.. cfunction:: int PyObject_CopyToObject(PyObject *obj, void *buf, Py_ssize_t len, char fortran)

Copy *len* bytes of data pointed to by the contiguous chunk of memory

pointed to by *buf* into the buffer exported by obj. The buffer must of

course be writable. Return 0 on success and return -1 and raise an error

on failure. If the object does not have a writable buffer, then an error

is raised. If *fortran* is ``'F'``, then if the object is

multi-dimensional, then the data will be copied into the array in

Fortran-style (first dimension varies the fastest). If *fortran* is

``'C'``, then the data will be copied into the array in C-style (last

dimension varies the fastest). If *fortran* is ``'A'``, then it does not

matter and the copy will be made in whatever way is more efficient.