"Fredrik Lundh" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Evan Simpson wrote: > >> In Python 2.4 the following works: >> >> >>> class G(dict): >> ... def __getitem__(self, k): >> ... return 'K' + k >> ... >> >>> g = G() >> >>> exec 'print x, y, z' in g >> Kx Ky Kz >> >>> >> >> ...while in Python 2.3 it fails with NameError: name 'x' is not defined.
> I don't think he added this purely by accident, As I remember, Raymond H. was responding to a request by someone who ran into that exception. In general, functions accepting a base class should at least accept subclasses of that baseclass. tjr -- http://mail.python.org/mailman/listinfo/python-list
