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Editorial Team
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Asked: 2026-06-14T05:47:48+00:00

In python 2.x there is some motion to define classes in the new-style class

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In python 2.x there is some motion to define classes in the new-style

class Foo(object):

rather the old-style

class Foo:

For python 3.x I read that this ambiguity goes away. But I am not sure what this means.

Two questions:

  • What is the proper style for class definitions in python 3.x
  • What is the recommendation for class definitions for python 2.x code, that will eventually upgraded to python 3.x code
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1 Answer

  1. Editorial Team

    In Python 3 all class are “new-style”. Both syntaxes do the same thing in Python 3.x.

    What is the proper style for class definitions in python 3.x

    class Foo:

    What is the recommendation for class definitions for python 2.x code

    In Python 2.x the recommendation is to always use new-style classes when writing new code. This applies regardless of whether you plan to upgrade to Python 3.x or not.

    class Foo(object):
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