Reminder:
Prefix the commit msg with bpo-28180 before merging.

Is the "C.UTF-8" locale available on Android?

Android has the "C.UTF-8" and "C" locales, see setlocale.

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

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With the implementation of _Py_SetLocaleFromEnv(), the Android specific code path in the implementation of PEP 538 is now limited to _Py_SetLocaleFromEnv() itself.

When one of the locale envt variable is set to 'C', 'POSIX' or an invalid locale, then locale coercion is done with the corresponding warnings printed as for the other *nix platforms, and this can be overriden with the envt variable PYTHONCOERCECLOCALE.

I have made the requested changes; please review again.

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@ncoghlan: please review the changes made to this pull request.

@xdegaye I'm wondering if we should actually add a short NEWS entry for this, though - that way there will be a clearer record as to when we consolidated the platform dependent handling of setting the locale from the environment, which should be useful for folks embedding CPython in larger applications.

Closing and re-opening the PR because travis was hanged without starting.
This seems to happen when a new commit is being pushed while travis is still running on the previous commit.