Comment #2 on issue 3599 by amar47s...@gmail.com: Apply 2to3 "idioms" fixer
to code base
http://code.google.com/p/sympy/issues/detail?id=3599
Hi! Sympy (and open-source) newbie here.
I'm going through the list of changes and checking them. (There are quite
a few.) The "type(x) is A" / "type(x) == A" to "isinstance(x, A)" is the
trickiest one for me. In most cases, I can be fairly sure that an exact
type check is not needed because I can see that A does not have any
subclasses that would change the result. However, it would be helpful if
there is a diagram or explanation of class hierarchies within SymPy that I
could look at. Does this summary of class hierarchies exist already?
Please excuse me if this is a silly question.
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