# staticmethod() and classmethod()
# make it easier to call one class method
 
class ClassA(object):
    def test(this):
        print this
    test = staticmethod(test)
 
ClassA.test(4)  # 4
 
class ClassB(object):
    @classmethod
    def test(self, this):
        print this
 
ClassB.test(4)  # 4

>>> class T(object):
	def test():
		print "HI"
 
 
>>> T.test()
 
Traceback (most recent call last):
  File "<pyshell#4>", line 1, in <module>
    T.test()
TypeError: unbound method test() must be called with T instance as first argument (got nothing instead)
>>>

>>> class T(object):
	@staticmethod
	def test():
		print "HI"
 
 
>>> T.test()
HI
>>>

class Person(object):
 
    def __init__(self, name, age):
        self.name = name
        self.age = age
 
    def __str__(self):
        return "Person({name}, {age})".format(name=self.name, age=self.age)
 
    @staticmethod
    def from_sequence(seq):
        name, age = list(seq)
        return Person(name, age)
 
    @staticmethod
    def from_dict(dic):
        return Person(dic["name"], dic["age"])
 
if __name__ == "__main__":
    my_tuple = ("John", 32)
    my_dict = {"name":"Fred", "age":55}
 
    anna = Person("anna", 15)
    john = Person.from_sequence(my_tuple)
    fred = Person.from_dict(my_dict)
 
    for person in (anna, john, fred):
        print(person)