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
