On Wed, Feb 1, 2012 at 9:03 AM, Duncan Booth <duncan.booth@invalid.invalid> wrote: > Abitrarily nested tuples of exceptions cannot contain loops so the code > simply needs to walk through the tuples until it finds a match.
Is this absolutely guaranteed? The C API for CPython provides: (Py2) http://docs.python.org/c-api/tuple.html#PyTuple_SetItem (Py3) http://docs.python.org/dev/c-api/tuple.html#PyTuple_SetItem which doesn't have massive warnings on it saying "USE THIS ONLY TO INITIALIZE A TUPLE" (compare, for instance, _PyTuple_Resize which does carry a similar warning). Is the assumption then that we're all adults, and that mutating a tuple is like passing a null pointer to an API function (aka "loaded gun in proximity to foot")? ChrisA -- http://mail.python.org/mailman/listinfo/python-list