classmethods.py

class MyClass:
    @staticmethod
    def the_static_method():
        print("yeah")
    @classmethod
    def the_class_method(cls, x):
        print("class: %s, arg x: %s" % (cls,x))


class Person:
    name = ""
    nickname = ""

    def __init__(self, name="", nickname=""):
        self.name = name
        self.nickname = nickname

    @classmethod
    def from_string(cls, name_string):
        name, nickname = name_string.split(',')
        person = cls(name, nickname)
        return person