Web Reference: To summarize the contents of other (already good!) answers, isinstance caters for inheritance (an instance of a derived class is an instance of a base class, too), while checking for equality of type does not (it demands identity of types and rejects instances of subtypes, AKA subclasses). Normally, in Python, you want your code to support inheritance, of course (since inheritance is so handy ... Jun 26, 2012 · if type(var) is type(1): ... As expected, pep8 complains about this recommending usage of isinstance(). Now, the problem is that the numbers module was added in Python 2.6 and I need to write code that works with Python 2.5+ So if isinstance(var, Numbers.number) is not a solution. Which would be the proper solution in this case? Can someone give me an explanation why isinstance () returns True in the following case? I expected False, when writing the code. print isinstance (True, (float, int)) True My guess would be that its
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