Checking if A is superclass of B in Python
Question:
class p1(object): pass
class p2(p1): pass
So p2 is the subclass of p1. Is there a way to find out programmatically that p1 is [one of] the superclass[es] of p2 ?
Answers:
I think you meant to use “class” instead of “def”.. 🙂 Anyway, try p2.__bases__
Yes, there is way. You can use a issubclass function.
As follows:
class p1(object):pass
class p2(p1):pass
issubclass(p2, p1)
Depending on what you’re trying to do, the “mro” method can also be useful.
using <class>.__bases__ seems to be what you’re looking for…
>>> class p1(object): pass
>>> class p2(p1): pass
>>> p2.__bases__
(<class '__main__.p1'>,)
class p1(object): pass
class p2(p1): pass
So p2 is the subclass of p1. Is there a way to find out programmatically that p1 is [one of] the superclass[es] of p2 ?
I think you meant to use “class” instead of “def”.. 🙂 Anyway, try p2.__bases__
Yes, there is way. You can use a issubclass function.
As follows:
class p1(object):pass
class p2(p1):pass
issubclass(p2, p1)
Depending on what you’re trying to do, the “mro” method can also be useful.
using <class>.__bases__ seems to be what you’re looking for…
>>> class p1(object): pass
>>> class p2(p1): pass
>>> p2.__bases__
(<class '__main__.p1'>,)