Theerasak Photha wrote:
> I wrote this for someone else to take an object and list of types,
> then check if obj is one of those types,
This is already what isinstance(obj, tuple_of_types) does.
> raising an error otherwise.
>
> Is it enough to rely on side effects or absence thereof, or should I
> put return True in here somewhere?
What for ?
> def test_obj_type(obj, types):
> for type in types:
> if isinstance(obj, type):
> break
> else:
> raise ValueError, 'object is not in %s' % types
def checkinstanceof(obj, types):
if not isinstance(obj, types):
raise ValueError('object is not an instance of %s' % str(types))
Now the real question : what if the object is not an instance of any of
the types, but still support the expected interface ?
> -- Theerasak
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