Crash on MacOS

[programLyrique]

With version 217d512 on MacOSX Yosemite 10.10.5

After typing a bit in the main edit box, the program crashed.

2016-09-16 11:41:24.461 Python[25949:1611038] An uncaught exception was raised
2016-09-16 11:41:24.462 Python[25949:1611038] -[__NSCFConstantString characterAtIndex:]: Range or index out of bounds
2016-09-16 11:41:24.462 Python[25949:1611038] (
    0   CoreFoundation                      0x00007fff930d903c __exceptionPreprocess + 172
    1   libobjc.A.dylib                     0x00007fff8e53a76e objc_exception_throw + 43
    2   CoreFoundation                      0x00007fff930d8eed +[NSException raise:format:] + 205
    3   CoreFoundation                      0x00007fff92fac0c6 -[__NSCFString characterAtIndex:] + 102
    4   Tk                                  0x00000001039905a8 TkpInitKeymapInfo + 751
    5   Tk                                  0x000000010399660b Tk_MacOSXSetupTkNotifier + 880
    6   Tcl                                 0x000000010386b49c Tcl_DoOneEvent + 316
    7   _tkinter.cpython-35m-darwin.so      0x00000001032965dd _tkinter_tkapp_mainloop + 255
    8   Python                              0x0000000102d463b5 PyCFunction_Call + 273
    9   Python                              0x0000000102da9ddf PyEval_EvalFrameEx + 22399
    10  Python                              0x0000000102dad26c _PyEval_EvalCodeWithName + 1884
    11  Python                              0x0000000102dadbab fast_function + 341
    12  Python                              0x0000000102da9c74 PyEval_EvalFrameEx + 22036
    13  Python                              0x0000000102dadb2b fast_function + 213
    14  Python                              0x0000000102da9c74 PyEval_EvalFrameEx + 22036
    15  Python                              0x0000000102dadb2b fast_function + 213
    16  Python                              0x0000000102da9c74 PyEval_EvalFrameEx + 22036
    17  Python                              0x0000000102dad26c _PyEval_EvalCodeWithName + 1884
    18  Python                              0x0000000102da45f7 PyEval_EvalCode + 81
    19  Python                              0x0000000102dca17d run_mod + 58
    20  Python                              0x0000000102dca45e PyRun_FileExFlags + 178
    21  Python                              0x0000000102dc9ab2 PyRun_SimpleFileExFlags + 469
    22  Python                              0x0000000102dddac6 Py_Main + 3342
    23  Python                              0x0000000102d00e27 Python + 7719
    24  libdyld.dylib                       0x00007fff8a46d5c9 start + 1
    25  ???                                 0x0000000000000002 0x0 + 2
)
2016-09-16 11:41:24.464 Python[25949:1611038] *** Terminating app due to uncaught exception 'NSRangeException', reason: '-[__NSCFConstantString characterAtIndex:]: Range or index out of bounds'
*** First throw call stack:
(
    0   CoreFoundation                      0x00007fff930d903c __exceptionPreprocess + 172
    1   libobjc.A.dylib                     0x00007fff8e53a76e objc_exception_throw + 43
    2   CoreFoundation                      0x00007fff930d8eed +[NSException raise:format:] + 205
    3   CoreFoundation                      0x00007fff92fac0c6 -[__NSCFString characterAtIndex:] + 102
    4   Tk                                  0x00000001039905a8 TkpInitKeymapInfo + 751
    5   Tk                                  0x000000010399660b Tk_MacOSXSetupTkNotifier + 880
    6   Tcl                                 0x000000010386b49c Tcl_DoOneEvent + 316
    7   _tkinter.cpython-35m-darwin.so      0x00000001032965dd _tkinter_tkapp_mainloop + 255
    8   Python                              0x0000000102d463b5 PyCFunction_Call + 273
    9   Python                              0x0000000102da9ddf PyEval_EvalFrameEx + 22399
    10  Python                              0x0000000102dad26c _PyEval_EvalCodeWithName + 1884
    11  Python                              0x0000000102dadbab fast_function + 341
    12  Python                              0x0000000102da9c74 PyEval_EvalFrameEx + 22036
    13  Python                              0x0000000102dadb2b fast_function + 213
    14  Python                              0x0000000102da9c74 PyEval_EvalFrameEx + 22036
    15  Python                              0x0000000102dadb2b fast_function + 213
    16  Python                              0x0000000102da9c74 PyEval_EvalFrameEx + 22036
    17  Python                              0x0000000102dad26c _PyEval_EvalCodeWithName + 1884
    18  Python                              0x0000000102da45f7 PyEval_EvalCode + 81
    19  Python                              0x0000000102dca17d run_mod + 58
    20  Python                              0x0000000102dca45e PyRun_FileExFlags + 178
    21  Python                              0x0000000102dc9ab2 PyRun_SimpleFileExFlags + 469
    22  Python                              0x0000000102dddac6 Py_Main + 3342
    23  Python                              0x0000000102d00e27 Python + 7719
    24  libdyld.dylib                       0x00007fff8a46d5c9 start + 1
    25  ???                                 0x0000000000000002 0x0 + 2
)
libc++abi.dylib: terminating with uncaught exception of type NSException
Abort trap: 6

[fredokun]

this one will be hard to reproduce for me... It seems to be an FFI problem with tkinter...
(there is no python exception here...).
I would suggest trying with another python
interpreter such as active python or the one on macports or brew...

[programLyrique]

After some more investigations, it seems the crash is triggered by inserting special characters, such as ^ and ` (which are characters that require a second character after them to be displayed).

Characters such that é and è work.

[matthiasbe]

Same issue occured to me with Mojave 10.14.5
python 3.7.4
MrPython 3.0.1-beta