Re: pyqt and Eric 3
On Thursday 28 April 2005 3:46 am, ChrisH wrote: In article [EMAIL PROTECTED], [EMAIL PROTECTED] says... Are there any Eric 3 users out there? I've been thinking about trying it. Also, if I write scripts for internal use only at my company, do I have to purchase a Qt or pyqt license? Thanks for the info! Chris Oops.. I forgot to say I'm writing code for Windows. Until the GPL versions of Qt4 and PyQt4 are available for Windows (and eric has been ported to it) you will need Qt and PyQt licenses. Phil -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
pydev == Brian Beck [EMAIL PROTECTED] writes: pydev * PyDev isn't yet mature enough to make it practical for me What version? PyDev has increased in maturity quite a bit lately. -- Ville Vainio http://tinyurl.com/2prnb -- http://mail.python.org/mailman/listinfo/python-list
dynamically generating temporary files through python/cgi
Is there a way to dynamically generate temporary files (such as an html, xml or text file) in Python? I'm not sure if I'm explaining myself clearly as I've no clue how to describe this mechanism. I've seen it on certain websites that will generate a file under certain parameters (through forms) that will dissapear (i.e. delete itself) after a specified amount of time. These files usually have some phony string for their filenames...like it's been md5 hashed or something. Is there a group of library functions that allow this? I imagine that if i manually go and allocate a bunch of timers to monitor files, it would be really expensive in load. Or perhaps is this a client-side mechanism? Thanks, - poisondart -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Dave Cook wrote:
(snip)
Once upon a time emacs was considered bloated,
That was when 640ko ought to be enough ?-)
but it's tiny compared to eclipse.
Yeps. And a *lot* faster. And in not that much bigger than Vim in fact...
--
bruno desthuilliers
python -c print '@'.join(['.'.join([w[::-1] for w in p.split('.')]) for
p in '[EMAIL PROTECTED]'.split('@')])
--
http://mail.python.org/mailman/listinfo/python-list
bytecode non-backcompatibility
Martin v. Löwis wrote:
Maurice LING wrote:
I've emailed to catelog-sig mailing list and is still waiting to hear
something. Currently, I have no idea of the structure of PyPI. I hope I
can hear from them soon and generate some starting points...
Posting questions is not the only way to find answers. The source code
of PyPI is available: sf.net/projects/pypi.
Regards,
Martin
I've browsed the source codes of PyPI in sf.net, nothing pops up as very
useful to me... I reckoned that sitting in here or hoping for replies
from catelog-sig isn't going to help much.
On that, I've prototyped a very simple proof-of-concept of what I have
in mind, regarding a Fink-like tool for Python's 3rd party libraries
management. Please bear in mind that this is a proof-of-concept
prototype, really bare bones. It can be found in 'centipyde' module in
sf.net/projects/ib-dwb. In case the CVS hadn't updated by the time
someone reads this, the directory layout is this:
../centipyde
../centipyde/centipyde.py
../centipyde/pgkinfo
../centipyde/pgkinfo/ply15.info
ply15.info contains the following text (pretty much modelled against Fink):
package=ply15
maintainer=.
dependencies=.
downloadurl=http://systems.cs.uchicago.edu/ply/ply-1.5.tar.gz
prebuildscript=tar zxvf ply-1.5.tar.gz
sourcedir=ply-1.5
buildscript=python setup.py build
installscript=sudo python setup.py install
centipyde.py is the following:
=
Author: Maurice H.T. Ling [EMAIL PROTECTED]
Copyright (c) 2005 Maurice H.T. Ling
Date created : 28th April 2005
PKGINFOPATH = 'pkginfo'
INSTALL_LOG = 'install.log'
import os
import string
import sys
def install_package(package_name):
f = open(os.getcwd() + os.sep + PKGINFOPATH + os.sep + package_name
+ '.info', 'r')
install_info = {}
for line in f.readlines():
line = string.split(line, '=')
if line[1][-1] == os.linesep:
install_info[line[0]] = string.strip(line[1][:-1])
else: install_info[line[0]] = string.strip(line[1])
f.close()
print Package Installation Information: + str(install_info)
os.system('curl -O ' + str(install_info['downloadurl']))
preinstall = []
preinstall = string.split(install_info['prebuildscript'], ';')
for cmd in preinstall: os.system(cmd)
cwd = os.getcwd()
print cwd
os.chdir(os.path.join(os.getcwd(), install_info['sourcedir']))
print os.getcwd()
buildscript = []
buildscript = string.split(install_info['buildscript'], ';')
for cmd in buildscript: os.system(cmd)
installscript = []
installscript = string.split(install_info['installscript'], ';')
for cmd in installscript: os.system(cmd)
if sys.argv[1] == 'install':
install_package(sys.argv[2])
=
When I run python centipyde.py install ply15, PLY1.5 gets downloaded
from David Beazley's website, uncompressed and installed into the
site-package.
All comments and code donations are welcomed.
Cheers
Maurice
--
http://mail.python.org/mailman/listinfo/python-list
Re: regex over files
Skip Montanaro wrote: .. I'm not sure why the mmap() solution is so much slower for you. Perhaps on some systems files opened for reading are mmap'd under the covers. I'm sure it's highly platform-dependent. (My results on MacOSX - see below - are somewhat better.) I'll have a go at doing the experiment on some other platforms I have available. The problem is certainly paging related. Perhaps the fact that we don't need to write dirty pages is moot when the system is actually writing out other processes' pages to make room for the incoming ones needed by the cpu hog. I do know that I cannot control that in detail. Also it's entirely possible that file caching/readahead etc etc can skew the results. All my old compiler texts recommend the buffered read approach, but that might be because mmap etc weren't around. Perhaps some compiler expert can say? Also I suspect that in a low level language the minor overhead caused by the book keeping is lower than that for the paging code. Let me return to your original problem though, doing regex operations on files. I modified your two scripts slightly: .. I took the file from Bengt Richter's example and replicated it a bunch of times to get a 122MB file. I then ran the above two programs against it: % python tscan1.py splitX n=2112001 time=8.88 % python tscan0.py splitX n=2139845 time=10.26 So the mmap'd version is within 15% of the performance of the buffered read version and we don't have to solve the problem of any corner cases (note the different values of n). I'm happy to take the extra runtime in exchange for simpler code. Skip I will have a go at repeating this on my system. Perhaps with Bengt's code in the buffered case as that would be more realistic. It has been my experience that all systems crawl when driven into the swapping region and some users of our code seem anxious to run huge print jobs. -- Robin Becker -- http://mail.python.org/mailman/listinfo/python-list
Re: pyqt and Eric 3
http://kscraft.sourceforge.net/convert_xhtml.php?doc=pyqt-windows-install.xhtml Lorenzo -- http://mail.python.org/mailman/listinfo/python-list
Re: interactive web graphics
java are also wide-spread browser plugin with interactive and multimedia capabilities, and java-applets can be written with python (jython) Diez B. Roggisch [EMAIL PROTECTED] wrote: news:[EMAIL PROTECTED] you are after _might_ be done using macromedia flash - as that is a wide-spread browser plugin with interactive and multimedia capabilities. But how to do it in flash I've no idea - after all I'm a pythoneer. Alternatively, SVG might be an option - but I'm not sure if its mature and powerful enough. -- Regards, Diez B. Roggisch -- Best regards, Maksim Kasimov mailto: [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Ville Vainio wrote: What version? PyDev has increased in maturity quite a bit lately. PyDev 0.9.2 with Eclipse 3.0.2. It's a nice effort currently, but some of my issues are: * Code completion doesn't work properly for me, and I have no idea why. I have to type the '.' then ADD A SPACE, *then* press Ctrl+Space. If I type Ctrl+Space after the dot, nothing happens. So basically it's not very useful, because I'd have to go back and get rid of the stupid space. * Code completion isn't nearly as fast as WingIDE. * Auto-indentation could be smarter, such as dedenting after a 'return' statement. * The Problems view finds 52 errors in a file with 0. * Run As doesn't dump me into an interactive shell. -- Brian Beck Adventurer of the First Order -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Oh yeah, and what's with not being able to configure the code completion key sequence. How about *no* key sequence? That's the way every other IDE I've used does it. This is more like semi-automatic code completion. -- Brian Beck Adventurer of the First Order -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Brian Beck wrote: What version? PyDev has increased in maturity quite a bit lately. I realize 0.9.3 is the latest release, but the installation fails through the Eclipse updater: Unable to complete action for feature PyDev for Eclipse due to errors. Unable to create file /opt/eclipse-extensions-3/eclipse/plugins/org.python.pydev_0.9.3/PySrc/SocketTestRunner.py. [/opt/eclipse-extensions-3/eclipse/plugins/org.python.pydev_0.9.3/PySrc/SocketTestRunner.py (No such file or directory)] -- Brian Beck Adventurer of the First Order -- http://mail.python.org/mailman/listinfo/python-list
Re: dynamically generating temporary files through python/cgi
poisondart wrote: I've seen it on certain websites that will generate a file under certain parameters (through forms) that will dissapear (i.e. delete itself) after a specified amount of time... Is there a group of library functions that allow this? No. The easiest way, in my mind would be to store the files in a directory according to the hour they were requested, for example, a file generated between 2 p.m. and 3 p.m. today: http://www.example.com/temp/20050428T14/d41d8cd98f00b204e9800998ecf8427e.html Then you can have a cron job that runs every hour that deletes everything in the temp directory generated 24 hours ago. -- Michael Hoffman -- http://mail.python.org/mailman/listinfo/python-list
Re: Question about python code distribution...
[EMAIL PROTECTED] wrote: Hi, I am sure that this question might have come up repeatedly. Companies may not want to distribute their python code in source form. Even though pyc files are one option, it gets inconvenient to distribute bunch of them . If there is some way to bundle pyc files (akin to .jar), it would be really nice. I understand that pyc files are not hard to decompile (from my reading of previous posts) and module startup times may be longer if they have to be read from an archive. Neverthless, an option to distribute in the form of an archive is attractive. Has this ever been considered for Python? If one were to consider it, what would be pros and cons of such approach? Any comments are appreciated. Thanks, Raghu. Looks like it's in the works: http://peak.telecommunity.com/DevCenter/PythonEggs Cheers, Steve -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Brian Beck wrote: I realize 0.9.3 is the latest release, but the installation fails through the Eclipse updater: Unable to complete action for feature PyDev for Eclipse due to errors. Unable to create file /opt/eclipse-extensions-3/eclipse/plugins/org.python.pydev_0.9.3/PySrc/SocketTestRunner.py. [/opt/eclipse-extensions-3/eclipse/plugins/org.python.pydev_0.9.3/PySrc/SocketTestRunner.py (No such file or directory)] Okay, sorry for spamming the newsgroup so much, but I installed 0.9.3 properly and the same issues I mentioned before persist. Code completion for imports or locals don't work at all -- the space thing was PyDev just listing all the built-ins, with none of my modules or locals included in the list. -- Brian Beck Adventurer of the First Order -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Brian == Brian Beck [EMAIL PROTECTED] writes: Brian Oh yeah, and what's with not being able to configure the Brian code completion key sequence. How about *no* key sequence? Brian That's the way every other IDE I've used does it. This is Brian more like semi-automatic code completion. It works like that for me. I type: import os os.wait a second And I get the list of completions. Perhaps you are just being impatient? Also, make sure that Preferences/pydev/code completion has Autocomplete on '.' box checked. -- Ville Vainio http://tinyurl.com/2prnb -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Brian == Brian Beck [EMAIL PROTECTED] writes: Brian Okay, sorry for spamming the newsgroup so much, but I Brian installed 0.9.3 properly and the same issues I mentioned Brian before persist. Code completion for imports or locals don't Brian work at all -- the space thing was PyDev just listing all Brian the built-ins, with none of my modules or locals included Brian in the list. This is another thing that works fine for me. Have you tried starting with an empty file to see whether there is something in your source file that trips up pydev? Whining at the pydev mailing list might work as well. -- Ville Vainio http://tinyurl.com/2prnb -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Ville Vainio wrote: Perhaps you are just being impatient? Also, make sure that Preferences/pydev/code completion has Autocomplete on '.' box checked. Yeah, that option is enabled. I actually just discovered that it does work in the example you give and for other modules in the standard library. But calls to standard library modules only occur maybe twice in any of my big scripts... the problem is I've been trying code completion with third-party modules and local classes, which still doesn't work. -- Brian Beck Adventurer of the First Order -- http://mail.python.org/mailman/listinfo/python-list
Re: interactive web graphics
Hello Michael, Eckhoff, Michael A wrote: Hello, I failed to locate a list for pygtk, so I thought I'd ask my question here. Is it possible to write CGI scripts that bring up a GUI (as in GTK+, QT, Tk, ...) or an openGL display that is windowed inside a web browser? The answer would seem to me to be no, since the client could be Windows or Linux. I'd like to display some pretty graphics (scientific visualisation), but web applications are not my background. I would like a form with progress bars, but I guess that would have to be implemented in some special way. Sorry if these questions are ill-posed; I am just getting my feet wet with python. There is a simpler, but still non-trivial, way of adding server-client interactivity - using javascript. If you are just moving square bars around you could use the javascript XML http request functions and dynamically change the images (including using PIL - and maybe some of the graph generating stuff from 'pythonweb' web modules - to dynamically generate images server side). Best Regards, Fuzzy http://www.voidspace.org.uk/python Thanks, Michael E PS Congratulations for having such wonderful documentation on all things python. -- http://mail.python.org/mailman/listinfo/python-list
Setting win32 console title from Python
Hi,
I'm trying to set the title of the console window (CMD.EXE) in Windows.
I want it set to the basename of the current directory and it should
stay after the script has finished.
Now, the console title is easily set with the DOS-command 'title
NewTitle'. But I'd like to do this from a Python script.
os.system('title NewTitle') will not do, because it spawns a new
process.
win32api.SetConsoleTitle('NewTitle') will not do either, because the
NewTitle is reset as soon as the script finishes.
Chris Gonnerman's WConio
http://newcenturycomputers.net/projects/wconio.html
has a settitle() method and
WConio.settitle(NewTitle) does what I want, but not under CMD.EXE,
only COMMAND.EXE.
Any ideas?
--
http://mail.python.org/mailman/listinfo/python-list
Re: (PHP or Python) Developing something like www.tribe.net
Ok I get your point. Well actually my application is small in the begining, but then may be will a large one when we want to add more features. -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with sending a variable(python) while using html
Hansan wrote: Hi. Sorry forgot to post a non-working example That could be print a href=script.py?id=, variable, ', some text input type=hidden name=eventid value='''+str(variable_name)+''/a I know that it isnt very creative, but I am having a hard time getting html to work together with python. When the link some text is clicked I want to send both the first variable called variable and the second one(variable_name) to the script (script.py) As Hal pointed out you need to put both variables into the link. Also, you should be url-encoding your values using urllib.quote_plus(); otherwise variable values containing characters like = will cause trouble. So for the link I would use from ulrlib import quote_plus link = a href='script.py?id=%seventid=%s' % (quote_plus(str(variable)), quote_plus(str(variable_name))) Then you may need urllib.unquote_plus() on the reading end depending on the server. Kent -- http://mail.python.org/mailman/listinfo/python-list
Re: (PHP or Python) Developing something like www.tribe.net
CherryPy and Quixote are for programming in the small May I ask why you say that ? Just because a framework is light and easy doesn't mean it doesn't scale well ... I have not idea how they scale in the large. Well, I do :-) Among many other sites, CherryPy powers the BackOffice system of a big cinema chain in the UK. The web app gets hammered all day long by hundreds of users whose work is completely dependent on this web app. It has 500 different web forms (everything is data driven) and the code is about 30K lines of python/cherrypy code (if the code wasn't data-driven it would be a *lot* more ...). If it gets accepted, there will be a talk about this system at EuroPython ... Remi. -- http://mail.python.org/mailman/listinfo/python-list
Re: delete will assure file is deleted?
On Wed, 27 Apr 2005 17:28:04 +0200, rumours say that Fredrik Lundh [EMAIL PROTECTED] might have written: import errno try: ... except OSError, exc: if exc.errno == errno.ENOENT: # file inexistant ... elif exc.errno == errno.EPERM: # no permissions ... make that elif exc.errno in (errno.EACCES, errno.EPERM): # no permissions Yep, you're right (you wouldn't be a bot otherwise, right?-) BTW I remember a post last summer about subclassing OSError (found it: http://groups.google.com.gr/groups?selm=87llgxuyf5.fsf%40pobox.com --not exactly what I remembered, but close.) I think throwing subclasses of OSError based on errno would make life easier --always assuming that Python requires POSIX conformance on all platforms. I will give it a try RSN... -- TZOTZIOY, I speak England very best. Be strict when sending and tolerant when receiving. (from RFC1958) I really should keep that in mind when talking with people, actually... -- http://mail.python.org/mailman/listinfo/python-list
Re: Internet Explorer, COM+, Javascript and Python
Something like this should be close:
import win32com.client, pythoncom
ie=win32com.client.Dispatch('internetexplorer.application')
ie.Visible=1
ie.Navigate('somepagewithjavascript.html')
id=ie.Document.Script._oleobj_.GetIDsOfNames('somejsfunction')
res=ie.Document.Script._oleobj_.Invoke(id, 0, pythoncom.DISPATCH_METHOD,
True, parameter or tuple of parameters )
hth
Roger
Ishpeck [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
I need to make IE execute javascript in a web page with COM+ and
Python.
Similarly to the way they do it in this article. . .
http://www.codeproject.com/com/jscalls.asp
== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+
Newsgroups
= East and West-Coast Server Farms - Total Privacy via Encryption =
--
http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Brian == Brian Beck [EMAIL PROTECTED] writes: Brian Ville Vainio wrote: Perhaps you are just being impatient? Also, make sure that Preferences/pydev/code completion has Autocomplete on '.' box checked. Brian Yeah, that option is enabled. I actually just discovered Brian that it does work in the example you give and for other Brian modules in the standard library. But calls to standard Brian library modules only occur maybe twice in any of my big Brian scripts... the problem is I've been trying code completion Brian with third-party modules and local classes, which still Brian doesn't work. From the faq at http://pydev.sourceforge.net/faq.html: How do I set the PYTHONPATH for code completion to work in my project? To set the PYTHONPATH for code completion purposes, you have to right click your project root, choose properties-PyDev PYTHONPATH and set it. The Restore PYTHONPATH button should get your enviroment PYTHONPATH and automatically set it. If it does not work, check python interpreter is correctly set (see questions above). Does this help? -- Ville Vainio http://tinyurl.com/2prnb -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with sending a variable(python) while using html
Thanks for you help, it is working now :D Take care Kent Johnson [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Hansan wrote: Hi. Sorry forgot to post a non-working example That could be print a href=script.py?id=, variable, ', some text input type=hidden name=eventid value='''+str(variable_name)+''/a I know that it isnt very creative, but I am having a hard time getting html to work together with python. When the link some text is clicked I want to send both the first variable called variable and the second one(variable_name) to the script (script.py) As Hal pointed out you need to put both variables into the link. Also, you should be url-encoding your values using urllib.quote_plus(); otherwise variable values containing characters like = will cause trouble. So for the link I would use from ulrlib import quote_plus link = a href='script.py?id=%seventid=%s' % (quote_plus(str(variable)), quote_plus(str(variable_name))) Then you may need urllib.unquote_plus() on the reading end depending on the server. Kent -- http://mail.python.org/mailman/listinfo/python-list
Re: How remove directories with the content in the platform independent way?
Jason Mobarak wrote: There's also the shutil module, which is platform independant. http://docs.python.org/lib/module-shutil.html ...see the rmtree function Thanks, this is what I was looking for. A. -- http://mail.python.org/mailman/listinfo/python-list
Getting a list of classes in the current module/auto introspection
Hi, I have a following problem. Let's say there is a module which could be imported or run as __main__. It is going to contain hundreds of classes, something like that: import moduleA from moduleB import * class A: pass class B: pass class C: pass [...] I would like to be able to get references (or names) of all of them but excluding stuff from moduleA and module B. Is there any pythonic/elegant way to do that? Thanks, Andy -- http://mail.python.org/mailman/listinfo/python-list
Re: dynamically generating temporary files through python/cgi
Michael Hoffman wrote: The easiest way, in my mind would be to store the files in a directory according to the hour they were requested, for example, a file generated between 2 p.m. and 3 p.m. today: http://www.example.com/temp/20050428T14/d41d8cd98f00b204e9800998ecf8427e.html Depending on the filesystem you use, generating thousands of files in a single directory might be somewhat inefficient. So you might want to make subdirectories based on the MD5 digest instead, like this: http://www.example.com/temp/20050428T14/d4/1d/8cd98f00b204e9800998ecf8427e.html -- Michael Hoffman -- http://mail.python.org/mailman/listinfo/python-list
Re: Ron Grossi: God is not a man
4) I doubt seriously whether God plays a guitar, since guitars are made by men, for men. His Son could theoretically play a guitar. Perhaps He does. Perhaps He doesn't. Only the Father and His Holy Angels know. Perlse. Do you really take this stuf seriously ? It's like the ancient discussion about how many angels can dance on the head of a pin, a lot of bullshit. Sorry in advance to the believers amongst us, but these God Botherers annoy the crap out of me. Believe what you want to, but leave me alone. MJRB -- http://mail.python.org/mailman/listinfo/python-list
Re: Setting win32 console title from Python
runes wrote: I'm trying to set the title of the console window (CMD.EXE) in Windows. I want it set to the basename of the current directory and it should stay after the script has finished. Any ideas? I don't think you can do that. Whenever you start an application from the command prompt the title is modified by appending a dash and the name of the program you started. When the application terminates the title is reset (to remove the name of the running program). So any change to the title will only last until the next time CMD.EXE prompts for input. The exception is that any title set using the TITLE command becomes the reset title for that command prompt. I can think of only one way round this, which is to run your python program from a batch file and find some way to pass the desired title back to the batch file where you can set it with the TITLE command. For example, you could write the title to a temporary file, or if your program doesn't produce much other output print it to stdout and parse the program output using a for command: e.g. This sets the title to the current time: C:\FOR /F tokens=* %i in ( More? 'python -c from time import *; print asctime(localtime())' More? ) DO @TITLE %i C:\ Obvious notes: In a batch file you would double the % characters, and you don't type C:\ or More? as these are the prompts from CMD.EXE. Also this won't work on really old versions of CMD.EXE or with COMMAND.COM. -- http://mail.python.org/mailman/listinfo/python-list
Re: Shutting down twisted reacotr
Jason Mobarak [EMAIL PROTECTED] wrote: Why do you want to do this in a thread? What's wrong with reactor.callLater? import time from twisted.internet import reactor def shutdown(): time.sleep(3) print stopping reactor.callFromThread(reactor.stop) reactor.callInThread(shutdown) reactor.run() In the app I am playing with, I have a thread that reads from the console. When it terminates, I wanted it to shut down the reactor and couldn't use callLater. However, callFromThread worked perfectly. I guess I need to look at the docs some more to understand why its necessary -- [EMAIL PROTECTED] | Roma Invicta! -- http://mail.python.org/mailman/listinfo/python-list
Re: Can .py be complied?
Thx very much, I got the point now ( ; The latter. It's not completely self contained, there is an ..exe and some dll files that need to be distributed together. It's explained very clearly by the py2exe web site: http://starship.python.net/crew/theller/py2exe/ Never used google before? Just go to www.google.com and type in py2exe. Click search. It's the first hit. -- Grant Edwards grante Yow! Is something VIOLENT at going to happen to a visi.comGARBAGE CAN? -- http://mail.python.org/mailman/listinfo/python-list
Re: Can .py be complied?
I've just tried to build both console and windows exe and it works just fine monkey wrote: Thx very much, I got the point now ( ; -- http://mail.python.org/mailman/listinfo/python-list
Re: Question about python code distribution...
You didn't say what platform, but if it is Windows take a look at Inno Installer. It is a complete installation framework that allows you to package everything into a single setup.exe file. I use a combination of py2exe and Inno to do my apps that are to be distributed. Nothing could be simpler. -Larry Bates [EMAIL PROTECTED] wrote: Hi, I am sure that this question might have come up repeatedly. Companies may not want to distribute their python code in source form. Even though pyc files are one option, it gets inconvenient to distribute bunch of them . If there is some way to bundle pyc files (akin to .jar), it would be really nice. I understand that pyc files are not hard to decompile (from my reading of previous posts) and module startup times may be longer if they have to be read from an archive. Neverthless, an option to distribute in the form of an archive is attractive. Has this ever been considered for Python? If one were to consider it, what would be pros and cons of such approach? Any comments are appreciated. Thanks, Raghu. -- http://mail.python.org/mailman/listinfo/python-list
Re: (PHP or Python) Developing something like www.tribe.net
talking about programming in the large and in the small Well, let me specialize my sentence CherryPy and Quixote are for programming in the small in CherryPy and Quixote are good for programming in the small meaning that these frameworks help you when programming in the small. This statement does NOT imply that they get in your way when you program in the large. I just lack the experience in programming in the large with CherryPy and/or Quixote. Also, let me specify what I mean by programming in the large: if a single person can grasp the application, and the application can be implemented by a single team, then you are programming in the small. You are programming in the large only when you have many independent team of developers and you have coordination problems. In this situation a component architecture is supposed to help (and maybe it does, I lack the field experience to give an opinion), whereas when working in the small a component architecture can just get in your way. It is easy to evaluate a framework in the small: it is enough to ask to self the question how much time did it take to me to write my first Web site in that framework starting from zero?. OTOH, to evaluate a framework for programming in the large takes years of experience and practice, and I will not hazard any opinion ;) Still, I believe it is possible to have a frameworks which is scalable both in the small and in the large. Look for instance at the programming language spectrum: Java was intended to program in the large and it is pretty bad when programming in the small; Perl, on the other hand, was meant to program in the small and does not scale at all in the large. However, Python works equally well both in the large and in the small. So, I think there is no contraddiction between large and small, in theory. But in practice there is, so I use Zope at work and Quixote at home ;) Michele Simionato -- http://mail.python.org/mailman/listinfo/python-list
Re: Ron Grossi: God is not a man
Donald L McDaniel [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] 4) I doubt seriously whether God plays a guitar, since guitars are made by men, for men. His Son could theoretically play a guitar. Perhaps He does. Perhaps He doesn't. Only the Father and His Holy Angels know. So then Lucifer was a wicked bass player whose sex and drugs and rock n roll alientated the rest of the band and was fired? -- http://mail.python.org/mailman/listinfo/python-list
Re: mysql.h: No such file or directory when building MySQL-python
[EMAIL PROTECTED] wrote: I'm trying to build 'MySQL-python-1.2.0' on my Linux FC2: ... gcc -pthread -fno-strict-aliasing -DNDEBUG -O2 -g -pipe -march=i386 -mcpu=i686 -D_GNU_SOURCE -fPIC -fPIC -I/usr/include/python2.3 -c _mysql.c -o build/temp.linux-i686-2.3/_mysql.o -I'/usr/include/mysql' _mysql.c:41:19: mysql.h: No such file or directory ... My server configuration: --- [ ]# /usr/local/mysql/bin/mysql_config --cflags[-I'/usr/local/mysql/include/mysql'] --libs [-L'/usr/local/mysql/lib/mysql' -lmysqlclient -lz -lcrypt -lnsl -lm] --socket[/tmp/mysql.sock] --port [3306] --version [3.23.58] ... Any suggestion? Thank you very much. Fedora's mysql_config puts quotes around the directory names, which confuses things. Try MySQL-python-1.2.1c1. I don't think this entirely solves the problem, but I think I know how to fix it for 1.2.1c2. But try it and report your results here: https://sourceforge.net/tracker/index.php?func=detailaid=1146226group_id=22307atid=374932 -- http://mail.python.org/mailman/listinfo/python-list
Re: Setting win32 console title from Python
Hmm.
From an interactive interpreter this works for me.
import os
os.system('title Jay')
but the title returns to its previous value when I Ctrl-Z out of the
process.
If I save this as a file and run it, it seems to work without spawning
a new window but resets it the title after the program finishes like
above.
import os
os.system('title Jay')
x = raw_input()
You mention that the SetConsoleTitle api resets itself after the script
finishes so I'm assuming that 'title' command is just calling the same
api under the covers.
What is your requirement specifically? I do something similar but in a
different way but it might not be what you are after.
I have a 'projects' directory where I keep all of my work. I have
written a small python script 'p.py' that I call like this
p [s|e|*] projectname
the 's' is for shell
the 'e' is for explorer window
the '*' is for both shell and explorer
If there is only one argument, I assume it is the project name and I
default the other argument to 'e'.
if the projectname doesn't have any wildcard characters, I append a '*'
and glob my project directory with that value. if the glob call only
returns a single value, I go ahead and do what was requested (open a
shell or explorer window to that directory) if there is more than one
value returned, I present a numbered menu of project directories that
match and wait for input on which one to open.
The point to all this, is that when I open a shell from p.py I use this
command.
os.system(r'start %s /D%s\%s' % (proj,directory,proj))
This spawns a new cmd window with the title of my project name.
Spawning the process with the correct name from the beginning seems to
do the trick.
But like I said, I don't really know your exact requirements.
HTH.
...
jay
--
http://mail.python.org/mailman/listinfo/python-list
Re: Getting a list of classes in the current module/auto introspection
Any class has a .__module__ attribute giving the name of the module where the class was defined, so you need something like [c for c in globals() if inspect.isclass(c) and c.__module__ == __main__] Michele Simionato -- http://mail.python.org/mailman/listinfo/python-list
Re: Can .py be complied?
IMO the fact that so many people ask How can I create executables in Python on Windows indicates that standard batteries included Windows Python distribution is missing a vital battery. There are tools such as py2exe, but this functionality should be built-in, so that a newbie to Python can just download it, type python -o foo.exe foo.py at the command line, and get an executable, without any further effort. -- http://mail.python.org/mailman/listinfo/python-list
Re: pyqt and Eric 3
[EMAIL PROTECTED] writes: http://kscraft.sourceforge.net/convert_xhtml.php?doc=pyqt-windows-install.xhtml Which, afaics, unfortunately requires either that you have msvc or that you compile python and every addon with mingw :-( -- Brian (remove the sport for mail) http://www.et.dtu.dk/staff/be/be.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Fast plotting?
William Park [EMAIL PROTECTED] writes: Russell E. Owen [EMAIL PROTECTED] wrote: Can anyone recommend a fast cross-platform plotting package for 2-D plots? Our situation: We are driving an instrument that outputs data at 20Hz. Control is via an existing Tkinter application (which is being extended for this new instrument) that runs on unix, mac and windows. We wish to update 5-10 summary plots at approximately 2 Hz and will be offering controls to control the instrument and the plots, preferably (but not necessarily) mixed in with the plots. That's 10-20 plots per second. The only GUI plotter that I know is 'gnuplot', and I don't know if it will spit out anything at 10-20Hz. For character plots (like old days terminal), it has speed but ugly to look at. HippoDraw is quite fast and scriptable from Python http://www.slac.stanford.edu/grp/ek/hippodraw -- http://mail.python.org/mailman/listinfo/python-list
Re: Setting win32 console title from Python
Whenever you start an application from the command prompt the title is modified by appending a dash and the name of the program you started. When the application terminates the title is reset (to remove the name of the running program). So any change to the title will only last until the next time CMD.EXE prompts for input. The exception is that any title set using the TITLE command becomes the reset title for that command prompt. Thanks Duncan! That sounds reasonable. What I do today is actually using a .BAT file and read the name from a temp file created by a python script. It works, but it's slow and the batchfile-language gives me the creep ;-) I'll try to find out why it does work in command.exe/WConio though. -- http://mail.python.org/mailman/listinfo/python-list
Job openings for scientifically-oriented programmers
Positions: Scientific Programmers Location: Department of Radiation Oncology, Division of Bioinformatics and Outcomes Research, Washington University School of Medicine, St. Louis, Missouri Our newly created Division of Bioinformatics and Outcomes Research has immediate openings for scientifically-oriented programmers. We are developing software systems for clinical and research use, including storage and visualization of three-dimensional image datasets as well as radiation therapy dose distributions (see our web-page at http://radium.wustl.edu/cerr). The successful candidates would be involved in various projects which require software development, possibly including image visualization, data re-formatting, optimization techniques, parallel processing, database construction, and other aspects of radiation therapy treatment planning and outcomes research. Strong computational and mathematical skills are needed. The Dept. of Radiation Oncology has a large clinical service in the use of radiation to treat cancer, as well as a large, active, academic group involved in a full range of radiotherapy research activities. Helpful experience would include scientific programming (any language), matrix language programming (Python, Fortran90, Matlab, IDL, PVWave, or similar), related course work, and a strong interest in scientific programming. Beginning salary depends on experience and background. The positions begin as soon as July 1, 2005. Interested candidates should e-mail a resume, including GPAs if recently graduated or still a student. Contact: Joseph Deasy, Ph.D., Associate Professor of Radiation Oncology and Director, Division of Bioinformatics and Outcomes Research, Dept. of Radiation Oncology, Washington University School of Medicine, at the email address: [EMAIL PROTECTED] Washington University School of Medicine is an equal opportunity, affirmative action employer, and we encourage minorities to apply. -- http://mail.python.org/mailman/listinfo/python-list
anybody have a CGIXMLRPCRequestHandler example?
I see the ones in the docs, but I really (apparently) need some usage notes. Something as simple as an echo would probably do the trick. -- http://mail.python.org/mailman/listinfo/python-list
Re: Setting win32 console title from Python
Hi Jay. It seems like my requirement is a light edition of your. I like having many console windows open, and to make it easier to switch between them, I like to name them. Todays solution is rather tedious - a batch file that calls a python script that isolates the directory name and stores it in temp file the batch file reads and use as argument in the title command. It works fine, but I dislike the combination and the entire concept of having to create a temporary file for such a small task. The batch language is probably the most terrible scripting environment ever created ;-) -- http://mail.python.org/mailman/listinfo/python-list
Re: Good morning or good evening depending upon your location. I want to ask you the most important question of your life. Your joy or sorrow for all eternity depends upon your answer. The question is: Are you saved? It is not a question of how good you are, nor if you are a church member, but are you saved? Are you sure you will go to Heaven when you die? GOOGLE·NEWSGROUP·POST·152
Report to [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: Can .py be complied?
python -o foo.exe foo.py at the command line, and get an executable, without any further effort. Hence making the resulting program useless to users of most operating systems. -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting the sender widget's name in function (Tkinter)
In article [EMAIL PROTECTED],
Eric Brunel [EMAIL PROTECTED] wrote:
On 26 Apr 2005 13:37:29 -0700, infidel [EMAIL PROTECTED] wrote:
from Tkinter import Tk, Button
def say_hello(event):
print 'hello!'
print event.widget['text']
root = Tk()
button1 = Button(root, text='Button 1')
button1.bind('Button-1', say_hello)
button1.pack()
button2 = Button(root, text='Button 2')
button2.bind('Button-1', say_hello)
button2.pack()
root.mainloop()
Unfortunately, making a binding to Button-1 on Button widgets does not
have the same behavior as setting their 'command' option. The binding
will fire when the button is *pressed*; the command will be called when
the button is *released*. So, binding to ButtonRelease-1 instead of
Button-1 make things a little better, but still does not have the same
effect, since ButtonPress and ButtonRelease events are balanced: the
widget getting the ButtonRelease event is always the same as the one
getting the ButtonPress event. So if the mouse button is pressed inside
the Button, then the mouse pointer goes out of it, and then the mouse
button is released, the Button will still get the ButtonRelease event
and fire the binding. This is not the normal behavior for a button and
this is not the behavior you get via the 'command' option (just try
it...).
So having a different function for each button or using tiissa's
solution is definitely better.
.
.
.
Without unraveling my own confusion about who has said what to whom, does
everyone realize that Tkinter bind()ings inherently can access the widgets
which generate their events? Please refer to Table 7-2 in URL:
http://www.pythonware.com/library/tkinter/introduction/events-and-bindings.htm
(and thank Fredrik, once again, for his marvelous work in putting this
material online).
--
http://mail.python.org/mailman/listinfo/python-list
anonymous functions/expressions without lambda?
I see lambda is going away, so I want to use something that will be
around for awhile.
All I want to do is provide an inline function as an argument to
another function.
For example, let's say I have a function which binds a key to a function
call. I want to do something simple in this function call, and I have
a lot of bindings, so I don't want to have a ton of tiny little
functions scattered around:
def setVarTo1():
foo.var = 1
def setVarTo2():
foo.var = 2
bind('a', setVarTo1)
bind('b', setVarTo2)
Instead, I'd like to do something like this:
bind('a', foo.var = 1)
bind('b', foo.var = 2)
What's the recommended way to do something like this?
Note that the bind function is implemented in C, and I am embedding
the interpreter.
--
http://mail.python.org/mailman/listinfo/python-list
Re: Setting win32 console title from Python
Cool. Let me know if you want a copy of p.py (in all of it's hard-coded glory). I can easily put it under Public Domain and you can copy whatever you want out of it. ... jay -- http://mail.python.org/mailman/listinfo/python-list
Re: Job openings for scientifically-oriented programmers
Email was scrambled by google: Correct email address is: bior _jobs @ yahoo.com (remove spaces). I apologize for that. - Joe Deasy -- http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
Paul Miller wrote:
I see lambda is going away, so I want to use something that will be
around for awhile.
All I want to do is provide an inline function as an argument to
another function.
That's what lambda does. But it's going away, you'll have to use def
when it does, unless the language designers come up with something better.
For example, let's say I have a function which binds a key to a function
call. I want to do something simple in this function call, and I have
a lot of bindings, so I don't want to have a ton of tiny little
functions scattered around:
def setVarTo1():
foo.var = 1
def setVarTo2():
foo.var = 2
bind('a', setVarTo1)
bind('b', setVarTo2)
If a lot of the bindings are actually setting variables, you could do
something like this:
def attrsetter(obj, name, 1):
def _return_func(value):
return setattr(obj, name, value)
return _return_func
Instead, I'd like to do something like this:
bind('a', foo.var = 1)
bind('b', foo.var = 2)
bind('a', attrsetter(foo, var, 1))
bind('a', attrsetter(foo, var, 2))
--
Michael Hoffman
--
http://mail.python.org/mailman/listinfo/python-list
Re: Why Python does *SLICING* the way it does??
Antoon Pardon [EMAIL PROTECTED] writes: The problem is that the fields in lst are associated with a number that is off by one as they are normally counted. If I go and ask my colleague which field contains some specific data and he answers: the 5th, I have to remind my self I want lst[4] This is often a cause for errors. It sounds like you should wrap that list in an object more reminding of the source data, then. -- Bjrn Lindstrm [EMAIL PROTECTED] Student of computational linguistics, Uppsala University, Sweden -- http://mail.python.org/mailman/listinfo/python-list
Re: Setting win32 console title from Python
runes wrote:
Hi Jay. It seems like my requirement is a light edition of your. I like
having many console windows open, and to make it easier to switch
between them, I like to name them. Todays solution is rather tedious
- a batch file that calls a python script that isolates the directory
name and stores it in temp file the batch file reads and use as
argument in the title command.
It works fine, but I dislike the combination and the entire concept of
having to create a temporary file for such a small task. The batch
language is probably the most terrible scripting environment ever
created ;-)
As I showed in my other post you can parse program output without using a
temporary file.
If all you want to do is to run a script which sets the title when CMD.exe
starts, that is actually quite easy:
c:\temp\startcmd.py
import os
print Python startup
os.execv('c:\\windows\\system32\\cmd.exe',
[/D, /C, title, CMD - + os.getcwd()]
-
Then run regedit and find the key
HKEY_CURRENT_USER\Software\Microsoft\Command Processor\AutoRun
edit it and insert the name of your script (in this example
c:\temp\startcmd.py).
Now whenever you start a new command processor the script will set the
title and CMD will NOT reset it. It seems that if you set the title from a
subprocess when CMD is starting it will accept your change.
Warning: don't use os.system from the startcmd.py script as that would run
CMD.exe without the /D flag which would run the script recursively as it
starts.
--
http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
Michael Hoffman wrote:
That's what lambda does. But it's going away, you'll have to use def
when it does, unless the language designers come up with something better.
Yeah, I'm using lamda now it works nicely/cleanly.
If a lot of the bindings are actually setting variables, you could do
something like this:
def attrsetter(obj, name, 1):
def _return_func(value):
return setattr(obj, name, value)
return _return_func
bind('a', attrsetter(foo, var, 1))
bind('a', attrsetter(foo, var, 2))
Ah, perfect. Thanks!
--
http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
Michael Hoffman wrote:
Paul Miller wrote:
I see lambda is going away, so I want to use something that will be
around for awhile.
All I want to do is provide an inline function as an argument to
another function.
That's what lambda does. But it's going away, you'll have to use def
when it does, unless the language designers come up with something better.
For example, let's say I have a function which binds a key to a
function call. I want to do something simple in this function call,
and I have a lot of bindings, so I don't want to have a ton of tiny
little functions scattered around:
def setVarTo1():
foo.var = 1
def setVarTo2():
foo.var = 2
bind('a', setVarTo1)
bind('b', setVarTo2)
If a lot of the bindings are actually setting variables, you could do
something like this:
def attrsetter(obj, name, 1):
def _return_func(value):
return setattr(obj, name, value)
return _return_func
I think you meant to write something like this:
def attrsetter(obj, name, value):
def _return_func():
return setattr(obj, name, value)
return _return_func
Or, if you want to delay binding of the value parameter:
def attrsetter(obj, name):
def _return_func(value):
return setattr(obj, name, value)
return _return_func
Cheers,
Dave
--
http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Ville Vainio wrote: Does this help? Not really, my PYTHONPATH is fine. I found out that modules imported in the format import mx work fine, but from mx import DateTime doesn't work -- it will still only auto-complete when I type mx. instead of realizing that it's in the local scope now. So it's fine all the modules fine, just placing them wrong in the auto-complete search tree, or however it works. -- Brian Beck Adventurer of the First Order -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Sorry about that Frank. You have to create a project (New -- Project) and add your file to it then Run--Run. This is a bug that slipped past because we do all of our development using projects and hadn't even tried the obvious: open file and run. That fix has made its way to the wx folks, but hasn't been released yet. -- http://mail.python.org/mailman/listinfo/python-list
Re: Which IDE is recommended?
Franz, To ask for help otherwise, use the forums link from http://sourceforge.net/projects/activegrid/ --Matt -- http://mail.python.org/mailman/listinfo/python-list
split question
I've a simple question. Why the following:
words = [EMAIL PROTECTED]@^%[wordA] [EMAIL PROTECTED].split('[EMAIL
PROTECTED]*()_+-=[]{},./')
doesn't work? The length of the result vector is 1.
I'm using ActivePython 2.4
Alex
--
http://mail.python.org/mailman/listinfo/python-list
Re: split question
On 2005-04-28, alexk [EMAIL PROTECTED] wrote:
I've a simple question. Why the following:
words = [EMAIL PROTECTED]@^%[wordA] [EMAIL PROTECTED].split('[EMAIL
PROTECTED]*()_+-=[]{},./')
doesn't work?
But it does work. Your input string (the one on the left) does
not contain the delimiter string you're passing to the split()
method. The argument to split() is a delimiter string not a
set of delimter characters.
The length of the result vector is 1.
Yup :)
--
Grant Edwards grante Yow! This MUST be a good
at party -- My RIB CAGE is
visi.combeing painfully pressed up
against someone's MARTINI!!
--
http://mail.python.org/mailman/listinfo/python-list
Re: Ron Grossi: God is not a man
MC05 wrote: Donald L McDaniel [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] 4) I doubt seriously whether God plays a guitar, since guitars are made by men, for men. His Son could theoretically play a guitar. Perhaps He does. Perhaps He doesn't. Only the Father and His Holy Angels know. So then Lucifer was a wicked bass player whose sex and drugs and rock n roll alientated the rest of the band and was fired? 1) Lucifer was an angel who rebelled against God, not a member of a human rock 'n roll band. 2) Since Lucifer is an angel, I doubt seriously whether he can play a bass guitar or other musical instrument. As I said in my last post, musical instruments are made by men for men, not angels. 3) Since Lucifer is an angel, he does not engage in sexual relations. (Christ tells us that angels don't engage in sexual relations by His Own Words.) 4) Drugs and rock 'n roll are created by men for men, not angels. And the green plants of the Earth were created by a Gracious God for His beloved creations, the men of the Earth. 5) Lucifer was not a member of a rock 'n roll band. He is a spirit, not a man. 6) While we are on the subject of rock 'n roll, any such band which contains horns is pure crap anyway (or seriously living in the dark ages). Horns don't belong in rock 'n roll bands. Rock 'n roll has advanced light-years beyond Elvis. It is the 21st Century, not the 20th. -- Donald L McDaniel Please reply to the original thread, so that the thread may be kept intact. == -- http://mail.python.org/mailman/listinfo/python-list
Re: creating very small types
On Thu, 28 Apr 2005 05:07:34 GMT, [EMAIL PROTECTED] (Bengt Richter) wrote:
... some not quite correct code ;-/
(I copy/pasted and created an illusion. My code dict has no EOS, so
I decode pad zero bits as code that a single zero stands for ('a' in this case)
so that was an oversight. I should have extended the coding some more or
reserved
perhaps 'F' as EOString, and tested for EOS in the decode stream.
This is revised, sorry.
You can make a 'way more efficient decoder as an exercise ;-)
Hint: if you make a dict of all the 2**width integers as keys where
width is your widest code (4 here for 2**4), then you can do a single
mask of 2**width-1 and look up the translation to (char, codewidth) directly,
according to the codewidth least significant bits, if you make all the states
of the other bits into keys that map to the same (char,codewidth).
So for example all the even values of out 2**16 would have to map to ('a', 1)
and all the values with 2 LSBs of 01 (of which there are 4) would map to ('b',2)
and so forth. Thus the incrementing of width and trying one thing after
another is not necessary. I think that will work ...
Well, now Andrea has something to do ;-)
trivcodec.py
#trivcodec.py
EOS = ''
import itertools
def encode(stream):
outchar = count = 0
for char in itertools.chain(stream, [EOS]):
bits, width = codes[char]
outchar |= (bitscount)
count += width
while count = 8:
yield chr(outchar0xff)
outchar = 8
count -= 8
if count:
yield chr(outchar)
def decode(stream):
codebuf = count = 0
width = 1; char = None
for codebyte in stream:
codebyte = ord(codebyte)
codebuf |= (codebytecount)
count += 8
if widthcount:
continue
while width = count:
code = (codebuf((1width)-1), width)
if code not in chars:
width += 1
continue
char = chars[code]
if char == EOS: break
yield char
codebuf = width
count -= width
width = 1
if char == EOS: break
width = 1
#trivial encoding dict: a=0 b=01 C=0011 D=0111 E=1011 EOS=
codes = {'a':(0x00,1), 'b':(0x01, 2),
'C':(0x3+0x4*0,4), 'D':(0x3+0x4*1,4),
'E':(0x3+0x4*2,4), EOS:(0x3+0x4*3,4)}
chars = dict([(v,k) for k,v in codes.items()]) # reverse
def test(*tests):
if not tests: tests = ['abaDECbaabbD']
for charstream in tests:
print
codestream = ''.join(list(encode(charstream)))
print '%r [%s] -(encode)- %r [%s]' % (
charstream, len(charstream), codestream, len(codestream))
recovered = ''.join(list(decode(codestream)))
print '%r [%s] -(decode)- %r [%s]' % (
codestream, len(codestream), recovered, len(recovered))
if __name__ == '__main__':
import sys
test(*sys.argv[1:])
Result:
Not really. Tack enough a's on the recovered chars to account for zero fill
of the last encoded byte ;-/
[22:02] C:\pywk\clppy24 trivcodec.py
'abaFECbaabbDF' [13] -(encode)- '\xf2;Q\xf7' [4]
'\xf2;Q\xf7' [4] -(decode)- 'abaFECbaabbDF' [13]
Fine, because the [4] bytes were totally filled.
[22:02] C:\pywk\clppy24 trivcodec.py a b C D E F
'a' [1] -(encode)- '\x00' [1]
'\x00' [1] -(decode)- 'a' [1]
Not so fine. There is no character serving as EOS mark.
'b' [1] -(encode)- '\x01' [1]
'\x01' [1] -(decode)- 'b' [1]
'C' [1] -(encode)- '\x03' [1]
'\x03' [1] -(decode)- 'C' [1]
'D' [1] -(encode)- '\x07' [1]
'\x07' [1] -(decode)- 'D' [1]
'E' [1] -(encode)- '\x0b' [1]
'\x0b' [1] -(decode)- 'E' [1]
'F' [1] -(encode)- '\x0f' [1]
'\x0f' [1] -(decode)- 'F' [1]
That really produced:
[ 8:03] C:\pywk\clppy24 trivcodec.py a b C D E F
'a' [1] -(encode)- '\x00' [1]
'\x00' [1] -(decode)- '' [8]
'b' [1] -(encode)- '\x01' [1]
'\x01' [1] -(decode)- 'baa' [7]
'C' [1] -(encode)- '\x03' [1]
'\x03' [1] -(decode)- 'C' [5]
'D' [1] -(encode)- '\x07' [1]
'\x07' [1] -(decode)- 'D' [5]
'E' [1] -(encode)- '\x0b' [1]
'\x0b' [1] -(decode)- 'E' [5]
'F' [1] -(encode)- '\x0f' [1]
'\x0f' [1] -(decode)- 'F' [5]
So we need to assign a code as the EOS.
And probably translate that to '' as the return char,
and end on that.
So now it does (having given up for EOS instead of F):
[10:22] C:\pywk\clppy24 trivcodec.py
'abaDECbaabbD' [12] -(encode)- 'r;Q\xf7' [4]
'r;Q\xf7' [4] -(decode)- 'abaDECbaabbD' [12]
[10:22] C:\pywk\clppy24 trivcodec.py a b C D E
'a' [1] -(encode)- '\x1e' [1]
'\x1e' [1] -(decode)- 'a' [1]
'b' [1] -(encode)- '=' [1]
'=' [1] -(decode)- 'b' [1]
'C' [1] -(encode)- '\xf3' [1]
'\xf3' [1] -(decode)- 'C' [1]
'D' [1] -(encode)- '\xf7' [1]
'\xf7' [1] -(decode)- 'D' [1]
'E' [1] -(encode)- '\xfb' [1]
'\xfb' [1] -(decode)- 'E' [1]
Goes to show you, eh? Slice and
Re: Python or PHP?
Steve Holden [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED]... John Bokma wrote: Alan Little wrote: Steve Holden [EMAIL PROTECTED] wrote: Your statement then becomes select * from foo where bar=1; drop table foo which is clearly not such a good idea. I'm sure Steve is very well aware of this and was just providing a simple and obvious example, nevertheless it might be worth pointing out that anyody who connects their web application to their database as a user that has DROP TABLE privileges, would clearly be in need of a lot more help on basic security concepts than just advice on choosing a programming language. True. But how does it stop someone who uses inserts? (I exclude the case inserts are not needed). Inserts are indeed not needed, if you really don't want to allow them. The web app user connects to a schema that has no direct write privileges on anything. Instead it has execute permissions on stored procedures in another schema that do the writes. In Oracle, at any rate, the stored procedure then runs with the privileges of the schema it is in, but the calling user doesn't need or get those privileges. Over the top in many cases, but it's an extra layer of defence if you want it. This goes back to the point somebody made earlier on in the thread - many web applications can be implemented as fairly simple wrappers around properly designed databases. Properly designed includes giving some thought to table ownership and privileges. One should stop SQL injection always, no matter if the database takes care of it or not. There is no excuse (like, yeah, but I set up the privileges right) for allowing SQL injection, ever. Wasn't suggesting that for a moment. Correct. If a thing can't go wrong, it won't. In security several levels of defense are better than just one, so database authorization and SQL injection removal should be considered complimentary techniques of a belt and braces (US: belt and suspenders) approach. regards Steve I completely agree of course. Do both. -- http://mail.python.org/mailman/listinfo/python-list
Re: split question
alexk wrote:
I've a simple question. Why the following:
words = [EMAIL PROTECTED]@^%[wordA] [EMAIL PROTECTED].split('[EMAIL
PROTECTED]*()_+-=[]{},./')
doesn't work? The length of the result vector is 1.
I'm using ActivePython 2.4
Alex
Do you mean, why doesn't it split on every character in '[EMAIL
PROTECTED]*()_+-=[]{},./' ?
Help on built-in function split:
split(...)
S.split([sep [,maxsplit]]) - list of strings
Return a list of the words in the string S, using sep as the
delimiter string. If maxsplit is given, at most maxsplit
splits are done. If sep is not specified or is None, any
whitespace string is a separator.
sep as a whole is the delimeter string
If you want to split on any of the characters in your sep string, use a regexp:
Perhaps:
import re
splitter = re.compile([EMAIL PROTECTED]*()_+-= ]+) #note escapes for []
splitter.split([EMAIL PROTECTED]@^%[wordA] [EMAIL PROTECTED])
['', 'wordA', 'wordB', '']
is closer to what you had in mind
Michael
--
http://mail.python.org/mailman/listinfo/python-list
Re: Ron Grossi: God is not a man
Donald L McDaniel [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] MC05 wrote: Donald L McDaniel [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] 4) I doubt seriously whether God plays a guitar, since guitars are made by men, for men. His Son could theoretically play a guitar. Perhaps He does. Perhaps He doesn't. Only the Father and His Holy Angels know. So then Lucifer was a wicked bass player whose sex and drugs and rock n roll alientated the rest of the band and was fired? 1) Lucifer was an angel who rebelled against God, not a member of a human rock 'n roll band. 2) Since Lucifer is an angel, I doubt seriously whether he can play a bass guitar or other musical instrument. As I said in my last post, musical instruments are made by men for men, not angels. 3) Since Lucifer is an angel, he does not engage in sexual relations. (Christ tells us that angels don't engage in sexual relations by His Own Words.) 4) Drugs and rock 'n roll are created by men for men, not angels. And the green plants of the Earth were created by a Gracious God for His beloved creations, the men of the Earth. 5) Lucifer was not a member of a rock 'n roll band. He is a spirit, not a man. 6) While we are on the subject of rock 'n roll, any such band which contains horns is pure crap anyway (or seriously living in the dark ages). Horns don't belong in rock 'n roll bands. Rock 'n roll has advanced light-years beyond Elvis. It is the 21st Century, not the 20th. As it is the 21st Century one would think your beliefs as outlined and enumerated would be considered even MORE dark age than horns in rock n roll. -- http://mail.python.org/mailman/listinfo/python-list
OOP
Hey yall, I'm new to Python and I love it. Now I can get most of the topics covered with the Python tutorials I've read but the one thats just stumping me is Object Orientation. I can't get the grasp of it. Does anyone know of a good resource that could possibly put things in focus for me? Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting the sender widget's name in function (Tkinter)
Cameron Laird wrote: In article [EMAIL PROTECTED], Eric Brunel [EMAIL PROTECTED] wrote: Unfortunately, making a binding to Button-1 on Button widgets does not have the same behavior as setting their 'command' option. Without unraveling my own confusion about who has said what to whom, does everyone realize that Tkinter bind()ings inherently can access the widgets which generate their events? I don't know about everyone, but I can assume that's definitively the case of infidel (who precisely based the solution you quoted on this) and Eric Brunel. But that may not be the topic at hand. Indeed, the main point is that, according to Eric, bind() and command don't behave in the exact same way. And the OP asked about having a reference on the widget using the command callback (that, contrary to event-binded callbacks, don't get passed any argument). So far, the OP is proposed the choice to either use the event/bind mecanism or use different callbacks for his different buttons (either with the method I proposed or not). -- http://mail.python.org/mailman/listinfo/python-list
Re: OOP
[EMAIL PROTECTED] wrote: Hey yall, I'm new to Python and I love it. Now I can get most of the topics covered with the Python tutorials I've read but the one thats just stumping me is Object Orientation. I can't get the grasp of it. Does anyone know of a good resource that could possibly put things in focus for me? Maybe Part VI, Classes and OOP, of the book Learning Python, 2nd edition, by Lutz and Ascher. Both the motivation for OOP and its implementation in Python are discussed, in about 100 pages. -- http://mail.python.org/mailman/listinfo/python-list
Re: split question
Yes, all of you are right. Thank you all for your answers - I'll use a regex. -- http://mail.python.org/mailman/listinfo/python-list
Re: how can I sort a bunch of lists over multiple fields?
I'd be just such a newbie; I don't understand why it would matter if I left the book instance referencing itself However these wonderful responses have gotten me a very long way towards my goal. I just have a couple of quick questions. firstly, I am trying hard to figure out how to create a new file with the list rather than print to standard out. I haev done this: for book in books: print book # just to be sure it works as I expect sort1 = open(r'D:\path to\sort1.csv', 'w+') print sort1, book sort1.close() and this creates the file as I expect, however it creates it populated with only the information of the final book in the sorted list. I am guessing I need to figure out how to append as part of this loop, but the only info I have found so far suggests this should append by default? Secondly, I am wondering how I can get a search algorithm that will search by multiple fields here, so that I can (as one example) sort the books out by author and then date, to present a list of the book grouped by authors and having each group presented in a chronological order, or by author and title, grouping all the books up into authors presenting each group alphabetically by title. Or by publisher and date, or by publisher and code I have tried things like books.sort(key = operator.attrgetter(author), key = operator.attrgetter(title) and books.sort(key = operator.attrgetter(author, title) but they both give errors. Is this where using cmd functions instead of keys becomes necessary? Thanks! googleboy -- http://mail.python.org/mailman/listinfo/python-list
Re: OOP
On 28 Apr 2005 10:34:44 -0700, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hey yall, I'm new to Python and I love it. Now I can get most of the topics covered with the Python tutorials I've read but the one thats just stumping me is Object Orientation. I can't get the grasp of it. Does anyone know of a good resource that could possibly put things in focus for me? Thanks. Learning Python (Lutz/Ascher) has a good discussion of the basics. Unfortunately, most of the OOP writings I've read fall into two catagories: Trivial examples where you say, But why Bother?? and examples that you don't understand until you've some OO design under your belt and can understand what it's all good for. Objects are, at the end of the day, data and the accompanying methods. Once you've read the various tutorials take a stab at converting a problem you know well into objects. You'll get it wrong at first. Most everyone does. Don't sweat it. Eventually, you'll just get it. -- http://mail.python.org/mailman/listinfo/python-list
Re: how can I sort a bunch of lists over multiple fields?
How about using the csv module instead of splitting ?
[EMAIL PROTECTED] wrote:
What you want I guess is to read first all lines of the file into a
string as you did, and then let the split method split it based on
newlines only - see example below.
Then you use split again to put all elements of one line into another
list - split it on commas.
Now you can define sortfunctions for all columns you want to sort, e.g.
like below - and use those to compare elements. You get a script like:
-#!/usr/bin/env python
-
-def cmp_index(a, b, ndx):
- if a[ndx] b[ndx]:
-return -1
-elif a[ndx] b[ndx]:
- return 1
-else:
-return 0
-
-def cmp_0(a, b):
-return cmp_index(a, b, 0)
-
-def cmp_1(a, b):
-return cmp_index(a, b, 1)
-
-s = 'Kikker en Eend,Max Veldhuis\nDikkie Dik,Jet Boeke\nRuminations on
C++,Andrew Koenig Barbara Moo'
-s = s.split('\n')
-l = []
-for i in s:
-l.append(i.split(','))
-
-l.sort(cmp_0)
-print l
-l.sort(cmp_1)
-print l
with output like:
[EMAIL PROTECTED]:~ $ ./test.py
[['Dikkie Dik', 'Jet Boeke'], ['Kikker en Eend', 'Max Veldhuis'],
['Ruminations on C++', 'Andrew Koenig Barbara Moo']]
[['Ruminations on C++', 'Andrew Koenig Barbara Moo'], ['Dikkie Dik',
'Jet Boeke'], ['Kikker en Eend', 'Max Veldhuis']]
[EMAIL PROTECTED]:~ $
--
http://mail.python.org/mailman/listinfo/python-list
why import wx doesn't work?
I just learn to make a blank windows frame with python and wxpython. I found the statment import wx cannot work as the original from wxPython.wx import *. I see in the readme file of wxpython that if I install it as the default one, I can use import wx instead of the long one. What is wrong? The code pasted below: import wx # the default is from wxPython.wx import *, I change it and it just can't work. class MyApp(wxApp): def OnInit(self): frame = wxFrame(NULL, -1, Hello from wxPython) frame.Show(true) self.SetTopWindow(frame) return true app = MyApp(0) app.MainLoop() -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting the sender widget's name in function (Tkinter)
Here's a slight variation of tiissa's solution that gives the callable a reference to the actual widget instead of just it's name: from Tkinter import Tk, Button class say_hello: def __init__(self, widget): self.widget = widget def __call__(self): print 'Hello,', self.widget['text'] def run(): root = Tk() b1 = Button(root, text='Button 1') b1.configure(command=say_hello(b1)) b1.pack() b2 = Button(root, text='Button 2') b2.configure(command=say_hello(b2)) b2.pack() root.mainloop() run() -- http://mail.python.org/mailman/listinfo/python-list
Re: how can I sort a bunch of lists over multiple fields?
googleboy wrote:
firstly, I am trying hard to figure out how to create a new file with
the list rather than print to standard out. I haev done this:
for book in books:
print book # just to be sure it works as I expect
sort1 = open(r'D:\path to\sort1.csv', 'w+')
print sort1, book
sort1.close()
and this creates the file as I expect, however it creates it populated
with only the information of the final book in the sorted list.
You're reopening the file on each iteration of the loop. I think you
want to open it only once, before the loop, e.g.
sort1_file = open(r'D:\path to\sort1.csv', 'w+')
for book in books:
sort1_file.write('%s\n' % book) # same as print sort1, book
sort1_file.close()
Note that the opening and closing of the file is outside the loop.
Secondly, I am wondering how I can get a search algorithm that will
search by multiple fields here, so that I can (as one example) sort
the books out by author and then date, to present a list of the book
grouped by authors and having each group presented in a chronological
order, or by author and title, grouping all the books up into authors
presenting each group alphabetically by title. Or by publisher and
date, or by publisher and code
I have tried things like
books.sort(key = operator.attrgetter(author), key =
operator.attrgetter(title) and
books.sort(key = operator.attrgetter(author, title)
but they both give errors.
The problem is that operator.attrgetter only accepts a single attribute.
Basically, attrgetter looks something like:
def attrgetter(attr_name):
def func(obj):
return getattr(obj, attr_name)
return func
So attrgetter can't really solve your problem. However, you can create
a similar function that should do the job. Something like (untested):
def get_key(*attr_names):
def key(book):
return [getattr(book, name) for name in attr_names)]
return key
Then you should be able to do something like:
books.sort(key=get_key(author, title))
The trick is that the inner function, 'key', looks up a sequence of
attributes on the book object, instead of just a single attribute like
attrgetter does.
HTH,
STeVe
--
http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
Dave Benjamin wrote: I think you meant to write something like this: def attrsetter(obj, name, value): def _return_func(): return setattr(obj, name, value) return _return_func Sure did. Sorry. -- Michael Hoffman -- http://mail.python.org/mailman/listinfo/python-list
Re: how can I sort a bunch of lists over multiple fields?
I'd be just such a newbie; I don't understand why it would matter if I left the book instance referencing itself It's just kind of sloppy and unnecessary to have self.self firstly, I am trying hard to figure out how to create a new file with the list rather than print to standard out. I haev done this: I think you want 'a' instead of 'w+' as the file's mode. You can also open and close the file outside of the loop; it would be more efficient. Secondly, I am wondering how I can get a search algorithm that will search by multiple fields here, so that I can (as one example) sort the books out by author and then date, to present a list of the book grouped by authors and having each group presented in a chronological order, or by author and title, grouping all the books up into authors presenting each group alphabetically by title. Or by publisher and date, or by publisher and code So far, we've been using the key parameter of list.sort. If you want sort criteria more complicated than a single attribute, you can sort based on a custom comparison function.Comparison functions compare two objects (let's call them A and B), and return one of three possible values: A is greater than B = 1 A is less than B = -1 A and B are equal = 0 The built-in function cmp can be used to compare objects; behavior is defined for built-in types: cmp(0, 1) = -1 cmp(Zylophone, Abstract) = 1 # alphabetical ordering for strings cmp( [1,2,3], [1,2,3] ) = 0 # compare sequence elements from left to right So another way to do a sort-by-author for your books would be: def compare_authors(book1, book2): return cmp(book1.author, book2.author) books.sort(compare_authors) A more complicated comparison function might nest two others: def compare_dates(book1, book2): # Assuming that your dates are either numerical or are strings for which # alphabetical sorting is identical to chronological... return cmp(book1.date, book2.date) def compare_author_and_date(book1, book2): different_authors = compare_authors(book1, book2) if different_authors: # different authors return different_authors else: # same author. sort by date. return compare_dates(book1, book2) books.sort(compare_author_and_date) -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting the sender widget's name in function (Tkinter)
In article [EMAIL PROTECTED], tiissa [EMAIL PROTECTED] wrote: . . . So far, the OP is proposed the choice to either use the event/bind mecanism or use different callbacks for his different buttons (either with the method I proposed or not). Thanks, Tissa. Is there general understanding that use different callbacks ... can be implemented as parametrize the same callback with a widget-specific value? -- http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
In article [EMAIL PROTECTED],
Peter Hansen [EMAIL PROTECTED] wrote:
Paul Miller wrote:
For example, let's say I have a function which binds a key to a function
call. I want to do something simple in this function call, and I have
a lot of bindings, so I don't want to have a ton of tiny little
functions scattered around:
def setVarTo1():
foo.var = 1
def setVarTo2():
foo.var = 2
bind('a', setVarTo1)
bind('b', setVarTo2)
Instead, I'd like to do something like this:
bind('a', foo.var = 1)
bind('b', foo.var = 2)
What's the recommended way to do something like this?
This meets your requirements as stated:
def temp():
foo.var = 1
bind('a', temp)
def temp():
foo.var = 2
bind('b', temp)
del temp
-Peter
Ewww! *When* is lambda going bye-bye? I apparently
haven't been paying close enough attention. Among other
considerations, I still instruct people to use lambda for
plenty of specific cases.
--
http://mail.python.org/mailman/listinfo/python-list
Re: Getting the sender widget's name in function (Tkinter)
Cameron Laird wrote: In article [EMAIL PROTECTED], tiissa [EMAIL PROTECTED] wrote: So far, the OP is proposed the choice to either use the event/bind mecanism or use different callbacks for his different buttons (either with the method I proposed or not). Is there general understanding that use different callbacks ... can be implemented as parametrize the same callback with a widget-specific value? Tough questions thou ask! Again I can't answer about general understanding. ;) However, having myself proposed such a solution in this very thread (and hinted about it in the above sentence), I do hope most people (at least those interested in this issue) will be aware of this kind of trick (without any restriction on the actual implementation). :) -- http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
Michael Hoffman wrote: Dave Benjamin wrote: I think you meant to write something like this: def attrsetter(obj, name, value): def _return_func(): return setattr(obj, name, value) return _return_func Sure did. Sorry. You guys have been very helpful! While on the subject, is there an equivalent for methodcaller? ie. if I want to bind a function which calls a specific method of an object with a specific parameter? -- http://mail.python.org/mailman/listinfo/python-list
Re: Setting win32 console title from Python
Hi Duncan, sorry, I was unprecise. I'm thinking of a script, called t.py that can be used in the console like an ordinary command. Som if I change directory from S:\scripts to d:\projects and execute the script the title changes to projects etc. I have that functionality today with a combination of a python script and a batch file. I just wondered if I could use python all the way. Apparently I cannot. Here are the scripts: -- DirInPath:\t.bat @echo off :: reads bare directory name from file :: created by external Python script set DIR_FILE_NAME=DOS_IS_TERRIBLE.tmp PyBareDir.py %DIR_FILE_NAME% for /F eol=; %%t in (%DIR_FILE_NAME%) do ( title %%t ) del /Q /F DOS_IS_TERRIBLE.tmp -- DirInPath:\PyBareDir.py # extracts bare directory name and writes # it to file with name given as argument. from os import getcwd from os.path import basename import sys try: saveAsName = sys.argv[1] lastDir = basename(getcwd()) XWwz(saveAsName, 'w+').write(lastDir + '\n;') except: print PyBareDir failed:, sys.exc_info()[1] --- -- http://mail.python.org/mailman/listinfo/python-list
embedding an interactive console
I did this YEARS ago with Python 1.5, and I recall it being slightly painful. I have an embedded Python interpreter and I want to provide an interactive console (implemented in my GUI application with a Qt TextEdit widget). I can handle the GUI part of it, but I'm wondering what the latest Python method of implementing this is. I note the documentation for InteractiveConsole, which is implemented in Python. Is there any example code for using this from within C/C++ code to emulate the command-line interpreter inside a GUI app? -- http://mail.python.org/mailman/listinfo/python-list
Can't run BLT program more than once?
I'm running activestate Python 2.4 for windows, and the latest BLT, under XP. I'm using pythonWin as my environment. When I run my plotting program the first time, it works just fine. If I exit out (normally), and then run it again from PythonWin, I get the following error. It's as if something isn't getting properly re-initialized. If I quit out of PythonWin, and relaunch it, I can run the program again, once. Any ideas? Error: 1 TclError Exception in Tk callback Function: bound method PathEval.doOpenTrace of __main__.PathEval instance at 0x0127AC60 (type: type 'instancemethod') Args: () Traceback (innermost last): File C:\Python24\lib\Pmw\Pmw_1_2\lib\PmwBase.py, line 1747, in __call__ None File C:\NBU\perforce\hardware\test\home_survey\data\home_007\raw_data\KitchenToDen\AMPLITUDE\PathEval.py, line 89, in doOpenTrace self.doPlotTrace() # go plot the thing File C:\NBU\perforce\hardware\test\home_survey\data\home_007\raw_data\KitchenToDen\AMPLITUDE\PathEval.py, line 117, in doPlotTrace self.graph = Pmw.Blt.Graph(tkRoot) # make a new graph area File C:\Python24\lib\Pmw\Pmw_1_2\lib\PmwBlt.py, line 260, in __init__ None File C:\Python24\lib\lib-tk\Tkinter.py, line 1861, in __init__ self.tk.call( TclError: invalid command name ::blt::graph -- http://mail.python.org/mailman/listinfo/python-list
Can'r run BLT twice?
I'm running PythonWin on XP. When I run my plotter program the first time, it works fine. The second time I run it, I get the following error. If I exit PythonWin, and restart, I can again run it once. Any ideas? Error: 1 TclError Exception in Tk callback Function: bound method PathEval.doOpenTrace of __main__.PathEval instance at 0x0127AC60 (type: type 'instancemethod') Args: () Traceback (innermost last): File C:\Python24\lib\Pmw\Pmw_1_2\lib\PmwBase.py, line 1747, in __call__ None File C:\NBU\perforce\hardware\test\home_survey\data\home_007\raw_data\KitchenToDen\AMPLITUDE\PathEval.py, line 89, in doOpenTrace self.doPlotTrace() # go plot the thing File C:\NBU\perforce\hardware\test\home_survey\data\home_007\raw_data\KitchenToDen\AMPLITUDE\PathEval.py, line 117, in doPlotTrace self.graph = Pmw.Blt.Graph(tkRoot) # make a new graph area File C:\Python24\lib\Pmw\Pmw_1_2\lib\PmwBlt.py, line 260, in __init__ None File C:\Python24\lib\lib-tk\Tkinter.py, line 1861, in __init__ self.tk.call( TclError: invalid command name ::blt::graph -- http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
Paul Miller wrote: Michael Hoffman wrote: Dave Benjamin wrote: I think you meant to write something like this: def attrsetter(obj, name, value): def _return_func(): return setattr(obj, name, value) return _return_func Sure did. Sorry. You guys have been very helpful! While on the subject, is there an equivalent for methodcaller? ie. if I want to bind a function which calls a specific method of an object with a specific parameter? You could use a combination of bound methods and the curry function defined in the Python Cookbook: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52549 The examples in the discussion do just that. Dave -- http://mail.python.org/mailman/listinfo/python-list
Re: Internet Explorer, COM+, Javascript and Python
Roger Upole [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Something like this should be close:
import win32com.client, pythoncom
ie=win32com.client.Dispatch('internetexplorer.application')
ie.Visible=1
ie.Navigate('somepagewithjavascript.html')
id=ie.Document.Script._oleobj_.GetIDsOfNames('somejsfunction')
res=ie.Document.Script._oleobj_.Invoke(id, 0, pythoncom.DISPATCH_METHOD,
True, parameter or tuple of parameters )
hth
Roger
Yes, that definitely works. Only one minor correction: it seems that to
pass multiple parameters you need to pass them sequentially seperated by
commas instead of in a tuple, i.e.
res=ie.Document.Script._oleobj_.Invoke(id, 0, pythoncom.DISPATCH_METHOD,
True, param1, param2, param3, . )
Useful test sitefor above code:
http://www.cpplab.com/Articles/JSCalls/TestPage/JSCallTestPage.htm
HTH,
Ishpeck [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
I need to make IE execute javascript in a web page with COM+ and
Python.
Similarly to the way they do it in this article. . .
http://www.codeproject.com/com/jscalls.asp
== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet
News==
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+
Newsgroups
= East and West-Coast Server Farms - Total Privacy via Encryption
=
--
http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
Paul Miller wrote: While on the subject, is there an equivalent for methodcaller? ie. if I want to bind a function which calls a specific method of an object with a specific parameter? def funccaller(func, *args, **kwargs): def _return_func(): return func(*args, **kwargs) return _return_func class Test1(object): def __init__(self, x): self.x = x def method(self, a, b, c): return self.x + a + b + c t1 = Test1(42) funccaller_result = funccaller(t1.method, 3, 4, c=5) funccaller_result() And this time I actually tested it, and it works! ;) -- Michael Hoffman -- http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
Dave Benjamin wrote: You could use a combination of bound methods and the curry function defined in the Python Cookbook: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52549 The examples in the discussion do just that. Also, in the CVS version of Python, there's a new module called functional with a function called partial that does the same thing as far as I can tell. So, in the future, this function will probably be available in the standard library. Dave -- http://mail.python.org/mailman/listinfo/python-list
Re: why import wx doesn't work?
monkey wrote: I just learn to make a blank windows frame with python and wxpython. I found the statment import wx cannot work as the original from wxPython.wx import *. I see in the readme file of wxpython that if I install it as the default one, I can use import wx instead of the long one. What is wrong? The code pasted below: import wx # the default is from wxPython.wx import *, I change it and it just can't work. class MyApp(wxApp): ... Assuming you've installed a version of wxPython that is recent enough that import wx works (it's really unclear from what you've written above), then the problem you are facing is not using the namespace that you've now imported. Do this instead: class MyApp(wx.App): def OnInit(self): frame = wx.Frame(NULL, -1, Note that wx. before everything from wxPython... -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: dynamically generating temporary files through python/cgi
poisondart wrote:
Is there a way to dynamically generate temporary files (such as an
html, xml or text file) in Python?
I'm not sure if I'm explaining myself clearly as I've no clue how to
describe this mechanism. I've seen it on certain websites that will
generate a file under certain parameters (through forms) that will
dissapear (i.e. delete itself) after a specified amount of time. These
files usually have some phony string for their filenames...like it's
been md5 hashed or something.
Is there a group of library functions that allow this? I imagine that
if i manually go and allocate a bunch of timers to monitor files, it
would be really expensive in load. Or perhaps is this a client-side
mechanism?
Thanks,
- poisondart
hi there
first of you could use the tempfile
import tempfile
tempfile.mktemp('.thefileendingudlike')
i never really studied the cgi capability of python but for example in
php there is the posibility to serve a request with a mime formated
response such as html, gif, pdf, and so on. so if u want to generate
content dynamically u wouldn't need to store those files but generate
and send em on request without having to destroy them later on..
hope this is helpful
cheers
tc
--
http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
Cameron Laird wrote:
In article [EMAIL PROTECTED],
Peter Hansen [EMAIL PROTECTED] wrote:
This meets your requirements as stated:
def temp():
foo.var = 1
bind('a', temp)
def temp():
foo.var = 2
bind('b', temp)
del temp
Ewww! *When* is lambda going bye-bye? I apparently
haven't been paying close enough attention. Among other
considerations, I still instruct people to use lambda for
plenty of specific cases.
Well, IMNSHO, it's an empty threat that's been looming on the horizon
for several years now. ;) Most recently, Guido mentioned his desire to
remove the keyword in his post on Artima, which resulted in a huge debate:
http://www.artima.com/weblogs/viewpost.jsp?thread=98196
Note that in the OP's question, as with Peter's example above, you still
can't do it with lambda alone, since you can't mix expressions with
assignment. Nonetheless, lambda is nice for delaying binding, and
combined with a helper function that sets attributes, it can produce the
most concise solution:
bind('a', lambda: setattr(foo, 'var', 1))
bind('b', lambda: setattr(foo, 'var', 2))
The usual response is that you probably want to make a class anyway, and
use bound methods for this type of stuff. But I find that in GUI/async
programming, often you need a little dab of glue to connect events
between objects, and lambda provides a nice way to avoid
over-abstracting the problem.
We'll see how this all pans out in the next few years. I'm not too fond
of removing features from a language for purely aesthetic reasons, but
lambda's really stuck in a syntactic quandry due to the
statement/expression dichotomy, so I can understand to some extent
Guido's desire to remove it.
Dave
--
http://mail.python.org/mailman/listinfo/python-list
Re: anonymous functions/expressions without lambda?
Michael Hoffman wrote: Paul Miller wrote: While on the subject, is there an equivalent for methodcaller? ie. if I want to bind a function which calls a specific method of an object with a specific parameter? def funccaller(func, *args, **kwargs): def _return_func(): return func(*args, **kwargs) return _return_func ... And this time I actually tested it, and it works! ;) Wow! Amazing. Yer right, it works! Man, I LOVE this language. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is this a bug?
In article [EMAIL PROTECTED], Fredrik Lundh [EMAIL PROTECTED] wrote: mapping += to extend is a design mistake (I guess someone got a little carried away). There were two use cases that drove augmented assignment (I know you know this -- but other people probably do not): reallylongvariablename = reallylongvariablename + 1 hugearray = hugearray + tinyarray The latter was particularly coming from the Numeric types. The docs probably should clarify that augmented assignment is *NOT* necessarily the same as ``foo = foo + bar`` when ``foo`` is a mutable type. You can argue that you disagree with mapping ``+=`` to ``extend()``, but I don't think it's fair for you to flatly claim that it's a design mistake. -- Aahz ([EMAIL PROTECTED]) * http://www.pythoncraft.com/ It's 106 miles to Chicago. We have a full tank of gas, a half-pack of cigarettes, it's dark, and we're wearing sunglasses. Hit it. -- http://mail.python.org/mailman/listinfo/python-list
Re: Working with method-wrapper objects
Peer Dr. Griebel wrote: I think I was a little bit unspecific in my last mail. I would like to see some description about method-wrapper and wrapper_descriptor objects. I dont' understand the following behaviour: type([].__str__) type 'method-wrapper' type(object.__str__) type 'wrapper_descriptor' type(object().__str__) type 'method-wrapper' import inspect inspect.isroutine([].__str__) False inspect.isroutine(object.__str__) True inspect.isroutine(object().__str__) False Why has [].__str__ a different type than object.__str__? Why is object.__str__ a routine while object().__str__ not? And one again my question: Can I extract some more information about a methed-wrapper object. E.g. can I somehow determine the arg spec? Thanks Peer Isn't there anybody who has something to say about the issue? I think it's not only a problem with inspect. It is aproblem about old style classes vs. new style classes. It seems that the support for new style classes is not complete (yet). Some more investigation shows that also the module types is not universally usable. E.g. InstanceType is only usabel for instances of old classes. How do I test for instances of new classes? Thanks Peer -- http://mail.python.org/mailman/listinfo/python-list
Re: Can .py be complied?
[EMAIL PROTECTED] wrote:
IMO the fact that so many people ask
How can I create executables in Python on Windows
indicates that standard batteries included Windows Python
distribution is missing a vital battery. There are tools such as
py2exe, but this functionality should be built-in, so that a newbie to
Python can just download it, type
python -o foo.exe foo.py
at the command line, and get an executable, without any further effort.
Since this is about windows and windows users just want everything in
.exe form (no matter if it also contains spyware), and they don't care
about the size of it (they just want the damn exe) and since there is
zero chance that python will be included in the next windows
distribution but these people still want the exe (they do, really),
I think I have a convenient solution to give it to them.
/* small program in C in self extracting archive
*/
if (have_application (Python)) {
have_python:
system (python.exe my_application.py)
} else {
printf (This software requires python. Wait until all the
necessary components are being installed\n);
download_python_from_python_org();
system (install_python.exe);
goto have_python;
}
Seriously, people who want executables wouldn't notice the difference.
jfj
--
http://mail.python.org/mailman/listinfo/python-list
Re: regex over files
Bengt To be fairer, I think you'd want to hoist the re compilation out Bengt of the loop. The re module compiles and caches regular expressions, so I doubt it would affect the runtime of either version. Bengt But also to be fairer, maybe include the overhead of splitting Bengt correctly, at least for the simple case regex in my example -- or Bengt is a you-goofed post for me in the usenet forwarding queues Bengt somewhere still? ;-) I was just too lazy to incorporate (something like) your change. You will note that I was also lazy enough to simply steal your X file. wink Skip -- http://mail.python.org/mailman/listinfo/python-list
