Comparing `func_t` instance to other types raises exception

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What steps will reproduce the problem?
1. Get a func_t instance (using idaapi.get_func)
2. Compare it to None

What is the expected output? What do you see instead?
I was expecting False to be returned, but an exception was raised instead.

What version of the product are you using? On what operating system?
IDA 6.7, Windows 8

Original issue reported on code.google.com by [email protected] on 31 Mar 2015 at 9:17