Brian Szuter <[EMAIL PROTECTED]> added the comment:

abstract.c(PyNumber_AsSsize_t) shows this check of PyInt_AsSsize_t()'s
parameter:

980:    if (value == NULL)    
981:            return -1;    
982:     
983:    /* We're done if PyInt_AsSsize_t() returns without error. */   
984:    result = PyInt_AsSsize_t(value);

Similar checks of this parameter occur in the following places:
classobject.c(instance_length) 980
sliceobject.c(PySlice_GetIndices) 1020
sliceobject.c(PySlice_GetIndices) 123
sliceobject.c(PySlice_GetIndices) 115
ceval.c(PyEval_EvalFrameEx) 1179
_sre.c(match_getindex) 2772

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Python tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue4460>
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