I want to find out all classmethods of class Something below by using code reflection.
With all classmethods i mean all methods which are decorated with @classmethod.
I don't actually know if that is the same.
class Something:
@classmethod
def a(cls):
print('a')
@staticmethod
def b(cls):
print('b')
def c(self):
print('c')
So in this case I expect getting a list which contains only 'a':
get_classmethod_names(Something) == ['a']
This can be as simple as iterating through the classes attributes and checking for classmethod objects:
In [1]: class Something:
...: @classmethod
...: def a(cls):
...: print('a')
...:
...: @staticmethod
...: def b(cls):
...: print('b')
...:
...: def c(self):
...: print('c')
...:
In [2]: [attr for attr, obj in vars(Something).items() if isinstance(obj, classmethod)]
Out[2]: ['a']
Note, if you care about inherited classmethods, then you have to check it for every class in your classe's method-resolution order, so:
In [3]: class BaseSomething:
...: @classmethod
...: def u(cls):
...: print('u')
...:
...: class Something(BaseSomething):
...: @classmethod
...: def a(cls):
...: print('a')
...:
...: @staticmethod
...: def b(cls):
...: print('b')
...:
...: def c(self):
...: print('c')
...:
In [4]: Something.mro()
Out[4]: [__main__.Something, __main__.BaseSomething, object]
In [5]: [
...: attr
...: for cls in Something.mro()
...: for attr, obj in vars(cls).items()
...: if isinstance(obj, classmethod)
...: ]
Out[5]: ['a', 'u']
