Question

class A():
    class B():
       def Foo(self):
           print "Hello"
    class C():
       def Bar(self):
           print "Goodbye"
    def name(self):
        print "FooBar"

What I want to do is, within the Bar function is call the Foo function. How would I do that?

Answer 1

In Python, inner classes don’t have an implicit instance of the outer class associated with them. Without such an instance, you can’t call A‘s non-static methods from B or C.

If you do have such an instance, then simply use the dot notation:

class C():
   def Bar(self):
       self.a.name()
   ...

(where self.a is an instance of A.)

Alternatively, if A.name() can be made static, the following will also work:

class A(object):

    class C():
       def Bar(self):
           print "Goodbye"
           A.name()

    @staticmethod
    def name():
        print "FooBar"

A.C().Bar()