Question

Kind of related to this question:

https://stackoverflow.com/questions/8708525/how-to-check-if-mako-function-exist

I want to check if a function exists for a given class, but not inherited, so that the parent can called the child’s function, since otherwise it would result in an infinite recursion..

edit:

it actually gives a maximum stack level error, which is the same.

the equivalent code would be:

class A(object):
    def f(x):
        b = B()
        b.f()

class B(A):
    pass

a = A()
a.f()

i understand this is not clean or preferred, but it is what the template translates to, and I dunno how to check for it otherwise.

Answer 1

I want to check if a function exists for a given class, but not inherited

Yes, you can check the class dictionary directly. Either use the __dict__ attribute or the built-in vars() function::

>>> class A(object):
        def f(x):
            pass

>>> class B(A):
        def g(x):
            pass

>>> 'f' in vars(B)
False
>>> 'g' in vars(B)
True