On Wed, Feb 24, 2010 at 12:44:55PM -0500, sarah.na...@utoronto.ca wrote:
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> For the last few weeks, I've been trying to fix a problem with the OS
> X port of a program I'm working on, PyGraphics; since I've had no
> luck, I'm here in search of your expertise.
>
> PyGraphics is a multithreaded module designed to be imported into and
> used in computer science students' programs. It works fine on Windows
> and Linux, and it used to function on OS X, too - but the release of
> Snow Leopard put an end to that. TkAqua does not permit mainloop() to
> be run on background threads, and since Wing (the IDE of choice for my
> university) is running the application, all threads related to
> PyGraphics are background threads by definition.
>
> Has anyone found any workarounds for this problem? I've looked into
> TkX11, and have recompiled Tcl/Tk with the --disable-aqua and --with-x
> configuration options, but that didn't help. There is a suggestion
> that the version of Python that ships with Snow Leopard doesn't play
> well with that version of Tk, but I've not found much documentation to
> confirm or deny that possibility. Right now, the most viable option
> appears to be rewriting the program to offer an unthreaded version to
> Mac students, but that's just sad.
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I chatted a bit with Jeff Hobbes about this. We all agree that
Snow Leopard has symptoms. In rough terms, they have to do with
interfaces; on its own, the Cocoa-based, fully-64-bit Tk is
alleged to pass all pertinent tests. Summary advice: ".... try
ActiveTcl with local python, or ActivePython ..."
My impression: this is a solvable problem, but someone might do
well to enlist explicitly the engagement of the ActivePython
specialists at ActiveTcl.
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