Python Essential Reference, Second Edition

Converting Data from Python to C

The following functions are used to convert arguments passed from Python to C.

					int PyArg_ParseTuple(PyObject *
					args, char *
					format, ...);
				

Parses a tuple of objects in args into a series of C variables. format is a format string containing zero or more of the specifier strings from Table B.1, which describes the expected contents of args . All the remaining arguments contain the addresses of C variables into which the results will be placed. The order and types of these arguments must match the specifiers used in format and use the C datatypes listed in Table B.1. Zero is returned if the arguments could not be parsed.

					int PyArg_ParseTupleAndKeywords(PyObject *
					args, PyObject *
					kwdict,
					char *
					format, char ** ...