Hrvoje Niksic <[email protected]> writes: > [email protected] (Mark Wooding) writes: > >>> So even if the globals() dictionary is custom, its __setitem__ method is >>> *not* called. >> >> Fascinating. Thank you. > > In case it's not obvious, that is because CPython assumes the type for > many of its internal or semi-internal structures, and calls the > appropriate functions, such as dict.__setitem__ (PyDict_SetItem in C) > directly. So python doesn't break the encapsulation of dict itself, it > just takes the liberty to assume that globals() is a non-subclassed > dict, at least as far as __setitem__ is concerned.
But it doesn't make this assumption for locals(). -- Arnaud -- http://mail.python.org/mailman/listinfo/python-list
