I'm trying to debug a crash in a Python/Tkinter application that I am
unable to reproduce using equivalent Tcl/Tk code. I have a custom Tcl/Tk
extension library that implements an NSToolbar for Tk windows (using
Tk-Cocoa). In testing this extension, when I call the standard Cocoa
dialog to save a file, Python then crashes with a segfault.
Ordinarily these kinds of issues are reproducible in Tk itself using
Tcl/Tk itself, since the crash pertains to some bug in Tk. However, I am
not able to reproduce this issue with Tcl/Tk, just with Python/Tkinter.
This leads me to suspect the issue may lie somewhere within the
interaction between Python and Tk.
My build of Python is 2.7.1, built as 64/32-bit, and linked to the
system Tcl/Tk Cocoa frameworks (for Mac App Store compatibility). Tcl/Tk
is built with garbage-collection enabled; could this cause some issue
with Python, which I believe does not support Objective-C-based GC?
Here is my crashlog below. Any advice is appreciated.
0 com.apple.AppKit 0x00007fff8758d3d4 -[NSWindow
setLevel:] + 132
1 com.apple.Foundation 0x00007fff814d323c
__NSFireDelayedPerform + 404
2 com.apple.CoreFoundation 0x00007fff84dd9be8 __CFRunLoopRun + 6488
3 com.apple.CoreFoundation 0x00007fff84dd7dbf
CFRunLoopRunSpecific + 575
4 Tcl 0x0000000102da1466 Tcl_WaitForEvent +
299
5 Tcl 0x0000000102d7028a Tcl_DoOneEvent + 261
6 _tkinter.so 0x000000010184421d
Tkapp_CallDeallocArgs + 8781
7 org.python.python 0x00000001006bca8d PyEval_EvalFrameEx
+ 20797
8 org.python.python 0x00000001006becd6 PyEval_EvalCodeEx
+ 2118
9 org.python.python 0x00000001006bccb3 PyEval_EvalFrameEx
+ 21347
10 org.python.python 0x00000001006becd6 PyEval_EvalCodeEx
+ 2118
11 org.python.python 0x00000001006bedf6 PyEval_EvalCode + 54
12 org.python.python 0x00000001006e37fe PyRun_FileExFlags
+ 174
13 org.python.python 0x00000001006b4a9e _PyBuiltin_Init +
14894
14 org.python.python 0x00000001006bca8d PyEval_EvalFrameEx
+ 20797
15 org.python.python 0x00000001006becd6 PyEval_EvalCodeEx
+ 2118
16 org.python.python 0x00000001006bccb3 PyEval_EvalFrameEx
+ 21347
17 org.python.python 0x00000001006becd6 PyEval_EvalCodeEx
+ 2118
18 org.python.python 0x00000001006bedf6 PyEval_EvalCode + 54
19 org.python.python 0x00000001006e37fe PyRun_FileExFlags
+ 174
20 org.python.python 0x00000001006e3ab9
PyRun_SimpleFileExFlags + 489
21 com.codebykevin.quickwho-cbk 0x0000000100005856 start + 19074
22 com.codebykevin.quickwho-cbk 0x00000001000059c8 main + 229
23 com.codebykevin.quickwho-cbk 0x0000000100000e08 start + 52
--Kevin
--
Kevin Walzer
Code by Kevin
http://www.codebykevin.com
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