i'm having a hell of a time getting this to work. basically I want to be able to instantiate an object using either a list, or a string, but the class inherits from list.
if the class is instantiated with a string, then run a method over it to tokenize it in a meaningful way. so how come this doesn't work??? if I do this: a=TMP( 'some string' ) it does nothing more than list('some string') and seems to be ignoring the custom __new__ method. def convertDataToList( data ): return [1,2,3] class TMP(list): def __new__( cls, data ): if isinstance(data, basestring): new = convertDataToList( data ) return list.__new__( cls, new ) if isinstance(data, list): return list.__new__( cls, data ) -- http://mail.python.org/mailman/listinfo/python-list