[Python-Dev] Baffled by PyArg_ParseTupleAndKeywords modification (original) (raw)

Tim Peters tim.peters at gmail.com
Fri Feb 10 18:19:01 CET 2006

[Jeremy Hylton]

... I admit that I'm also puzzled by Jack's specific question. I don't understand why an array passed to PyArgParseTupleAndKeywords() would need to be declared as const. I observed the problem in my initial changes but didn't think very hard about the cause of the problem. Perhaps someone with better C/C++ standards chops can explain.

Oh, who cares? I predict "Jack's problem" would go away if we changed the declaration of PyArg_ParseTupleAndKeywords to what you intended to begin with:

PyAPI_FUNC(int) PyArg_ParseTupleAndKeywords(PyObject *, PyObject *, const char *, const char * const *, ...);

That is, declare the keywords argument as a pointer to const pointer to const char, rather than the current pointer to pointer to const char.

How about someone on a Linux box try that with gcc, and check it in if it solves Jack's problem (meaning that gcc stops whining about the original spelling of his original example).

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