Peter Otten a écrit : > Sylvain Ferriol wrote: > > >>can you explain to me what happened: >> >>class toto(object): >> eq = float.__eq__ >> >>t = toto() >> >>getattr(t,'eq') >>TypeError: descriptor '__eq__' for 'float' objects doesn't apply to >>'toto' object > > > float.__eq__ is probably implemented in C and its operation will make sense > only for instances of float or subclasses of float. Try > > >>>>class Toto(float): > > .... eq = float.__eq__ > .... > >>>>Toto().eq(42) > > False > i can not use it because: class toto(float): def __init__(self,a=None):pass
t=toto(a=3) TypeError: 'a' is an invalid keyword argument for this function > Peter -- http://mail.python.org/mailman/listinfo/python-list
