[Pyobjc-dev] 10.8, 10.9, NSDocument, TypeError, "cannot change a method"
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[Pyobjc-dev] 10.8, 10.9, NSDocument, TypeError, "cannot change a method"
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From: Erik v. B. <er...@le...> - 2013-08-28 13:26:16
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Hi
I'm aware this is a bit of a long shot, but maybe someone recognises this issue.
I have a python application generated with pyobjc on OSX 10.8.
- Stock python Python 2.7.2 (default, Oct 11 2012, 20:14:37)
- presumably also a stock objc 2.3.2a0, (at /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC/objc/__init__.py)
On 10.7 and 10.8 I can get a new window when I select New from the menu.
On 10.9 (the current developer release) I get an exception, "cannot change a method" - see below. The app continues to run, but there isn't much of a traceback.
Looking at the dump, I get the impression something goes wrong when NSDocumentController calls newDocument: My NSDocument subclass doesn't contain anything suspicious. I think I'm using up to date calls for reading and writing. Methods in my NSDocument subclass:
init
readFromURL_ofType_error_
writeSafelyToURL_ofType_forSaveOperation_error_
makeWindowControllers
+ a couple of callbacks for menus.
I've tested this with two independent projects, both get the same exception.
Any guesses would be welcome, thanks.
Erik
Exception Name: OC_PythonException
Description: <type 'exceptions.TypeError'>: cannot change a method
User Info: {
"__pyobjc_exc_traceback__" = "<traceback object at 0x112ea8680>";
"__pyobjc_exc_type__" = "<type 'exceptions.TypeError'>";
"__pyobjc_exc_value__" = "TypeError('cannot change a method',)";
}
0 CoreFoundation 0x00007fff886878ce __exceptionPreprocess + 174
1 libobjc.A.dylib 0x00007fff8f656f51 objc_exception_throw + 43
2 CoreFoundation 0x00007fff8872d619 -[NSException raise] + 9
3 _objc.so 0x000000010acb1366 PyObjCFFI_MakeClosure + 4418
4 libffi.dylib 0x00007fff91c02a1f ffi_closure_unix64_inner + 509
5 libffi.dylib 0x00007fff91c0211e ffi_closure_unix64 + 70
6 AppKit 0x00007fff888e0b0f -[NSDocumentController newDocument:] + 36
7 AppKit 0x00007fff88af90da -[NSApplication sendAction:to:from:] + 327
8 AppKit 0x00007fff88c1d548 -[NSMenuItem _corePerformAction] + 394
9 AppKit 0x00007fff88c1d234 -[NSCarbonMenuImpl performActionWithHighlightingForItemAtIndex:] + 117
10 AppKit 0x00007fff8893e72d -[NSMenu _internalPerformActionForItemAtIndex:] + 35
11 AppKit 0x00007fff8893e5a5 -[NSCarbonMenuImpl _carbonCommandProcessEvent:handlerCallRef:] + 104
12 AppKit 0x00007fff88c16442 NSSLMMenuEventHandler + 716
13 HIToolbox 0x00007fff8ad8a9a4 _ZL23DispatchEventToHandlersP14EventTargetRecP14OpaqueEventRefP14HandlerCallRec + 892
14 HIToolbox 0x00007fff8ad89f67 _ZL30SendEventToEventTargetInternalP14OpaqueEventRefP20OpaqueEventTargetRefP14HandlerCallRec + 385
15 HIToolbox 0x00007fff8ad9f4f0 SendEventToEventTarget + 40
16 HIToolbox 0x00007fff8add4380 _ZL18SendHICommandEventjPK9HICommandjjhPKvP20OpaqueEventTargetRefS5_PP14OpaqueEventRef + 420
17 HIToolbox 0x00007fff8ad7b818 SendMenuCommandWithContextAndModifiers + 59
18 HIToolbox 0x00007fff8ad7b7ba SendMenuItemSelectedEvent + 178
19 HIToolbox 0x00007fff8ad7b697 _ZL19FinishMenuSelectionP13SelectionDataP10MenuResultS2_ + 94
20 HIToolbox 0x00007fff8ad58d95 _ZL14MenuSelectCoreP8MenuData5PointdjPP13OpaqueMenuRefPt + 718
21 HIToolbox 0x00007fff8ad58261 _HandleMenuSelection2 + 446
22 AppKit 0x00007fff88ae8109 _NSHandleCarbonMenuEvent + 284
23 AppKit 0x00007fff88a13f1e _DPSNextEvent + 2170
24 AppKit 0x00007fff88a1328b -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 122
25 AppKit 0x00007fff88a0b53c -[NSApplication run] + 553
26 AppKit 0x00007fff889b5563 NSApplicationMain + 940
27 _AppKit.so 0x000000010cbfcbbe init_AppKit + 8609
28 Python 0x000000010ab025a9 PyEval_EvalFrameEx + 9244
29 Python 0x000000010ab00147 PyEval_EvalCodeEx + 1934
30 Python 0x000000010ab068df _PyEval_SliceIndex + 989
31 Python 0x000000010ab0263a PyEval_EvalFrameEx + 9389
32 Python 0x000000010ab00147 PyEval_EvalCodeEx + 1934
33 Python 0x000000010aaff9b3 PyEval_EvalCode + 54
34 Python 0x000000010ab3bc70 PyParser_ASTFromFile + 299
35 Python 0x000000010ab3bd3c PyRun_FileExFlags + 165
36 Python 0x000000010aafa830 _PyBuiltin_Init + 4737
37 Python 0x000000010ab025a9 PyEval_EvalFrameEx + 9244
38 Python 0x000000010ab00147 PyEval_EvalCodeEx + 1934
39 Python 0x000000010ab068df _PyEval_SliceIndex + 989
40 Python 0x000000010ab0263a PyEval_EvalFrameEx + 9389
41 Python 0x000000010ab00147 PyEval_EvalCodeEx + 1934
42 Python 0x000000010aaff9b3 PyEval_EvalCode + 54
43 Python 0x000000010ab3bc70 PyParser_ASTFromFile + 299
44 Python 0x000000010ab3bd3c PyRun_FileExFlags + 165
45 Python 0x000000010ab3b726 PyRun_SimpleFileExFlags + 410
46 Superpolator 0x000000010a988e79 main + 5965
47 Superpolator 0x000000010a987cad main + 1409
48 libdyld.dylib 0x00007fff8d81160d start + 1
49 ??? 0x0000000000000001 0x0 + 1
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