Bugs item #1563046, was opened at 2006-09-21 19:55
Message generated for change (Settings changed) made by ronaldoussoren
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Category: Macintosh
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Submitted By: Russell Owen (reowen)
>Assigned to: Ronald Oussoren (ronaldoussoren)
Summary: MacPython ignores user-installed Tcl/Tk
Initial Comment:
MacPython ignores any user-installed Framework Tcl/Tk. This is a
significant issue for Tcl/Tk users because the Tcl/Tk included with
Tiger is buggy and really shouldn't be used.
Bob Ippolito supplied me a recipe to fix _tkinter.so:
install_name_tool \
-change /System/Library/Frameworks/Tcl.framework/Versions/8.4/
Tcl \
/Library/Frameworks/Tcl.framework/Versions/8.4/Tcl \
-change /System/Library/Frameworks/Tk.framework/Versions/8.4/
Tk \
/Library/Frameworks/Tk.framework/Versions/8.4/Tk \
_tkinter.so
I encapsulated this recipe into the attached python script "fixtkinter.py",
which modifies _tkinter.so to use the user's Tcl/Tk, if found.
Please consider running this script while installing MacPython. If you
want any refinements to the script, I am happy to provide them (or feel
free to modify it yourself of course).
Subtleties:
- The script uses Carbon.Folder.FSFindFolder to find the "/Library/
Framework" directory, so it should work in any country.
- The script fixes the _tkinter.so for the python that executes the script
(finding it relative to the "os" module).
- The script silently exits without doing anything if no /Library/
Framework Tcl/Tk is found. Thus it is safe to run for all MacPython
installations.
- It can safely be run more than once; it silently does not modify
_tkinter.so file the second time.
- It finds the link using ...Tcl.Framework/Versions/Current but resolves
the link before modifying _tkinter.so. So if a user upgrades a major Tcl/
Tk version the _tkinter.so file will keep using the old version. I think this
is a good thing, since compatilibility is likely to be an issue.
- It only looks for a user-installed Tcl/Tk in "/Library/Frameworks"; it
does NOT look in the user's private library (~/Library). This was
intentional, but I'm not sure it was the right decision. I'm happy to
change it, but will want some advice on the best algorithm.
----------------------------------------------------------------------
Comment By: Ronald Oussoren (ronaldoussoren)
Date: 2006-09-23 20:52
Message:
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If this gets used (and that's a big if at the moment) it should not look in the
users private library folder, because the system might be used by multiple
users and a system wide install should not use files that happen to be in the
home directory of one of them.
I don't like using this script during installation but would prefer a slightly
different solution: ship this script in /Applications/MacPython 2.5 and tell
users about it in our documentation (the installer documentation, the
pythonmac.org FAQ and possibly the tkinter docs).
If Tiger's copy of Tk is really bad enough to avoid using it completely we
should find a way to ship a minimal copy of Tcl/Tk with our installer
(installed
into /Library/Frameworks/Python.framework/Versions/2.5/Frameworks/
{Tcl,Tk}.framework), again with your script installed in the applications
folder
for people that want to use a bleeding edge copy of Tk.
I'm not to keen on automaticly using the copy of Tk in /Library/Frameworks
because of the support issue this raises: it is hard enough to debug problems
as it is without users haveing slightly different library versions.
BTW. Carbon.Folder.FSFindFolder is a nice touch but not actually necessary, /
Library/Frameworks is named like that in all languages, the name you see in
the Finder might be different but that's because the Finder localizes the
names of a number of folders (hence the ".localized" file in a number of
folders).
----------------------------------------------------------------------
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