Comment 3 for bug 771196

StacktraceTop:
 PyDict_DelItem (op={'': '', '\x00': '\x00', 'pw_gid': 'pw_gid', '__lshift__': '__lshift__', 'n_sequence_fields': 'n_sequence_fields', 'zipimporter': 'zipimporter', '_charset': '_charset', 'prefix': 'prefix', 'all_feature_names': 'all_feature_names', 'types': 'types', 'csisolatin5': 'csisolatin5', 'findall': 'findall', '_from_iterable': '_from_iterable', 'aliases': 'aliases', 'ibm1140': 'ibm1140', '_filters': '_filters', 'Warnings': 'Warnings', 'macgreek': 'macgreek', '\xab': '\xab', 'umask': 'umask', 'file_info': 'file_info', 'TypeType': 'TypeType', 'makechar': 'makechar', 'EX_NOINPUT': 'EX_NOINPUT', '@': '@', 'PC_PRIO_IO': 'PC_PRIO_IO', '__instancecheck__': '__instancecheck__', '_Printer__name': '_Printer__name', 'envar': 'envar', 'iso_ir_199': 'iso_ir_199', 'getloadavg': 'getloadavg', 'euc_jis_2004': 'euc_jis_2004', '__oct__': '__oct__', 'NAME': 'NAME', 'isdir': 'isdir', 'ABDAY_6': 'ABDAY_6', 'ABDAY_5': 'ABDAY_5', 'ABDAY_4': 'ABDAY_4', '__nonzero__': '__nonzero__', 'ABDAY_2': 'ABDAY_2', 'RuntimeWarning': 'RuntimeWarning', 'de...(truncated), key='Icon') at ../Objects/dictobject.c:829
 string_dealloc (op='Icon') at ../Objects/stringobject.c:590
 tupledealloc (op=0xb767748c) at ../Objects/tupleobject.c:220
 code_dealloc (co=0xb7667d58) at ../Objects/codeobject.c:308
 func_dealloc (op=0xb740ce9c) at ../Objects/funcobject.c:454