Add abc.ABC class?

[benjaminp]

Originally reported by: Antoine Pitrou (Bitbucket: pitrou, GitHub: pitrou)

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It would be nice to add an implementation of abc.ABC, in order to make it easier to implement ABCs in 2-and-3 compatible code.

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• Bitbucket: https://bitbucket.org/gutworth/six/issue/119

[benjaminp]

I suppose you would only need such a thing on Python 2.6.

[benjaminp]

Original comment by Antoine Pitrou (Bitbucket: pitrou, GitHub: pitrou):

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Does the new metaclass syntax work on 2.7? I forget. But, yes, I need 2.6 compatibility :-)

[benjaminp]

The syntax doesn't work, but there is an abc module.

[benjaminp]

Original comment by Antoine Pitrou (Bitbucket: pitrou, GitHub: pitrou):

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Well, 2.6 has an abc module too. What's missing is the ability to easily write ABCs that work on both Python 2 and Python 3.

[benjaminp]

What exactly is missing then?

[benjaminp]

Original comment by Matthias Liebig (Bitbucket: mliebig, GitHub: Unknown):

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Python 3.4 provides the following class in that module, which Antoine would like to see in six:

#!python

class ABC(metaclass=ABCMeta): pass