function name is undefined in python class [duplicate]

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Since test() doesn’t know who is abc, that msg NameError: global name 'abc' is not defined you see should happen when you invoke b.test() (calling b.abc() is fine), change it to:

class a:
    def abc(self):
        print "haha" 
    def test(self):
        self.abc()  
        # abc()

b = a()
b.abc() #  'haha' is printed
b.test() # 'haha' is printed

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