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Sun Nov 1 22:39:36 CET 2009 · https://mail.python.org/pipermail/python-dev/2009-November/093515.html

> As I said: Python 2 support is not only about supporting old versions of Python,
> but also supporting users of Python2-only modules. So 2.7 support will
> for the most part be a case not of supporting Python versions, but
> Python *users*. And contrary to what Antoine said, that *is* a good
> reason to backport it.

FWIW, I support backporting the nonlocal-keyword in 2.7.
All of the reasons for introducting nonlocal to 3.x also apply to 2.x.
Using the nonlocal keyword in clear and explicit, especially
when compared to the existing workarounds which are not pretty.

Raymond

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[Python-Dev] nonlocal keyword in 2.x?