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Python defines interface inheritance class Invalid syntax workaround

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Author: User
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Class S_all (METACLASS=ABC. Abcmeta):    #python2.7 Use this method to define interface inheritance    # __metaclass__ = abc. Abcmeta    @abc. Abstractmethod    def read (self):        Pass
pyhton2.7 will error, this method is used for python3+

pyhton2.7 Application Sub-method definition
Class S_all ():    #python2.7 Use this method to define interface inheritance    __metaclass__ = abc. Abcmeta    @abc. Abstractmethod    def read (self):        Pass

　　

Python defines interface inheritance class Invalid syntax workaround

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