Why the super class is empty when define child class?

 

This question already has an answer here:

  • What is the difference between old style and new style classes in Python? 9 answers

    • In Python 2, not specifying a parent class creates an old-style class. Explicitly inheriting from object creates a new-style class.

    (There is no difference between class Foo and class Foo() that I know of. Both just result in an old-style class with no parent.)

    In Python 3, all three syntaxes result in a new-style class; there's no difference.

    See the following posts:

  • https://wiki.python.org/moin/NewClassVsClassicClass

  • What is the difference between old style and new style classes in Python?

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