Message 181755 - Python tracker

And PyArg_ParseTupleAndKeywords() is even more slow.

$ ./python -m timeit "str(b'', 'utf-8', 'strict')"
1000000 loops, best of 3: 0.554 usec per loop
$ ./python -m timeit "str(object=b'', encoding='utf-8', errors='strict')"
1000000 loops, best of 3: 1.74 usec per loop