TypeError: 'NoneType' object is not callable

class?Programer(object):
????hobby?=?"Play?Computer"

????def?__init__(self,name,age,weight):
????????self.name?=?name
????????self._age?=?age
????????self.__weight?=?weight

????@classmethod
????def?get_hobby(cls):
????????return?cls.hobby

????@property
????def?get_infor(self):
????????print("my?name?is?hh")

????def?get_weight(self):
????????return?self.__weight

class?BackenProgramer(Programer):
????def?__init__(self,name,age,weight,languge):
????????super(BackenProgramer,self).__init__(name,age,weight)
????????self.languge?=?languge
????def?get_infor(self):
????????print("hh?is?my?name")
????????
def?intudece(programer):
????if?isinstance(programer,Programer):
????????programer.get_infor()
????????

if?__name__=="__main__":
????programer?=?Programer('Alb',28,90)
????bcprogramer?=?BackenProgramer('Alber',25,80,'python')
????#print?(dir(programer))
????#print?(programer.__dict__)
????#print?(BackenProgramer.get_hobby())
????#programer.get_infor
????#print?(isinstance(programer,Programer))

????intudece(programer)
????bcprogramer.get_infor