[Twisted-Python] what is a non-class class?

[Wolfgang Rohdewald]

Am Mittwoch, 3. September 2014, 00:29:59 schrieb Glyph:
> > That is my problem. How do I know if the object is of a non-class class?
> 
> isinstance(something, (types.ClassType, type)).

but that will make it possible to attach a method even to type "int"

Python2:

>>> isinstance(int, type)
True

> >>> isinstance(object, type)
> True
> >>> isinstance(object(), type)
> False
> 

Sure but the test only gets the class and it should certainly not instantiate it.

Meanwhile I believe it is best to simply remove the test since python itself
will reject most:

>>> a=int
>>> a.x=5
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: can't set attributes of built-in/extension type 'int'


-- 
Wolfgang