how can I check if a given instance of a class belongs to a main class in python? [duplicate]

Question

suppose you have:

class F:
    pass

then you make an instance:

g=F()

how can i check if the instance g is derived from the main class F?

Answer 1

You can do this:

if isinstance(obj, MyClass):
     print "obj is my object"

So for your example:

if isinstance(g, F):
    print "obj is my object"

Use this at your peril, sometimes it's Easier to Ask Forgiveness than Permission.