2008/10/3 Tim Rowe <[EMAIL PROTECTED]>: > As others have said, no. What nobody seems to have said yet is why. If > Y descends from X, you are saying that Y is an X; that a Y can be used > anywhere an X can. If Y doesn't support some methods of X then it is > *not* an X, and *can't* be used anywhere an X can.
See <http://en.wikipedia.org/wiki/Liskov_substitution_principle>. -- Cheers, Simon B. [EMAIL PROTECTED] http://www.brunningonline.net/simon/blog/ GTalk: simon.brunning | MSN: small_values | Yahoo: smallvalues | Twitter: brunns | Facebook: http://tinyurl.com/6f47zo -- http://mail.python.org/mailman/listinfo/python-list
