text on the comic Alt text: I wrote 20 short programs in Python yesterday. It was wonderful. Perl, I'm leaving you. Regards Adrian -- http://mail.python.org/mailman/listinfo/python-list
Re: Standalone USB Web Server and Python Interpeter
mcl wrote:
I would like to have a USB pen drive, which can execute python scripts
including CGI versions, which I can take to any Windows PC and run
without having to install anything on the PC.
My days of hacking are past so I am looking for something very simple.
I would envisage a batch file which would ask if the USB web server
needed to be started or just python scripts and it would return the IP
address of the server or even some local host name such as 'bobserver'
which I could give it.
I need v2.3 python.
Is this possible
Thanks
Richard
To the best of my knowledge you should be squared away if you have
Movable Python and the script below. Let me know whether it works for
you. (You might have to adjust the path somewhat.)
Movable Python: http://www.voidspace.org.uk/python/movpy/
#!/usr/bin/python
The CGIHTTPServer module
This is a simple HTTP server that can call external scripts through the
common gateway interface
(CGI).
Example: Using the CGIHTTPServer module
# File:cgihttpserver-example-1.py
If you are reading this, you have all the source code necessary to run
your own Web server.
Run this with Python.
Note: This script allows symlinks to places outside the document root.
try:
from mywebserver_config import *
except:
print No mywebserver_config module found. Using defaults.
pass
import CGIHTTPServer
import BaseHTTPServer
class Handler(CGIHTTPServer.CGIHTTPRequestHandler):
cgi_directories = [/cgi]
def writefile(f, data, perms=750): open(f, 'w').write(data) and
os.chmod(f, perms)
def readfile(f): return open(f, 'r').read()
html_template = !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.0
Transitional//EN
HTML
HEAD
TITLEtemp/Title
/HEAD
BODY
H1 ALIGN=CENTERTemporary Server/H1
This is a temporary server. Do not expect to have access to this
indefinitely. This is likely running on my laptop.
/BODY
/HTML
index2_html = !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.0
Transitional//EN
HTML
HEAD
TITLE/Title
/HEAD
BODY
H1 ALIGN=CENTERCGI scripts/H1
a href=cgi/test.pycgi/test.py/abr
/BODY
/HTML
example_cgi = #!/usr/bin/python
# Required header that tells the browser how to render the text.
print Content-Type: text/html\\n\\n
# Print a simple message to the display window.
print Hello, World!\\n
print pWhat follows are some files in the CGI directory:p
import commands
output = commands.getoutput('ls -1 cgi/').splitlines()
for item in output:
print a href=,
print item,
print
print item,
print /a
print br
def readip():
returns your external IP address by querying dyndns.org
import re, urllib
f = urllib.urlopen('http://checkip.dyndns.org')
s = f.read()
m = re.search('([\d]*\.[\d]*\.[\d]*\.[\d]*)', s)
return m.group(0)
print http://+readip()+:8000/
import urllib
import os
originaldir = os.getcwd()
# For safety, changing the document root
import tempfile, os
DOCUMENT_ROOT = tempfile.mkdtemp()
print DOCUMENT_ROOT: + DOCUMENT_ROOT
os.chdir(DOCUMENT_ROOT)
writefile(DOCUMENT_ROOT+/README.html,html_template)
#print readfile(originaldir+'/'+__file__)
writefile(DOCUMENT_ROOT+/+os.path.basename(os.getcwd()+'/'+__file__),readfile(originaldir
+'/'+__file__)) # write a copy of this file
# create a cgi directory
os.mkdir(DOCUMENT_ROOT+'/cgi')
writefile(DOCUMENT_ROOT+/cgi/test.py,example_cgi)
os.chmod(DOCUMENT_ROOT+/cgi/test.py,755)
### not sure why the previous line doesn't work, but this next
(os-dependent) line does work (on some OSes):
os.system('chmod 755 ' + DOCUMENT_ROOT+/cgi/test.py)
### INDEX2.HTML
writefile(DOCUMENT_ROOT+/index2.html,index2_html)
os.system('chmod 755 ' + DOCUMENT_ROOT+/index2.html)
try:
os.remove('/tmp/web') # this path is OS-dependent
os.symlink(DOCUMENT_ROOT, '/tmp/web')
print Created symlink /tmp/web
except:
pass
import os
os.symlink( /Users/shanegeiger/Desktop, DOCUMENT_ROOT+'/Desktop' )
os.symlink( cgi/test.py, DOCUMENT_ROOT+'/test.py' )
PORT = 8000
#httpd = BaseHTTPServer.HTTPServer((, PORT), Handler)
#httpd = BaseHTTPServer.HTTPServer((10.37.129.2, PORT), Handler)
httpd = BaseHTTPServer.HTTPServer((0.0.0.0, PORT), Handler)
print serving at port, PORT
httpd.serve_forever()
--
Shane Geiger
IT Director
National Council on Economic Education
[EMAIL PROTECTED] | 402-438-8958 | http://www.ncee.net
Leading the Campaign for Economic and Financial Literacy
signature.asc
Description: OpenPGP digital signature
--
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Re: Timezones in python
En Wed, 05 Dec 2007 06:43:49 -0300, [EMAIL PROTECTED] escribió:
Thanks guys for your answers! I know those library's but I was
wondering is there something build-in for this simple convert convert.
I have to do it only from +4 to +0.
Copying the example from the tzinfo docs:
from datetime import tzinfo, timedelta, datetime
ZERO = timedelta(0)
HOUR = timedelta(hours=1)
# A class building tzinfo objects for fixed-offset time zones.
# Note that FixedOffset(0, UTC) is a different way to build a
# UTC tzinfo object.
class FixedOffset(tzinfo):
Fixed offset in minutes east from UTC.
def __init__(self, offset, name):
self.__offset = timedelta(minutes = offset)
self.__name = name
def utcoffset(self, dt):
return self.__offset
def tzname(self, dt):
return self.__name
def dst(self, dt):
return ZERO
UTC = FixedOffset(0, 'UTC')
Argentina = FixedOffset(-3*60, 'UTC-3')
UTCPlus4 = FixedOffset(4*60, 'UTC+4')
py now = datetime.now(Argentina)
py print now.strftime('%c %Z')
12/05/07 10:52:28 UTC-3
py print now.astimezone(UTC).strftime('%c %Z')
12/05/07 13:52:28 UTC
py print now.astimezone(Argentina).strftime('%c %Z')
12/05/07 10:52:28 UTC-3
py print now.astimezone(UTCPlus4).strftime('%c %Z')
12/05/07 17:52:28 UTC+4
--
Gabriel Genellina
--
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Re: reloading modules and isinstance()
Steven D'Aprano wrote: On Tue, 04 Dec 2007 15:41:48 +0100, Diez B. Roggisch wrote: You just discovered one reason why reload() is a bad idea and IMHO shouldn't be used at all - as tempting it might be. I disagree -- I find reload() extremely useful for interactively testing modules. But I would never dream of using it in production code! I find short scripts I write start on the commandline much more helpful - and if I need interactivity, throwing in a import pdb; pdb.set_trace() or python -i script do what I want. But I certainly don't have time to hunt down bugs introduced by reloading in the first place... YMMV - and it seems it does :) Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Russ P. wrote: If I had invented Python, I would have called it Newton or Euler, arguably the greatest scientist and mathematician ever, respectively. This makes your taste on the matter dubious. Such choice of a name implies either a claim to the fame of the Person that's devoid of substance. Or else a degree of carelessness about name capture that casts doubt on the quality of the language design. Or else a claim by the language designers/namers to themselves borrow from the Person while destining the language to grunt practitioners not expected to have any (further) need to refer to said Person. Not serious - not even serious marketing, IMHO. -- http://mail.python.org/mailman/listinfo/python-list
Re: An Object's Type
[EMAIL PROTECTED] a écrit : Hi, Is it possible to find out if an object is of a certain type or of a type derived from this type? You have the answer, thanks to Diez and Christian. Now unless you have a *very* compelling reason to check the type of an object, *just forget about it*. 9 times out of 10, this is fighting against the language's type system (hint: google for duck typing). -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did no one tell me about import antigravity?
On Wed, 2007-12-05 at 10:08 +, Adrian Cherry wrote: Ant [EMAIL PROTECTED] wrote in news:52f0eca3-e807-4890-b21d- [EMAIL PROTECTED]: Python on xkcd: http://xkcd.com/353/ Another good comic from xkcd, I'm surprised by the muted response on here. Don't forget to check out the alt. text on the comic Alt text: I wrote 20 short programs in Python yesterday. It was wonderful. Perl, I'm leaving you. Regards Adrian I did check it out. Loved it. I'm about to forward it to my coworkers. I had previously wondered at his Perl zealousy. Now we see--he just didn't know any better. :) Cheers, Cliff -- http://mail.python.org/mailman/listinfo/python-list
RE: Timeout test hangs IDLE
On Dec 5, 6:00 am, Andreas Tawn [EMAIL PROTECTED] wrote:
I'm trying to integrate the timeout function from
herehttp://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/47
3878into a
long running automation script and the following code
causes IDLE after
20 or 30 iterations in countTest.
This is in 2.5, XP and there's no traceback.
Could someone point me at the user error?
Thanks in advance.
def countTest():
for i in xrange(1000):
print i
return True
def timeout(func, args=(), kwargs={}, timeout_duration=1,
default=None):
import threading
class InterruptableThread(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self.result = None
def run(self):
try:
self.result = func(*args, **kwargs)
except:
self.result = default
it = InterruptableThread()
it.start()
it.join(timeout_duration)
if it.isAlive():
return default
else:
return it.result
def runTest():
timeout(countTest, timeout_duration=5)
if __name__ == __main__:
runTest()
I'm confused. What does it cause IDLE to do? I tried running the
script and it ran fine. I killed it 17346 since I have no intention of
letting it tie up my work for your extraordinary large iteration
number.
I'm using Python 2.4 on Windows XP.
Mike
Sorry, I need a better proof-reader.
When I run that code, the output gets to ~26 and then IDLE (or the
shell, I'm not sure which) hangs and there's zero CPU activity in the
pythonw.exe process.
--
http://mail.python.org/mailman/listinfo/python-list
Re: Why Python 3?
A.T.Hofkamp wrote: Well, Python 3 design is from the ground up, and aimed at the future, so they are quite a few steps ahead of today's coding practice, let alone today's code base (which is still 1.5 compatible as you discovered). Just a small note from me: Several people think that we are rewriting Python 3.0 from the scratch. That is *not* correct. The 3.x series shares lots of code with the 2.x series. We are still merging changes from the trunk (2.6) into the py3k branch and we are going to backport several features from 3.0 into 2.6. Some parts are of Python 3.0 are new and the majority of the rest is just cleaned up a bit. Some new features like the new immutable bytes type in 3.0a2 are mostly based on existing code. At http://www.joelonsoftware.com/articles/fog69.html Joel explains why rewriting from the scratch is often the worst strategy. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: Tkinter vs. py2exe problem
On Dec 5, 9:50 am, [EMAIL PROTECTED] wrote: Having a problem with compiling a Tkinter/python program using py2exe (and pyinstaller, for that matter)... I have several dialogs that are derived from the tkSimpleDialog.Dialog class. These work just fine if run through the interpreter. When I compile this with py2exe, I don't see any errors, and when I execute the resulting program, it appears to work fine until I invoke one of the derived dialogs. Then, I get the body of the dialog, but no OK or Cancel button, and I get the following exception: AttributeError: MyDialog instance has no attribute 'buttonbox' For reference, MyDialog is declared as follows: # from Tkinter import * import tkSimpleDialog class MyDialog(tkSimpleDialog.Dialog) # And my setup.py file looks like this: # from distutils.core import setup import py2exe setup(console=['tcgui3.py']) # I'm invoking py2exe like this: C:\python setup.py py2exe -p Tkinter -p tkSimpleDialog ?? Oh, and it fails when the setup() line in setup.py says setup(window=['tcgui3.py']) as well. Same error. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Russ P. [EMAIL PROTECTED] wrote in news:[EMAIL PROTECTED] ups.com: Speaking of stupid names, what does C++ mean? I think it's the grade you get when you just barely missed a B--. But I can't deny that it *is* good for searching. For that matter C# is no better, I thought that # was pronounced hash, I still refer to C# as C-hash. Adrian -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
On 04/12/2007, Hendrik van Rooyen [EMAIL PROTECTED] wrote: Dotan Cohen dotanail.com wrote: Newton was the bridge between science and superstition. Without him, we would not have science. For that he is notable. He is both magician and scientist. It was Newton's belief in the occult that led to his discovery of gravity: the fact that distant objects could influence one another. Even today, science has a hard time accepting that. And gravity _still_ has not been incorporated into a theory of everything / grand unified theory. You live in exciting times - google for surfer dude and E8 for a paper that purports to be a theory of everything. I stumbled across it last week and downloaded a pdf but true to form I have lost the link. It was written by A. Garrett Lisi. Even if his theory pans out, I would oppose changing the language name to Garrett, or Lisi, on the grounds that John Cleese was funnier. I read the paper a few weeks ago when it appeared on /.. It was quite a bit over my head, but to tell you the truth, I think that it has a fighting chance. It explains the family relationship between particles, and even predicts new particles. So it can be tested. Until some of those particles are found, however, I'm still in the string camp. Maybe we could rename Python to String? Dotan Cohen http://what-is-what.com http://gibberish.co.il א-ב-ג-ד-ה-ו-ז-ח-ט-י-ך-כ-ל-ם-מ-ן-נ-ס-ע-ף-פ-ץ-צ-ק-ר-ש-ת A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? -- http://mail.python.org/mailman/listinfo/python-list
Re: Why Python 3?
On 5 Dez., 15:32, Christian Heimes [EMAIL PROTECTED] wrote: Athttp://www.joelonsoftware.com/articles/fog69.htmlJoel explains why rewriting from the scratch is often the worst strategy. About migration strategies: I do not exactly recollect whether it was in Eastland or Jugemanland, but I remember that in the midst of a dreary forest I spied a terrible wolf making after me, with all the speed of ravenous winter hunger. He soon overtook me. There was no possibility of escape. Mechanically I laid myself down flat in the sledge, and let my horse run for our safety. What I wished, but hardly hoped or expected, happened immediately after. The wolf did not mind me in the least, but took a leap over me, and falling furiously on the horse, began instantly to tear and devour the hind-part of the poor animal, which ran the faster for his pain and terror. Thus unnoticed and safe myself, I lifted my head slyly up, and with horror I beheld that the wolf had ate his way into the horse's body; it was not long before he had fairly forced himself into it, when I took my advantage, and fell upon him with the butt-end of my whip. This unexpected attack in his rear frightened him so much, that he leaped forward with all his might: the horse's carcase dropped on the ground, but in his place the wolf was in the harness, and I on my part whipping him continually: we both arrived in full career safe at St. Petersburg, contrary to our respective expectations, and very much to the astonishment of the spectators. http://bulfinch.englishatheist.org/baron/Baron.html -- http://mail.python.org/mailman/listinfo/python-list
Re: sending commands to parallel printer through python
hari wrote:
Hi all,
I need to automate printer command testing, prinetr supports
parallel/
serial/USB.How can i send the commands from python to printer.
I have got pyparallel, as am new to python, no idea how to work on
it.
Please give some tips,The comamnd to be sent to the printer is hex
data 1B 40.please give a example,it will be grateful.
Thank you. postedthe same in it.comp.lang.python
Regards
-Hari
If the printer is connected to the computer running the program you can open
the
printer in binary mode and write to it directly. If it is a networked printer
you will need to write to the spooler.
printer=open(LPT1, wb)
printer.write(int('01b', 16), int('40', 16)
printer.close()
-Larry
--
http://mail.python.org/mailman/listinfo/python-list
Re: How to split string
In other words, the string should be split at every 10th possition but if the 10th character is space, then the string must be split at the nearest space before the 10th possition. It could be better explained if the length of split strings will be 20. S='this is just a random sequence of letters courtesy of monkeys on typewriter.' Results: this is just a random sequence of letters courtesy of monkeys on typewriter.' Any idea how to do that? As mentioned previously, it sounds like you're looking for the built-in textwrap module: s = this is just a random sequence of letters courtesy of monkeys on typewriter. import textwrap print textwrap.fill(s, 20) this is just a random sequence of letters courtesy of monkeys on typewriter. http://docs.python.org/lib/module-textwrap.html The Python library has already done all the heavy lifting--no need to re-invent the wheel. -tkc -- http://mail.python.org/mailman/listinfo/python-list
Re: Tkinter vs. py2exe problem
On Dec 5, 9:50 am, [EMAIL PROTECTED] wrote: Having a problem with compiling a Tkinter/python program using py2exe (and pyinstaller, for that matter)... I have several dialogs that are derived from the tkSimpleDialog.Dialog class. These work just fine if run through the interpreter. When I compile this with py2exe, I don't see any errors, and when I execute the resulting program, it appears to work fine until I invoke one of the derived dialogs. Then, I get the body of the dialog, but no OK or Cancel button, and I get the following exception: AttributeError: MyDialog instance has no attribute 'buttonbox' For reference, MyDialog is declared as follows: # from Tkinter import * import tkSimpleDialog class MyDialog(tkSimpleDialog.Dialog) # And my setup.py file looks like this: # from distutils.core import setup import py2exe setup(console=['tcgui3.py']) # I'm invoking py2exe like this: C:\python setup.py py2exe -p Tkinter -p tkSimpleDialog ?? Nevermind. I fixed it. I had a tkSimpleDialog.py in my local directory that was typed in from an introductory text. Apparently this was confusing Python. Removing that file, and letting it find the tkSimpleDialog from Tk makes it work. Thanks, anyway. -- http://mail.python.org/mailman/listinfo/python-list
Re: [SQL] plpythonu and hello concurrent world
Gerardo Herzig [EMAIL PROTECTED] writes: Hi all. Im having some problems with a small concurrent plpython function. Don't even *think* about starting multiple threads inside the Postgres backend. It's an excellent way to break things. regards, tom lane -- http://mail.python.org/mailman/listinfo/python-list
Re: Why did no one tell me about import antigravity?
On Dec 5, 5:12 am, Richard Jones [EMAIL PROTECTED] wrote: Ant wrote: http://xkcd.com/353/ I laughed :) ... I cried, it's a part of me! -- Paul -- http://mail.python.org/mailman/listinfo/python-list
sending commands to parallel printer through python
Hi all, I need to automate printer command testing, prinetr supports parallel/ serial/USB.How can i send the commands from python to printer. I have got pyparallel, as am new to python, no idea how to work on it. Please give some tips,The comamnd to be sent to the printer is hex data 1B 40.please give a example,it will be grateful. Thank you. postedthe same in it.comp.lang.python Regards -Hari -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Class Best Practice
On Dec 5, 12:18 am, Rod Person [EMAIL PROTECTED] wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I've been doing python programming for about 2 years as a hobby and now I'm finally able to use it at work in an enterprise environment. Since I will be creating the base classes and libraries I wondering which why is consider best when creating python classes: 1: class Foo(object): member1='' member2=0 def __init__(self,member1='',member2=0): self.member1 = member1 self.member2 = member2 2: class Foo(object): def __init(self,member1='',member2=0): self.member1 = member1 self.member2 = member2 The short answer : if 2 works, then stick with it. -- http://mail.python.org/mailman/listinfo/python-list
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Re: reloading modules and isinstance()
En Wed, 05 Dec 2007 15:06:43 -0300, Tlis [EMAIL PROTECTED] escribi�: With all the problems of the reload() function, I still hope, that there should be possible to write a safe module 'reloader', that would fix the references, as required (e.g. by changing the variable.__class__ references). This should be provided by every serious Python development environment. Unfortunately that's not so simple, given the dynamic nature of Python. With some help from the programmer, reload may perform better; by example, if you never ever do from module import xxx, and always do import module and use module.xxx everywhere. But it gets rather annoying, and still has many problems. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Adrian Cherry [EMAIL PROTECTED] (AC) wrote: AC For that matter C# is no better, I thought that # was pronounced AC hash, I still refer to C# as C-hash. Are you musically illiterate? -- Piet van Oostrum [EMAIL PROTECTED] URL: http://www.cs.uu.nl/~piet [PGP 8DAE142BE17999C4] Private email: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
On Dec 4, 2007 10:02 AM, George Sakkis [EMAIL PROTECTED] wrote: On Dec 3, 12:50 pm, Russ P. [EMAIL PROTECTED] wrote: I know this because I've been through it myself. When I tell people that I use Python, I often qualify it by pointing out that it is used extensively at Google. In other words, I'm banking on the reputation of Google to offset the goofiness of the Python name. Come to think of it, maybe it should be called Googlang or Googon? I see, so Python has to somehow offset the goofiness of its name while Google can rest on its reputation. Never occured to you that the goofiness of the name Google is at least an order of magnitude greater than Python. And it never occurred to him that Guido could have named the programming language Google, and later, the search-engine guys could have founded a company named Python. He'd be defending his choice of programming in the Google language by pointing to the reputation of the Python company, while complaining to a list that Google was a goofy name. I'll bet he uses the word google as a verb yet doesn't realize how goofy that sounds to someone unfamiliar with Google? Oh well, I suppose he'll never try programming in Caml, he'd be too embarrassed to tell anyone. -- http://mail.python.org/mailman/listinfo/python-list
RE: Timeout test hangs IDLE
On Dec 5, 6:00 am, Andreas Tawn [EMAIL PROTECTED] wrote:
I'm trying to integrate the timeout function from
herehttp://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/47
3878into a
long running automation script and the following code
causes IDLE after
20 or 30 iterations in countTest.
This is in 2.5, XP and there's no traceback.
Could someone point me at the user error?
Thanks in advance.
def countTest():
for i in xrange(1000):
print i
return True
def timeout(func, args=(), kwargs={}, timeout_duration=1,
default=None):
import threading
class InterruptableThread(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self.result = None
def run(self):
try:
self.result = func(*args, **kwargs)
except:
self.result = default
it = InterruptableThread()
it.start()
it.join(timeout_duration)
if it.isAlive():
return default
else:
return it.result
def runTest():
timeout(countTest, timeout_duration=5)
if __name__ == __main__:
runTest()
I'm confused. What does it cause IDLE to do? I tried running the
script and it ran fine. I killed it 17346 since I have no
intention of
letting it tie up my work for your extraordinary large iteration
number.
I'm using Python 2.4 on Windows XP.
Mike
Sorry, I need a better proof-reader.
When I run that code, the output gets to ~26 and then IDLE (or the
shell, I'm not sure which) hangs and there's zero CPU activity in the
pythonw.exe process.
Also, I should say that the the idea is that the huge iteration should
timeout after 5 seconds. I only gave it a 1000 range because I
didn't know how fast it would get through the loop. Perhaps you stopped
it before the timeout triggered?
Cheers,
Drea
--
http://mail.python.org/mailman/listinfo/python-list
Re: sending commands to parallel printer through python
En Wed, 05 Dec 2007 10:19:51 -0300, hari [EMAIL PROTECTED] escribi�: Hi all, I need to automate printer command testing, prinetr supports parallel/ serial/USB.How can i send the commands from python to printer. I have got pyparallel, as am new to python, no idea how to work on it. Please give some tips,The comamnd to be sent to the printer is hex data 1B 40.please give a example,it will be grateful. a) how to control the printer port: You should look for some info on the protocol and timings. I vaguely remember that you should write the desired data onto the eight data lines, then set the STROBE control signal for some time, then reset the signal. Something like this: import parallel port = parallel.Parallel() def send_to_printer(bytes): for byte in bytes: port.setData(ord(byte)) port.setDataStrobe(1) sleep(...) port.setDataStrobe(0) sleep(...) send_to_printer(Hello world\r\n) You'll have to look for the right values to sleep in each case. Those 1/0 may be reversed too. b) how to convert hex data: The easiest way would be: send_to_printer(\x1B\x40) If you have the string 1B 40 already built: def hex_to_raw(hex): return ''.join([chr(int(num,16)) for num in hex.split()]) data = 1B 40 send_to_printer(hex_to_raw(data)) -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: Tkinter vs. py2exe problem
On Dec 5, 10:07 am, [EMAIL PROTECTED] wrote: On Dec 5, 9:50 am, [EMAIL PROTECTED] wrote: Having a problem with compiling a Tkinter/python program using py2exe (and pyinstaller, for that matter)... I have several dialogs that are derived from the tkSimpleDialog.Dialog class. These work just fine if run through the interpreter. When I compile this with py2exe, I don't see any errors, and when I execute the resulting program, it appears to work fine until I invoke one of the derived dialogs. Then, I get the body of the dialog, but no OK or Cancel button, and I get the following exception: AttributeError: MyDialog instance has no attribute 'buttonbox' For reference, MyDialog is declared as follows: # from Tkinter import * import tkSimpleDialog class MyDialog(tkSimpleDialog.Dialog) # And my setup.py file looks like this: # from distutils.core import setup import py2exe setup(console=['tcgui3.py']) # I'm invoking py2exe like this: C:\python setup.py py2exe -p Tkinter -p tkSimpleDialog ?? Nevermind. I fixed it. I had a tkSimpleDialog.py in my local directory that was typed in from an introductory text. Apparently this was confusing Python. Removing that file, and letting it find the tkSimpleDialog from Tk makes it work. Thanks, anyway. Ummm... Un-nevermind. I didn't fix it. It's still complaining. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to browse a C Library with Python
This could be a solution import commands callables = commands.getoutput(nm -D /lib/libc.so.6 | egrep ' T ' ).split(\n) callables = [c.split()[2] for c in callables] print callables On Dec 5, 2007 5:26 PM, Rafael Sachetto [EMAIL PROTECTED] wrote: with Python it is simple to call direct functions from c-librarys. Is there a way to browse over a library i.e. '/lib/libc.so' with python, to see all possible functions in a library? You could use the subprocess module to execute 'nm /lib/libc.so' and look at lines with type T. To do this on a dynamic library you have to use nm -D /lib/libc.so -- Rafael Sachetto Oliveira Sir - Simple Image Resizer http://rsachetto.googlepages.com -- Rafael Sachetto Oliveira Sir - Simple Image Resizer http://rsachetto.googlepages.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting wxPython to work on a Mac
On Dec 4, 2007 8:35 PM, Timothy Smith [EMAIL PROTECTED] wrote: Not sure exactly what I need to do to get wxPython to work on either of my Macs. (One's a notebook running Tiger (OS X 10.4.11), the other a Mac Pro running Leopard (10.5.1.)) I downloaded what should be the latest binary, and it installed without error. So Python comes up as $ python -V Python 2.5.1 $ ls -l /usr/bin/python lrwxr-xr-x 1 root wheel 72 Oct 26 17:59 /usr/bin/python@ - ../../System/Library/Frameworks/Python.framework/Versions/2.5/bin/python $ I set PYTHONPATH to System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5 The Python interpreter works OK, far as I can tell. wx sort of works, but all the functionality is not there. For example, working through the exercises in WxPython in Action by Noel Rappin, I find that while I can create and display a frame, and create an app, stuff like wx.MessageBox() just doesn't work. The same exercises work just fine on a Python 2.5.1 installation on my wife's Windows XP machine. There's a note at the top of the downloads page - the current wx binary is built against MacPython, not the python that ships with 10.5 That said, 10.5 ships with wx 2.8.4, which is reasonably recent and actually more recent than the book, so you should be pretty much okay without any downloads. I'm not sure if 10.5 ships with the scripts and applications for wxPython - if not, you should download the docs and demos package for 2.8.4 and test with those, especially PyShell and friends. Specific details about what doesn't work (including the script you're running and how you're running it) are welcomed if this doesn't help. -- http://mail.python.org/mailman/listinfo/python-list
Re: reloading modules and isinstance()
On 5 Dec, 13:18, Steven D'Aprano [EMAIL PROTECTED] cybersource.com.au wrote: On Tue, 04 Dec 2007 15:41:48 +0100, Diez B. Roggisch wrote: You just discovered one reason why reload() is a bad idea and IMHO shouldn't be used at all - as tempting it might be. I disagree -- I find reload() extremely useful for interactively testing modules. But I would never dream of using it in production code! -- Steven. Please note, that I was using the 'Reload modules' functionality of the software system in use, rather than the reload() function directly. I admit, though, that in the background it just may call reload() ... With all the problems of the reload() function, I still hope, that there should be possible to write a safe module 'reloader', that would fix the references, as required (e.g. by changing the variable.__class__ references). This should be provided by every serious Python development environment. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to browse a C Library with Python
with Python it is simple to call direct functions from c-librarys. Is there a way to browse over a library i.e. '/lib/libc.so' with python, to see all possible functions in a library? You could use the subprocess module to execute 'nm /lib/libc.so' and look at lines with type T. To do this on a dynamic library you have to use nm -D /lib/libc.so -- Rafael Sachetto Oliveira Sir - Simple Image Resizer http://rsachetto.googlepages.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Piet van Oostrum wrote: Adrian Cherry [EMAIL PROTECTED] (AC) wrote: For that matter C# is no better, I thought that # was pronounced hash, I still refer to C# as C-hash. Are you musically illiterate? I wonder what Cb (C-flat) would be. Ada? :) Regards, Björn -- BOFH excuse #351: PEBKAC (Problem Exists Between Keyboard And Chair) -- http://mail.python.org/mailman/listinfo/python-list
Re: Optimizing memory usage w/ HypterText package
On Dec 5, 1:35 pm, [EMAIL PROTECTED] wrote: I've been using the HyperText module for a while now (http://dustman.net/andy/python/HyperText/), and I really like it. I've run into a situation where I have code to construct a table and while it is normally perfect, there are times where the table can get quite huge (e.g. 1000 columns, 10 rows yes, the question of how on earth would someone render this table? comes up, but that's not the point here :) ), and the code I have generating this starts choking and dying from excessive RAM usage. Duh. I'm curious if people see a better way of going about this task and/or believe that an alternative method of HTML generation here would be better. Here's a hint: go look at comp.lang.python on Google Groups. Note that up in the right corner it says Topics 1-30 of 98305. Why do you suppose there is no option to display ALL the topics, and that you are limited to 100 at a time? A (possibly somewhat pseudocode, as I'm doing this by hand) small example of what I'm doing ... inputs = [A, List, Of, Values, To, Go, Into, A, Table] numcolumns = howManyColumnsIWant out = ht.TABLE() column = 0 for input in inputs: if (column == 0): tr = ht.TR() tr.append(ht.TD(input)) column += 1 if (column == numcolumns): out.append(tr) column = 0 As I said, this works fine for normal cases, but I've run into some situations where I need this to scale not just into the hundreds of thousands but also well into the millions - and that's just not happening. Is there a better way to do this (which involves direct HTML generation in Python), or am I SOL here? -- http://mail.python.org/mailman/listinfo/python-list
How to get the fullname of AcroExch.PDDoc?
Hello group, I'm trying to perform some simple pdf file processing using PyWin32 package with Adobe's COM support. After searching the whole Acrobat Interapplication Communication Reference, I didn't find a way to get the fullname (file path) of AcroExch.PDDoc which does have a GetFileName method (to return the filename of the pdf). Does anyone know the answer? Thank you! -- http://mail.python.org/mailman/listinfo/python-list
Re: reloading modules and isinstance()
On Dec 5, 2007 12:06 PM, Tlis [EMAIL PROTECTED] wrote: On 5 Dec, 13:18, Steven D'Aprano [EMAIL PROTECTED] cybersource.com.au wrote: On Tue, 04 Dec 2007 15:41:48 +0100, Diez B. Roggisch wrote: You just discovered one reason why reload() is a bad idea and IMHO shouldn't be used at all - as tempting it might be. I disagree -- I find reload() extremely useful for interactively testing modules. But I would never dream of using it in production code! -- Steven. Please note, that I was using the 'Reload modules' functionality of the software system in use, rather than the reload() function directly. I admit, though, that in the background it just may call reload() ... With all the problems of the reload() function, I still hope, that there should be possible to write a safe module 'reloader', that would fix the references, as required (e.g. by changing the variable.__class__ references). This should be provided by every serious Python development environment. It's very nice to say that until you actually think about what it entails - it's an extraordinarily hard problem. I challenge you to write one (you don't need to have much more than a beginner knowledge of Python to start on one) and then come back with your experiences. -- http://mail.python.org/mailman/listinfo/python-list
import antigravity
Guess what made xkcd today: http://xkcd.com/353/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Dennis Lee Bieber wrote: I wouldn't be that harsh... Though I've never heard # as hash... Python programmer and never heard of the hashbang? :) Also see: http://en.wikipedia.org/wiki/Number_sign Regards, Björn -- BOFH excuse #170: popper unable to process jumbo kernel -- http://mail.python.org/mailman/listinfo/python-list
Re: An Object's Type
On 2007-12-05, Bruno Desthuilliers [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] a écrit : Is it possible to find out if an object is of a certain type or of a type derived from this type? You have the answer, thanks to Diez and Christian. Now unless you have a *very* compelling reason to check the type of an object, *just forget about it*. 9 times out of 10, this is fighting against the language's type system (hint: google for duck typing). As I understand Python practice (and this is pretty limited, so corrections or other use cases are welcome), type checking is useful for overloading functions by argument type, e.g., __getitem__, which accepts both integers and slice objects as keys for sequence types. Although in the case of __getitem__, et al, it seems like the key type could have been unified to slices (except I suppose the return type also change, er... except for strings--oh never mind). -- Neil Cerutti -- http://mail.python.org/mailman/listinfo/python-list
Re: How to browse a C Library with Python
En Wed, 05 Dec 2007 12:32:31 -0300, georg.heiss [EMAIL PROTECTED] escribi�: with Python it is simple to call direct functions from c-librarys. Is there a way to browse over a library i.e. '/lib/libc.so' with python, to see all possible functions in a library? You could use the subprocess module to execute 'nm /lib/libc.so' and look at lines with type T. -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
Re: YOU MUST KNOW THIS MAN
Deltantor [EMAIL PROTECTED] (D) wrote: D Does c.l.python get religious spam that much? Of all of the places to be D spammed the least likely I expected would be here. Is that the reason you find it necessary to repeat it? -- Piet van Oostrum [EMAIL PROTECTED] URL: http://www.cs.uu.nl/~piet [PGP 8DAE142BE17999C4] Private email: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: import antigravity
On Dec 5, 10:14 pm, [EMAIL PROTECTED] wrote: Guess what made xkcd today: http://xkcd.com/353/ rofl, pity it's on page 2 already of the group ;( -- http://mail.python.org/mailman/listinfo/python-list
AIX Subversion Python Swig Bindings fix for core dump
If you're on AIX and Python immediately dumps core when trying to import any SVN module, then adding -Wl,-brtl to LINKFORSHARED in the Makefile seems to fix the problem. Bad:LINKFORSHARED=-Wl,-bE:Modules/python.exp -lld Good: LINKFORSHARED=-Wl,-bE:Modules/python.exp -lld -Wl,-brtl 1. unset PYTHONPATH 2. ./configure --without-gcc --disable-ipv6 --with-thread CC=/usr/vac/bin/xlc_r CXX=/usr/vacpp/bin/xlC_r 3. Edit Makefile: LINKFORSHARED= -Wl,-bE:Modules/python.exp -lld -Wl,-brtl 4. make CC=/usr/vac/bin/xlc_r CXX=/usr/vacpp/bin/xlC_r OPT=-O2 -qmaxmem=4000 5. make install Oddly enough, there was no need to build Python using shared libraries. (#*shared* in Modules/Setup was left commented out and --enable-shared was not used.) The OPT=... is described in Python-2.5.1/Misc/AIX-NOTES. This was on AIX 5.3, xlc_r 9.0, Python 5.2.1, Subversion 1.4.5. It also appears to work using gcc and Python 2.4.4. Thanks to Andy Nocera for figuring it out before 'Plan B: Blood Sacrifice While Doing the Hokey-Pokey' was implemented. * The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential, proprietary, and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from all computers. GA621 -- http://mail.python.org/mailman/listinfo/python-list
SimpleXMLRPCServer interruptable?
I'm coming back to Python after an absence and it's surprising how many things I've forgotten since wandering (against my will) into Java land. Anyway, I have a need for a way to make SimpleXMLRPCServer interruptable. Basically, I have a main server that, in response to certain RPC calls, creates additional servers on different ports. I then need to be able to shut these additional servers down. I've got something like this in the __init__ of the class which contains the spawned servers: def __init__(self, host, port): : : server = SimpleXMLRPCServer((host, port)) : : Bunch of server.register_function calls : def serverWrapper(): try: while True: server.handle_request() except: pass One of the methods that I register is: def shutdown(self): raise Quitting time Through watching logs and such I can see that the shutdown() method is getting called, but the loop isn't getting broken. I've done something like this before in a previous job (so I don't have my source in front of me, more's the pity) and am hoping someone can chime in with a good idea. Thanks in advance! Bret Wortman -- http://mail.python.org/mailman/listinfo/python-list
Re: How to split string
On 2007-12-05, Tim Chase [EMAIL PROTECTED] wrote: http://docs.python.org/lib/module-textwrap.html The Python library has already done all the heavy lifting--no need to re-invent the wheel. Well no, clearly we need xwrap methods and a ctextwrap module. ;) -- Neil Cerutti -- http://mail.python.org/mailman/listinfo/python-list
Re: Tkinter vs. py2exe problem
On Dec 5, 10:46 am, [EMAIL PROTECTED] wrote:
On Dec 5, 10:07 am, [EMAIL PROTECTED] wrote:
On Dec 5, 9:50 am, [EMAIL PROTECTED] wrote:
Having a problem with compiling a Tkinter/python program using
py2exe (and pyinstaller, for that matter)...
I have several dialogs that are derived from the tkSimpleDialog.Dialog
class. These work just fine if run through the interpreter. When I
compile this with py2exe, I don't see any errors, and when I execute
the resulting program, it appears to work fine until I invoke one of
the derived dialogs.
Then, I get the body of the dialog, but no OK or Cancel button,
and I get the following exception:
AttributeError: MyDialog instance has no attribute
'buttonbox'
For reference, MyDialog is declared as follows:
#
from Tkinter import *
import tkSimpleDialog
class MyDialog(tkSimpleDialog.Dialog)
#
And my setup.py file looks like this:
#
from distutils.core import setup
import py2exe
setup(console=['tcgui3.py'])
#
I'm invoking py2exe like this:
C:\python setup.py py2exe -p Tkinter -p tkSimpleDialog
??
Nevermind. I fixed it. I had a tkSimpleDialog.py in my local
directory that was typed in from an introductory text.
Apparently this was confusing Python. Removing that file, and letting
it find the tkSimpleDialog from Tk makes it work.
Thanks, anyway.
Ummm... Un-nevermind. I didn't fix it. It's still complaining.
Okay, here's a sample program that fails:
#--
#!/usr/bin/python
from Tkinter import *
import tkSimpleDialog
class MyDialog(tkSimpleDialog.Dialog):
def body(self, master):
Label(master, text=Label).grid()
def apply(self):
print OK
if __name__ == __main__:
root = Tk()
md = MyDialog(root)
mainloop()
#
And here's the setup file I'm using with py2exe:
#
from distutils.core import setup
import py2exe
opts = {
py2exe: {
includes:tkSimpleDialog
}
}
setup(windows=['hellogui.py'], options=opts)
#
Can't make it any simpler than that... I'm so confused!
--
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Tkinter vs. py2exe problem
Having a problem with compiling a Tkinter/python program using py2exe (and pyinstaller, for that matter)... I have several dialogs that are derived from the tkSimpleDialog.Dialog class. These work just fine if run through the interpreter. When I compile this with py2exe, I don't see any errors, and when I execute the resulting program, it appears to work fine until I invoke one of the derived dialogs. Then, I get the body of the dialog, but no OK or Cancel button, and I get the following exception: AttributeError: MyDialog instance has no attribute 'buttonbox' For reference, MyDialog is declared as follows: # from Tkinter import * import tkSimpleDialog class MyDialog(tkSimpleDialog.Dialog) # And my setup.py file looks like this: # from distutils.core import setup import py2exe setup(console=['tcgui3.py']) # I'm invoking py2exe like this: C:\python setup.py py2exe -p Tkinter -p tkSimpleDialog ?? -- http://mail.python.org/mailman/listinfo/python-list
Re: SimpleXMLRPCServer interruptable?
I just tried changing this so that I now have a threading.Event() called self.done, which is set within the body of the shutdown() method. The serverWrapper loop now looks like this: def serverWrapper(): while True: server.handle_request() if self.done.isSet(): break This works, but only if I follow the shutdown() rpc call a few seconds later with ... something else to cause handle_request() to complete again. Obviously, not quite the right approach On Dec 5, 2:00 pm, Bret [EMAIL PROTECTED] wrote: I'm coming back to Python after an absence and it's surprising how many things I've forgotten since wandering (against my will) into Java land. Anyway, I have a need for a way to make SimpleXMLRPCServer interruptable. Basically, I have a main server that, in response to certain RPC calls, creates additional servers on different ports. I then need to be able to shut these additional servers down. I've got something like this in the __init__ of the class which contains the spawned servers: def __init__(self, host, port): : : server = SimpleXMLRPCServer((host, port)) : : Bunch of server.register_function calls : def serverWrapper(): try: while True: server.handle_request() except: pass One of the methods that I register is: def shutdown(self): raise Quitting time Through watching logs and such I can see that the shutdown() method is getting called, but the loop isn't getting broken. I've done something like this before in a previous job (so I don't have my source in front of me, more's the pity) and am hoping someone can chime in with a good idea. Thanks in advance! Bret Wortman -- http://mail.python.org/mailman/listinfo/python-list
Re: Python surpasses Perl in TIOBE index
On Dec 5, 7:34 am, BlueBird [EMAIL PROTECTED] wrote: On Dec 4, 4:08 pm, [EMAIL PROTECTED] wrote: This is *not* an attempt to start yet another Python-versus- AnyOtherProgrammingLanguage flame war, but I thought people might be interested in this: http://www.tiobe.com/tpci.htm Marc I find Ohloh comparisons also useful:http://www.ohloh.net/languages/compare?commit=Updatel0=pythonl0_0=-... What it highlights is that the number of python programmer is growing quicker than the number of perl programmers. Not necessarily; it shows that the count of monthly commits by open source developers is growing, which might be mostly thanks to relatively few dedicated committers rather than an overall increase in the population. Another interesing point is that the gap with PHP is narrowing too: http://www.ohloh.net/languages/compare?measure=commitspercent=l0=perll1=phpl2=pythonl3=-1l4=-1commit=Update George -- http://mail.python.org/mailman/listinfo/python-list
Re: Converting LF/FF delimited logs to XML w/ Python?
On Dec 5, 3:19 pm, Kadin2048 [EMAIL PROTECTED] wrote: This is a very noob-ish question so I apologize in advance, but I'm hoping to get some input and advice before I get too over my head. I'm trying to convert some log files from a formfeed- and linefeed-delimited form into XML. I'd been thinking of using Python to do this, but I'll be honest and say that I'm very inexperienced with Python, so before I dive in I wanted to see whether some more experienced minds thought I was choosing the right tool. Basically, what I want to do is convert from instant messaging logs produced by CenterIM, which look like this (Where ^L represents ASCII 12, the formfeed character): ^L IN MSG 1190126325 1190126325 hi ^L OUT MSG 1190126383 1190126383 hello To an XML-based format* like this: chat account=joeblow service=AIM version=0.4 message sender=janedoe time=1190126325hi/message message sender=joeblow time=1190126383hello/message /chat Obviously there's information in the bottom example not present in the top (account names, protocol), but I'll grab those from the file name or prompt the user. Given that I'd be learning as I go along, is Python a good tool for doing this? (Am I totally insane to be trying this as a beginner?) And if so, where should I start? I'd like to avoid massive wheel-reinvention if at all possible. I'm not afraid to RTFM but there's a lot of information around on Python and I'm not sure what's most relevant. Suggestions on what to read, books to buy, etc., are all welcomed. Thanks in advance, Kadin. * For the curious, this is sort of poor attempt at the Universal Log Format as used by Adium on OS X. --http://kadin.sdf-us.org/ I've used lxml and DOM/minidom. Both took my a while to figure out and I still don't always understand them. Anyway, lxml is similar to the method Chris mentioned. http://docs.python.org/lib/module-xml.dom.html http://www.oreilly.com/catalog/pythonxml/chapter/ch01.html http://pyxml.sourceforge.net/topics/ Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting wxPython to work on a Mac
In article [EMAIL PROTECTED], Piet van Oostrum [EMAIL PROTECTED] wrote: TS I set PYTHONPATH to TS System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5 Why would you do that? Don't know, as it's not clear (to me) from the documentation whether PYTHONPATH has to include a path to the regular Python modules, or only to one's own modules. Just fishing here. TS The Python interpreter works OK, far as I can tell. wx sort of works, TS but all the functionality is not there. For example, working through the TS exercises in WxPython in Action by Noel Rappin, I find that while I TS can create and display a frame, and create an app, stuff like TS wx.MessageBox() just doesn't work. TS The same exercises work just fine on a Python 2.5.1 installation on my TS wife's Windows XP machine. I tried the example (python_compare.py) and it just works, including the MessageBox, on Tiger with python 2.5.1. I run the in Terminal (pythonw python_compare.py) both with and without your PYTHONPATH. How did you run the examples? I tried them using just python and also pythonw. Same (lack of) results. I will try going back to the OS X 10.5 distribution of Python. Will have to do a reinstall, I suppose. -- http://mail.python.org/mailman/listinfo/python-list
Converting LF/FF delimited logs to XML w/ Python?
This is a very noob-ish question so I apologize in advance, but I'm hoping to get some input and advice before I get too over my head. I'm trying to convert some log files from a formfeed- and linefeed-delimited form into XML. I'd been thinking of using Python to do this, but I'll be honest and say that I'm very inexperienced with Python, so before I dive in I wanted to see whether some more experienced minds thought I was choosing the right tool. Basically, what I want to do is convert from instant messaging logs produced by CenterIM, which look like this (Where ^L represents ASCII 12, the formfeed character): ^L IN MSG 1190126325 1190126325 hi ^L OUT MSG 1190126383 1190126383 hello To an XML-based format* like this: chat account=joeblow service=AIM version=0.4 message sender=janedoe time=1190126325hi/message message sender=joeblow time=1190126383hello/message /chat Obviously there's information in the bottom example not present in the top (account names, protocol), but I'll grab those from the file name or prompt the user. Given that I'd be learning as I go along, is Python a good tool for doing this? (Am I totally insane to be trying this as a beginner?) And if so, where should I start? I'd like to avoid massive wheel-reinvention if at all possible. I'm not afraid to RTFM but there's a lot of information around on Python and I'm not sure what's most relevant. Suggestions on what to read, books to buy, etc., are all welcomed. Thanks in advance, Kadin. * For the curious, this is sort of poor attempt at the Universal Log Format as used by Adium on OS X. -- http://kadin.sdf-us.org/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Optimizing memory usage w/ HypterText package
On Dec 5, 10:17 pm, Chris [EMAIL PROTECTED] wrote:
On Dec 5, 9:35 pm, [EMAIL PROTECTED] wrote:
I've been using the HyperText module for a while now
(http://dustman.net/andy/python/HyperText/), and I really like it.
I've run into a situation where I have code to construct a table
and while it is normally perfect, there are times where the table
can get quite huge (e.g. 1000 columns, 10 rows yes, the
question of how on earth would someone render this table? comes
up, but that's not the point here :) ), and the code I have generating
this starts choking and dying from excessive RAM usage.
I'm curious if people see a better way of going about this task and/or
believe that an alternative method of HTML generation here would be
better.
A (possibly somewhat pseudocode, as I'm doing this by hand) small example
of what I'm doing ...
inputs = [A, List, Of, Values, To, Go, Into, A, Table]
numcolumns = howManyColumnsIWant
out = ht.TABLE()
column = 0
for input in inputs:
if (column == 0):
tr = ht.TR()
tr.append(ht.TD(input))
column += 1
if (column == numcolumns):
out.append(tr)
column = 0
As I said, this works fine for normal cases, but I've run into some
situations
where I need this to scale not just into the hundreds of thousands but also
well into the millions - and that's just not happening. Is there a better
way to do this (which involves direct HTML generation in Python), or am
I SOL here?
for (i, input) in enumerate(inputs):
Your Code
if not i % 1000:
# Flush your data.
It's logical that you will run out of space as the code just appends
data constantly instead of ever writing it out. How you flush the
data out is up to you or if it's as simple as you have there you could
do something like.
file_out.write('TABLE\n')
for x in xrange(0, len(inputs)//numcolumns):
file_out.write('TR\nTD%s/TD\n/TR' % '/TD
\nTD'.join(inputs[(x*numcolumns):((x+1)*numcolumns)]) )
if not x % 500: file_out.flush()
file_out.write('TR\nTD%s/TD\n/TR\n/TABLE' % '/TD
\nTD'.join(inputs[x*numcolumns:]) )
file_out.close()
Sorry, change the second last line from:
file_out.write('TR\nTD%s/TD\n/TR\n/TABLE' %
'/TD\nTD'.join(inputs[x*numcolumns:]) )
to:
if len(inputs) % numcolumns:
file_out.write('TR\nTD%s/TD\n/TR\n/TABLE' % '/TD
\nTD'.join(inputs[x*numcolumns:]) )
else:
file_out.write('\n/TABLE')
--
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Need Help to start with RTP
Hello to every one. I currently working on project where, I need to handle my audio streaming , For that reason I m looking for some python lib or any python module, which wl help me to construct RTP packets. Or any one can able to lead me to any resource wl also help lot.. Thanks in advanced -- http://mail.python.org/mailman/listinfo/python-list
Re: Timeout test hangs IDLE
I once made a small app that used threads on IDLE.
There was a strange error when using 'print' threads. When what I printed
filled the entire screen, instead of moving all the text up, IDLE just
hanged. Try running your code from the shell instead, to see if the problem
is in IDLE.
HTH,
Sergio
On Dec 5, 2007 5:07 PM, [EMAIL PROTECTED] wrote:
On Dec 5, 10:37 am, Andreas Tawn [EMAIL PROTECTED] wrote:
On Dec 5, 6:00 am, Andreas Tawn [EMAIL PROTECTED] wrote:
I'm trying to integrate the timeout function from
herehttp://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/47
3878into a
long running automation script and the following code
causes IDLE after
20 or 30 iterations in countTest.
This is in 2.5, XP and there's no traceback.
Could someone point me at the user error?
Thanks in advance.
def countTest():
for i in xrange(1000):
print i
return True
def timeout(func, args=(), kwargs={}, timeout_duration=1,
default=None):
import threading
class InterruptableThread(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self.result = None
def run(self):
try:
self.result = func(*args, **kwargs)
except:
self.result = default
it = InterruptableThread()
it.start()
it.join(timeout_duration)
if it.isAlive():
return default
else:
return it.result
def runTest():
timeout(countTest, timeout_duration=5)
if __name__ == __main__:
runTest()
I'm confused. What does it cause IDLE to do? I tried running the
script and it ran fine. I killed it 17346 since I have no
intention of
letting it tie up my work for your extraordinary large iteration
number.
I'm using Python 2.4 on Windows XP.
Mike
Sorry, I need a better proof-reader.
When I run that code, the output gets to ~26 and then IDLE (or the
shell, I'm not sure which) hangs and there's zero CPU activity in the
pythonw.exe process.
Also, I should say that the the idea is that the huge iteration should
timeout after 5 seconds. I only gave it a 1000 range because I
didn't know how fast it would get through the loop. Perhaps you stopped
it before the timeout triggered?
Cheers,
Drea
No...I ran it for at least 30-60 seconds. Making a thread stop on
command is a pain though.
This link taught me one way to do it, but I cannot vouch how will it
works as I've never aborted any of my threads:
http://wiki.wxpython.org/LongRunningTasks
Mike
--
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--
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Re: An Object's Type
Neil Cerutti a écrit : On 2007-12-05, Bruno Desthuilliers [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] a écrit : Is it possible to find out if an object is of a certain type or of a type derived from this type? You have the answer, thanks to Diez and Christian. Now unless you have a *very* compelling reason to check the type of an object, *just forget about it*. 9 times out of 10, this is fighting against the language's type system (hint: google for duck typing). As I understand Python practice (and this is pretty limited, so corrections or other use cases are welcome), type checking is useful for overloading functions by argument type, e.g., __getitem__, which accepts both integers and slice objects as keys for sequence types. Yeps, this is one of the couple occasions you might want to know something about the object's type. The few other use case I had where mostly about the same pattern - low-level and somewhat dirty code. Although in the case of __getitem__, et al, it seems like the key type could have been unified to slices (except I suppose the return type also change, er... except for strings--oh never mind). !-) -- http://mail.python.org/mailman/listinfo/python-list
Re: Converting LF/FF delimited logs to XML w/ Python?
On Dec 5, 2007 3:19 PM, Kadin2048 [EMAIL PROTECTED] wrote: This is a very noob-ish question so I apologize in advance, but I'm hoping to get some input and advice before I get too over my head. I'm trying to convert some log files from a formfeed- and linefeed-delimited form into XML. I'd been thinking of using Python to do this, but I'll be honest and say that I'm very inexperienced with Python, so before I dive in I wanted to see whether some more experienced minds thought I was choosing the right tool. Basically, what I want to do is convert from instant messaging logs produced by CenterIM, which look like this (Where ^L represents ASCII 12, the formfeed character): ^L IN MSG 1190126325 1190126325 hi ^L OUT MSG 1190126383 1190126383 hello To an XML-based format* like this: chat account=joeblow service=AIM version=0.4 message sender=janedoe time=1190126325hi/message message sender=joeblow time=1190126383hello/message /chat Obviously there's information in the bottom example not present in the top (account names, protocol), but I'll grab those from the file name or prompt the user. Given that I'd be learning as I go along, is Python a good tool for doing this? (Am I totally insane to be trying this as a beginner?) And if so, where should I start? I'd like to avoid massive wheel-reinvention if at all possible. I'm not afraid to RTFM but there's a lot of information around on Python and I'm not sure what's most relevant. Suggestions on what to read, books to buy, etc., are all welcomed. This is a pretty simple problem and is well suited for a beginner project. The file() builtin will get you the data in your log file. Using the split() method of the string object, you can break your logfile into chunks. There are a number of XML libraries in the standard lib, but xml.etree is my preferred one. It is documented in the stdlib docs, and on the effbot site. -- http://mail.python.org/mailman/listinfo/python-list
Re: Tkinter vs. py2exe problem
On Dec 5, 9:50 am, [EMAIL PROTECTED] wrote: Having a problem with compiling a Tkinter/python program using py2exe (and pyinstaller, for that matter)... I have several dialogs that are derived from the tkSimpleDialog.Dialog class. These work just fine if run through the interpreter. When I compile this with py2exe, I don't see any errors, and when I execute the resulting program, it appears to work fine until I invoke one of the derived dialogs. Then, I get the body of the dialog, but no OK or Cancel button, and I get the following exception: AttributeError: MyDialog instance has no attribute 'buttonbox' For reference, MyDialog is declared as follows: # from Tkinter import * import tkSimpleDialog class MyDialog(tkSimpleDialog.Dialog) # And my setup.py file looks like this: # from distutils.core import setup import py2exe setup(console=['tcgui3.py']) # I'm invoking py2exe like this: C:\python setup.py py2exe -p Tkinter -p tkSimpleDialog ?? Oh yeah... if it matters, I'm using Python 2.5.1 on Win XP, and py2exe v1.4. I get the same problem using pyinstaller, except it doesn't show the exception - it just fails to display the buttons. -- http://mail.python.org/mailman/listinfo/python-list
Re: Omitting results with id3reader [Beginner]
Thank you for your help, it is really appreciated. I'll post back if there are any more problems. -- http://mail.python.org/mailman/listinfo/python-list
Re: Why Python 3?
Kay Schluehr wrote: This unexpected attack in his rear frightened him so much, that he leaped forward with all his might: the horse's carcase dropped on the ground, but in his place the wolf was in the harness, and I on my part whipping him continually: we both arrived in full career safe at St. Petersburg, contrary to our respective expectations, and very much to the astonishment of the spectators. http://bulfinch.englishatheist.org/baron/Baron.html in order, I presume, to counterpoint the surrealism of the underlying metaphor http://flag.blackened.net/dinsdale/dna/book1.html -- http://mail.python.org/mailman/listinfo/python-list
[OT] Guide me on Apache Virtual server+mod_python
HI, I am sorry for OT here. But I search google, could not quench my thrist, so came here, and for single question, I don't want to subscribe in Apache Newsgroup. The problem is : i wwant to implement a mod_python based Website + Reporting Application on my system. In the domain, my system is : mysys.domain.com Now, I want to implement two subdomains on my apache server: http://www.site.com http://report.site.com Means two or multiple subdomains on same Apache Server. Only one IP Address and NIC is allocated in System (can't go for two IPs). Network has CISCO Routers . So can you please guide me a little, on how to do it. I just need some pointers and I will start finding them on Google. -- -=Ravi=- -- http://mail.python.org/mailman/listinfo/python-list
Re: Omitting results with id3reader [Beginner]
Ionis a écrit :
Hey guys, hope you can help me here. I've been playing with python for
about a week or two and I've been reading A Byte Of Python to get me
on my feet. I've decided to write a program which will list all ID3
information in a directory of .mp3 files into a .html file.
The python script I'm using for this, along with album art (Example)
are in the same directory as the music. The output I am getting when
it reads these files is None so I tried to set up a way to get rid
of these results and move onto the next file.
The omitting I'm attempting is within the If statement half way down
the code, easy to find. Could anyone point me in the right direction
on how to stop these None results showing in the result .html file.
Thanks in advance.
==
import os
import id3reader
songartist = str()
You're passing a string to the string class constructor... this is a bit
redondant, isn't it ?-)
songartist =
songtrack = str()
html_bulkadd = str()
idem...
html_start = str(
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN http://
www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
html xmlns=http://www.w3.org/1999/xhtml;
head
meta http-equiv=Content-Type content=text/html;
charset=utf-8 /
titleTest Document/title
/head
body
)
html_end = str(
/body
/html
)
You may want to learn about string formating.
html_template =
!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN http://
www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
html xmlns=http://www.w3.org/1999/xhtml;
head
meta http-equiv=Content-Type content=text/html; charset=utf-8 /
title%(title)s/title
/head
body
%(content)s
/body
/html
data = {'title':'The title',
'content':h1The content comes here/h1\n
+ pFine, isn't it?/p\n
}
print html_template % data
This would let you build the whole page in one pass instead...
output = file(output.html, w)
output.write()
??? Why this empty string ?
output.write(html_start)
output.close
This *doesn't* call the file.close method, but returns a reference to it
(reference which is immediatly discarded). In Python, the parens are not
optional wrt/ function call - in fact, they actually are the 'call'
operator.
path =
Note that you can pass arguments to Python scripts - like, say, a path.
You retrieve the arg list in sys.argv:
import sys
try:
# sys.argv[0] is either the script name or nothing,
# depending on your os. The first arg - if there's one,
# is sys.argv[1]
path = sys.argv[1]
except IndexError:
# no arg passed
err = usage : python myscript.py path\n(missing argument 'path') \
sys.exit(err)
then call it:
python myscript.py /path/to/some/mp3/dir
This would let you keep your script out of your music directory...
dirList = os.listdir(path)
otUsual convention is to use all_lower names for vars. /ot
for fname in dirList:
songartist = str()
songtrack = str()
Why do you rebind these 2 names ? There already defined above - and
rebound below FWIW.
id3r = id3reader.Reader(fname)
if id3r.getValue('performer') == None:
You want to test against the None object, not against the literal string
None:
if id3.getValue(performer) is None:
# etc
FWIW, note that id3.getValue(tag here) returning None doesn't mean the
file is not a valid mp3 - just that it doesn't hold this information
(tested here...). Anyway, Chris already told you a way to handle this
problem...
break
This get you out of the loop, which may not be what you want. If you
decide to ignore untagged mp3 files, using 'continue' might be a better
idea.
elif id3r.getValue('title') == None:
break
idem
else:
songartist = id3r.getValue('performer')
songtrack = id3r.getValue('title')
Since you only use these variables here, defining them at the top of
your script, and rebiding them at the top of the loop is useless.
Also, you're making useless calls to id3r.getValue. A simpler solution
would be to test the values *after* storing them:
for fname in dirList:
# note that if your script is not in the same
# directory as the one you're inspecting,
# you need to pass absolute path:
fpath os.path.join(path, fname)
id3r = id3reader.Reader(fpath)
songartist = id3r.getValue('performer')
songtrack = id3r.getValue('title')
if (songartist is None or songtrack is None):
# if you want to just skip this file:
continue
# if you're here then songartist and songtrack are not None
output = file(output.html, a)
Opening and closing files is a costly operation. You should not
open/close a same file on each iteration - better to either keep it open
or first store all data and only then open the file, write, and close.
Also and FWIW, you failed to properly close the file before the loop,
Timeout test hangs IDLE
I'm trying to integrate the timeout function from here
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/473878 into a
long running automation script and the following code causes IDLE after
20 or 30 iterations in countTest.
This is in 2.5, XP and there's no traceback.
Could someone point me at the user error?
Thanks in advance.
def countTest():
for i in xrange(1000):
print i
return True
def timeout(func, args=(), kwargs={}, timeout_duration=1, default=None):
import threading
class InterruptableThread(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self.result = None
def run(self):
try:
self.result = func(*args, **kwargs)
except:
self.result = default
it = InterruptableThread()
it.start()
it.join(timeout_duration)
if it.isAlive():
return default
else:
return it.result
def runTest():
timeout(countTest, timeout_duration=5)
if __name__ == __main__:
runTest()
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Re: Converting LF/FF delimited logs to XML w/ Python?
In article [EMAIL PROTECTED], Chris Mellon [EMAIL PROTECTED] wrote: This is a pretty simple problem and is well suited for a beginner project. The file() builtin will get you the data in your log file. Using the split() method of the string object, you can break your logfile into chunks. Glad to hear I'm not jumping too far into the deep end, then. I figured this had to be a fairly common/basic task. There are a number of XML libraries in the standard lib, but xml.etree is my preferred one. It is documented in the stdlib docs, and on the effbot site. Excellent, I'll check it out further. effbot looks like a good resource. Thanks, Kadin. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to split string
Johny wrote:
I have a string of a variable length and I need to split the string
in strings of 6 characters .
But if the 6th character is not space then I must split the string
at possition before the 6th character.
For example:
if the main string S is
S='abcde fghc ijkl mnop'
the result should be
abcde
fghc
ijkl
mnop
Do you have any idea how it can be done?
print textwrap.fill('abcde fghc ijkl mnop verylongword', width=6)
abcde
fghc
ijkl
mnop v
erylon
gword
Peter
--
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Re: How to split string
On Dec 5, 11:55 am, Chris [EMAIL PROTECTED] wrote: On Dec 5, 10:55 am, Johny [EMAIL PROTECTED] wrote: I have a string of a variable length and I need to split the string in strings of 6 characters . But if the 6th character is not space then I must split the string at possition before the 6th character. For example: if the main string S is S='abcde fghc ijkl mnop' the result should be abcde fghc ijkl mnop Do you have any idea how it can be done? Thank you L. That's not a great example of what you are looking for, because that result just looks like: '\n'.join(S.split()) What result would you be looking for with say: S='this is just a random sequence of letters courtesy of monkeys on typewriter.' Chris, Thank you for your reply. So, let's suppose the example: S='this is just a random sequence of letters courtesy of monkeys on typewriter.' and the length of split strings is now 10( instead of 6) The example should be like this this is just a random sequence of letters courtesy of monkeys on typewriter In other words, the string should be split at every 10th possition but if the 10th character is space, then the string must be split at the nearest space before the 10th possition. It could be better explained if the length of split strings will be 20. S='this is just a random sequence of letters courtesy of monkeys on typewriter.' Results: this is just a random sequence of letters courtesy of monkeys on typewriter.' Any idea how to do that? Thank you L. -- http://mail.python.org/mailman/listinfo/python-list
Re: An Object's Type
[EMAIL PROTECTED] wrote: Hi, Is it possible to find out if an object is of a certain type or of a type derived from this type? http://docs.python.org/lib/built-in-funcs.html Look for isinstance. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: How to split string
On Dec 5, 10:55 am, Johny [EMAIL PROTECTED] wrote: I have a string of a variable length and I need to split the string in strings of 6 characters . But if the 6th character is not space then I must split the string at possition before the 6th character. For example: if the main string S is S='abcde fghc ijkl mnop' the result should be abcde fghc ijkl mnop Do you have any idea how it can be done? Thank you L. That's not a great example of what you are looking for, because that result just looks like: '\n'.join(S.split()) What result would you be looking for with say: S='this is just a random sequence of letters courtesy of monkeys on typewriters.' ? -- http://mail.python.org/mailman/listinfo/python-list
Re: os.access() under windows
* R_OK: A process with bypass-traversal-check priv. enabled doesn't need any access to intervening directories in order to get the attributes of a file within them. This means that our existing R_OK result is accurate for any file: if we can get its attributes then you can open the file for reading. That cannot be. There is still an ACL on the file itself which is considered when the file is opened for reading, namely, the List Folder / Read Data permission. It may be that you need the Read Attributes permission to have GetFileAttributes succeed, but that is independent from read data. * W_OK: If a user has *only* read permission on a file (regardless of the intervening directories), we'll still return True for a W_OK check, as long the file doesn't have its read-only bit set. This means that it's possible for os.access to return True for a W_OK check on a file which can't then be opened for, say, appending. Or any other kind of writing. * X_OK: No idea what we should do with this. Well, there is the Traverse Folder / Execute File permission that should be checked against (but currently isn't). Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
An Object's Type
Hi, Is it possible to find out if an object is of a certain type or of a type derived from this type? Thanks, Barry -- http://mail.python.org/mailman/listinfo/python-list
Re: Python is not a good name, should rename to Athon
Russ P. wrote: Speaking of stupid names, what does C++ mean? According to Special Relativity, C++ is a contradiction in terms :) -- http://mail.python.org/mailman/listinfo/python-list
Re: Timezones in python
Thanks guys for your answers! I know those library's but I was wondering is there something build-in for this simple convert convert. I have to do it only from +4 to +0. -- http://mail.python.org/mailman/listinfo/python-list
How to split string
I have a string of a variable length and I need to split the string in strings of 6 characters . But if the 6th character is not space then I must split the string at possition before the 6th character. For example: if the main string S is S='abcde fghc ijkl mnop' the result should be abcde fghc ijkl mnop Do you have any idea how it can be done? Thank you L. -- http://mail.python.org/mailman/listinfo/python-list
Re: reloading modules and isinstance()
On Tue, 04 Dec 2007 15:41:48 +0100, Diez B. Roggisch wrote: You just discovered one reason why reload() is a bad idea and IMHO shouldn't be used at all - as tempting it might be. I disagree -- I find reload() extremely useful for interactively testing modules. But I would never dream of using it in production code! -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: Timeout test hangs IDLE
On Dec 5, 6:00 am, Andreas Tawn [EMAIL PROTECTED] wrote:
I'm trying to integrate the timeout function from
herehttp://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/473878into a
long running automation script and the following code causes IDLE after
20 or 30 iterations in countTest.
This is in 2.5, XP and there's no traceback.
Could someone point me at the user error?
Thanks in advance.
def countTest():
for i in xrange(1000):
print i
return True
def timeout(func, args=(), kwargs={}, timeout_duration=1, default=None):
import threading
class InterruptableThread(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self.result = None
def run(self):
try:
self.result = func(*args, **kwargs)
except:
self.result = default
it = InterruptableThread()
it.start()
it.join(timeout_duration)
if it.isAlive():
return default
else:
return it.result
def runTest():
timeout(countTest, timeout_duration=5)
if __name__ == __main__:
runTest()
I'm confused. What does it cause IDLE to do? I tried running the
script and it ran fine. I killed it 17346 since I have no intention of
letting it tie up my work for your extraordinary large iteration
number.
I'm using Python 2.4 on Windows XP.
Mike
--
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contributing to an open source project
Hi, I am looking for an open source project to contribute to, to enhance my python skills. I have about 6 months experience in the language. I have searched freshmeat.net, but as I'm pretty new, I'm not sure which projects I would be able to contribute to. If anyone can suggest any open source projects python projects that would be suitable for a beginner, and where mentoring might be an option, please let me know. Thanks karma -- http://mail.python.org/mailman/listinfo/python-list
Re: Omitting results with id3reader [Beginner]
On Dec 5, 2:04 pm, Ionis [EMAIL PROTECTED] wrote:
On Dec 5, 11:59 am, Chris [EMAIL PROTECTED] wrote:
Ok, just noticed you linked the id3reader. I tested my code and it
worked fine.
Thanks alot Chris. Could you comment your code so I can see what each
line is doing? I hope that isn't a problem. Still pretty new to python.
import os, fnmatch
fnmatch will check your directory listing and compare
it to the pattern, in this case mp3, and will normalize
the case for you as well and only return those matching
the pattern.
Equivalent commands would be: dir *.mp3 or ls *.mp3
# os.listdir() and the fnmatch.filter will return you lists
# to iterate over so no need to store it seperately
for each_file in fnmatch.filter(os.listdir(path), '*.mp3'):
id3r = id3reader.Reader(each_file) # Read the new file
A value of None will return false if you test it so
by just doing 'if value', it will return false if
there is nothing.
if id3r.getValue('performer') and id3r.getValue('title'):
output = open('output.html','ab')
# using string formatting is neater than string concatenation
output.write('p%s - %s/p\n' % (id3r.getValue('performer'),
id3r.getValue('title')) )
output.close()
HTH,
Chris
--
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Re: Omitting results with id3reader [Beginner]
On Dec 5, 11:59 am, Chris [EMAIL PROTECTED] wrote: Ok, just noticed you linked the id3reader. I tested my code and it worked fine. Thanks alot Chris. Could you comment your code so I can see what each line is doing? I hope that isn't a problem. Still pretty new to python. -- http://mail.python.org/mailman/listinfo/python-list
parsing python code
I need to parse a Python file by breaking it into blocks matching
indentation levels so that function definitions, for loops, and
classes are kept together as blocks. For example, if I have something
like
from scipy import*
from pylab import*
g = .6
Input_freq = 10.0
def load_data(path):
data = loadtxt(path, skiprows = 1)
t = data[:,0]
Input = data[:,1]
Output = data[:,2]
return t,Input,Output
def time_plot(x,y,n = 1):
figure(n)
clf()
for curx, cury in zip(x,y):
plot(curx,cury)
title('Time Plot')
xlabel('time')
ylabel('f(t)')
legend(['Input','Output'],1)
return figure(n)
t, Input, Output = load_data('system_data.txt')
I would like the blocks to be
block1 = ['from scipy import*', 'from pylab import*', 'g =
.6','Input_freq = 10.0']
block2 = ['def load_data(path):',
' data = loadtxt(path, skiprows = 1)',
' t = data[:,0]',
' Input = data[:,1]',
' Output = data[:,2]',
' return t,Input,Output']
and so on.
I think the parser module should enable me to do this, but I can't
seem to figure it out. Specifically, I think I need to use
parser.sequence2ast, but it doesn't work the way I think it should and
I can't find more documentation on it or an example that uses it.
I tried
f = open('Example.py','r')
mylines = f.readlines()
parser.sequence2ast(mylines)
but got a ParserError.
Is there an easy way to do what I need?
Thanks,
Ryan
--
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Re: Timeout test hangs IDLE
On Dec 5, 10:37 am, Andreas Tawn [EMAIL PROTECTED] wrote:
On Dec 5, 6:00 am, Andreas Tawn [EMAIL PROTECTED] wrote:
I'm trying to integrate the timeout function from
herehttp://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/47
3878into a
long running automation script and the following code
causes IDLE after
20 or 30 iterations in countTest.
This is in 2.5, XP and there's no traceback.
Could someone point me at the user error?
Thanks in advance.
def countTest():
for i in xrange(1000):
print i
return True
def timeout(func, args=(), kwargs={}, timeout_duration=1,
default=None):
import threading
class InterruptableThread(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self.result = None
def run(self):
try:
self.result = func(*args, **kwargs)
except:
self.result = default
it = InterruptableThread()
it.start()
it.join(timeout_duration)
if it.isAlive():
return default
else:
return it.result
def runTest():
timeout(countTest, timeout_duration=5)
if __name__ == __main__:
runTest()
I'm confused. What does it cause IDLE to do? I tried running the
script and it ran fine. I killed it 17346 since I have no
intention of
letting it tie up my work for your extraordinary large iteration
number.
I'm using Python 2.4 on Windows XP.
Mike
Sorry, I need a better proof-reader.
When I run that code, the output gets to ~26 and then IDLE (or the
shell, I'm not sure which) hangs and there's zero CPU activity in the
pythonw.exe process.
Also, I should say that the the idea is that the huge iteration should
timeout after 5 seconds. I only gave it a 1000 range because I
didn't know how fast it would get through the loop. Perhaps you stopped
it before the timeout triggered?
Cheers,
Drea
No...I ran it for at least 30-60 seconds. Making a thread stop on
command is a pain though.
This link taught me one way to do it, but I cannot vouch how will it
works as I've never aborted any of my threads:
http://wiki.wxpython.org/LongRunningTasks
Mike
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Re: PyObjC and Webkits
On Dec 4, 1:01 pm, Tommy Grav [EMAIL PROTECTED] wrote: I am trying to install PyObjC 1.4 on my Mac OS X 10.4.11. I run: [EMAIL PROTECTED] Temporary/pyobjc-1.4 -- python setup.py bdist_mpkg -- open ** using pyobjc source-deps py2app for building running bdist_mpkg installing to build/bdist.macosx-10.3-fat/mpkg running build running build_py running build_ext Performing task: Generating wrappers stubs /Library/Frameworks/Python.framework/Versions/2.5/Resources/ Python.app/Contents/MacOS/Python Scripts/CodeGenerators/ cocoa_generator.py building 'WebKit._WebKit' extension gcc -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk - fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd - fPIC -fno-common -dynamic -DNDEBUG -g -O3 -Wall -Wstrict-prototypes - I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5 - c Modules/WebKit/_WebKit.m -o build/temp.macosx-10.3-fat-2.5/Modules/ WebKit/_WebKit.o -IModules/objc -DMACOSX -DAPPLE_RUNTIME -no-cpp- precomp -Wno-long-double -g -Wall -Wstrict-prototypes -Wmissing- prototypes -Wformat=2 -W -Wshadow -Wpointer-arith -Wmissing- declarations -Wnested-externs -Wno-long-long -Wno-import -Ibuild/ codegen/ In file included from Modules/WebKit/_WebKit.m:23: build/codegen/_WebKit_Enum.inc:3:35: error: WebKit/DOMAbstractView.h: No such file or directory Followed by numerous errors. The problem seems to be that the WebKit Framework is not found by the install script. It is present and located in /System/Library/Frameworks/ WebKit.framework/ How can I get the code to find this framework? Cheers TG I've never done this, but I think you need to learn how to create a custom manifest file: http://docs.python.org/dist/manifest.html Hope that helps! Mike -- http://mail.python.org/mailman/listinfo/python-list
Re: Distutils help for sub-packages
On Dec 3, 9:44 am, Rick Muller [EMAIL PROTECTED] wrote: I need some distutils help. I currently run a python library (PyQuante) that, until recently, had all of its modules in a single directory, called PyQuante. The setup command in my setup.py module had a single packages line: packages = ['PyQuante'], I moved some of the routines into Basis and IO subdirectories of PyQuante, and amended the packages line to be: packages = ['PyQuante','PyQuante.Basis','PyQuante.IO'], Everything works find if I'm installing from SVN. However, when I build a tarball via setup.py sdist, the Basis and IO subdirectories are not included. How can I get the distutils to include this? Thanks in advance, Rick I recommend asking the distutils guys at their list: http://mail.python.org/mailman/listinfo/distutils-sig Mike -- http://mail.python.org/mailman/listinfo/python-list
