Mailman 3 November 2001 - Pythonmac-SIG

Re: [Pythonmac-SIG] ObjC stuff
by Jack Jansen March 20, 2003

March 20, 2003

Recently, Steve Spicklemire <steve(a)spvi.com> said: > So it's in CVS somewhere? I'll do a check-out and see if I can find it. I don't know, Steven Majewski may know (I think he is the one who looked at it). If it isn't in the repository it probably should be, preferrably in the Modules directory (because it is useful for non-Mac users) but if there's objections against that we'll put it in the Mac/Modules dir. > I just ordered CW-6 today so I might be able to pitch in a bit. While very useful for other things (like MacPython development) you don't need it for OSX unix-Python development: this is all make and gcc-based (and you have those on your OSX developer disc). -- Jack Jansen | ++++ stop the execution of Mumia Abu-Jamal ++++ Jack.Jansen(a)oratrix.com | ++++ if you agree copy these lines to your sig ++++ www.oratrix.nl/~jack | see http://www.xs4all.nl/~tank/spg-l/sigaction.htm

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Speed issues with Applet/Applications?
by Sean Hummel April 12, 2002

April 12, 2002

Hi, I wrote a script which allows me to decompress from a .ZIP file, and appropriately sizing names of files that are longer than 31 characters. However the problem I am encountering, is that when I run the script in the Python IDE, it runs at full speed. When I run the script as a standalone application or applet, then it runs VERY SLOW! I am using Python 2.1, and I am using running this script on a PowerG4. So I am wondering if someone else has had this problem when using the application or applet, and/or if there is a good solution to this problem.

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Rated X for (spot)
by ryanwilcox＠mac.com Dec. 6, 2001

Dec. 6, 2001

I'm trying to make a set of scripts that will go back and forth between Classical Mac OS and OS X, using the Carbon Python. Now I have some questions: #1: Is there a way to tell what version of 'mac' I'm on? os.name() doesn't help much... ;) #2: Assuming I'm on X, is there a way to execute command-line programs? I found posix.execve(), but does this work on OS X?

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Re: [Pythonmac-SIG] copy() in macostools.py
by Jack Jansen Nov. 30, 2001

Nov. 30, 2001

If you're sure that the speed of macostools.copy() improves significantly by getting rid of the single read() call then there's something much more serious going on. Even though a Python function call is not trivial the whole process of going into read(), calling stdio fread(), seeing that we're at end-of-file and returning "" should not take more than a microsecond or two. Could you maybe do some measurements to see how expensive a read() call is while at end of file? > The implementation of file copying in macostools.copy() looks like this > > d = ifp.read(BUFSIZ) > while d: > ofp.write(d) > d = ifp.read(BUFSIZ) > > It should, however, look similar to this: > > d = ifp.read(BUFFER_SIZE) > while d: > ofp.write(d) > if (len(d) >= BUFFER_SIZE): > # last read did not encounter EOF > d = ifp.read(BUFFER_SIZE) > else: > # save useless but expensive read attempt > break; > > I think you get the point. > I have tried this in a Python program mainly concerned with copying files > that are smaller than 512 KB (=BUFSIZ), and the speed improved significantly > (because of half as much file input accesses). > > _______________________________________________ > Pythonmac-SIG maillist - Pythonmac-SIG(a)python.org > http://mail.python.org/mailman/listinfo/pythonmac-sig > -- Jack Jansen | ++++ stop the execution of Mumia Abu-Jamal ++++ Jack.Jansen(a)oratrix.com | ++++ if you agree copy these lines to your sig ++++ www.cwi.nl/~jack | see http://www.xs4all.nl/~tank/spg-l/sigaction.htm

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copy() in macostools.py
by Jakob Spies Nov. 30, 2001

Nov. 30, 2001

The implementation of file copying in macostools.copy() looks like this d = ifp.read(BUFSIZ) while d: ofp.write(d) d = ifp.read(BUFSIZ) It should, however, look similar to this: d = ifp.read(BUFFER_SIZE) while d: ofp.write(d) if (len(d) >= BUFFER_SIZE): # last read did not encounter EOF d = ifp.read(BUFFER_SIZE) else: # save useless but expensive read attempt break; I think you get the point. I have tried this in a Python program mainly concerned with copying files that are smaller than 512 KB (=BUFSIZ), and the speed improved significantly (because of half as much file input accesses).

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Installing modules
by Robert Brown Nov. 29, 2001

Nov. 29, 2001

How do I install modules in MacPython? I see Numpy is already there, but I'd like to use Scientific Python and VTK too. I'm setting up both Mac Python and command line Python. I've already got Scipy working with the command line version, now I'd like to have it in MacPython as well. Thanks, Robb Brown Seaman Family MR Research Centre Calgary, Alberta, Canada

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sys.executable not set properly when running as a framework
by Donovan Preston Nov. 29, 2001

Nov. 29, 2001

Hey, I've run in to this a couple of times since I have been using Python exclusively on OS X built as a Framework. When built and installed as a framework, python reports that sys.executable is: /Library/Frameworks/Python.framework/Versions/2.2/Python Which may or may not be technically right. But since certain scripts assume they can execute the value of sys.executable to get a new python interpreter, they fail. Instead, they need to be pointed to /Library/Frameworks/Python.framework/Versions/Current/bin/python.exe Not sure if and how this can be fixed, but it would be nice. Donovan

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Re: [Pythonmac-SIG] sys.executable not set properly when running as a framework
by Jack Jansen Nov. 28, 2001

Nov. 28, 2001

Donovan, could you submit a bug report about this through python.sourceforge.net? That way it'll remain on my to do list (or I'll offload it to someone else:-) and it won't get lost... -- Jack Jansen | ++++ stop the execution of Mumia Abu-Jamal ++++ Jack.Jansen(a)oratrix.com | ++++ if you agree copy these lines to your sig ++++ www.cwi.nl/~jack | see http://www.xs4all.nl/~tank/spg-l/sigaction.htm

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New MacPython 2.2b2 installer
by Jack Jansen Nov. 28, 2001

Nov. 28, 2001

Folks, a new MacPython 2.2b2 installer (build 116) is available at http://www.cwi.nl/ftp/jack/python/mac . The version of last weekend had 3 serious problems that should be solved in this one: - PythonCore was compiled with debug, making it slow - MacOS 8.1 support was broken, this should be fixed - Edit->Copy from the console window didn't work. If you installed the previous 2.2b2 you can install this one over it without any special precautions (I hope:-). Again, report serious problems within 24 hours, after that I'll announce this one wider. -- Jack Jansen | ++++ stop the execution of Mumia Abu-Jamal ++++ Jack.Jansen(a)oratrix.com | ++++ if you agree copy these lines to your sig ++++ www.cwi.nl/~jack | ++++ see http://www.xs4all.nl/~tank/ ++++

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Re: [Pythonmac-SIG] EasyDialog? ID Values?
by Jack Jansen Nov. 28, 2001

Nov. 28, 2001

> I have noticed that in EasyDialogs, there are ID numbers, that > appear to be associated with each dialog style? > > Is there any place, I can lookup these ID's? To see if there is > a different dialog window style, I'd like to implement? The DLOG resources are stored in PythonCore. If you're building from source you can find the "sources" in :Mac:Resources:Dialogs.rsrc. -- Jack Jansen | ++++ stop the execution of Mumia Abu-Jamal ++++ Jack.Jansen(a)oratrix.com | ++++ if you agree copy these lines to your sig ++++ www.cwi.nl/~jack | see http://www.xs4all.nl/~tank/spg-l/sigaction.htm

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