Can I pass class method as and a default argument to another class method

Question

I want to pass class method as and a default argument to another class method, so that I can reuse the method as a @classmethod:

@classmethod
cl         


        

Answer 1

Default argument values are computed during function definition, not during function call. So no, you can't. You can do the following, however:

def func2(self, aFunc = None):
    if aFunc is None:
        aFunc = self.func1
    ...

Answer 2

The way you are trying wont work, because Foo isnt defined yet.

class Foo:  
  @classmethod
  def func1(cls, x):
    print 'something: ', cls, x

def func2(cls, a_func=Foo.func1):
 a_func('test')

Foo.func2 = classmethod(func2)

Foo.func2()

Answer 3

You should write it like this:

class Foo(object):
    @classmethod
    def func1(cls, x):
        print x
    def func2(self, afunc=None):
        if afunc is None:
            afunc = self.func1
        afunc(4)

Though it would be helpful if you gave a little more info on what you are trying to do. There is probably a more elegant way to do this without classmethods.