Fix issue22245 - Fix urllib2_localnet test.

Do not aggresively close wfile in the do_GET method in the BasicAuthHandler.

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branch : 3.4
Issue #22191: Fix warnings.__all__.

Thanks to Jon Poler for the patch.

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branch : 3.4
Issue #22150: Fix deprecated-removed directive in Sphinx 1.2.

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branch : 3.4
Issue #19447: Add a test case to py_compile.compile() to make sure
it don't raise an exception if doraise is False.

Patch by Bohuslav "Slavek" Kabrda.

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branch : 3.4
Issue #19447: Use importlib.util.cache_from_source() instead of ``bad_coding + 'c'``.

Thanks to Arfrever Frehtes Taifersar Arahesis.

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branch : 3.4
Issue #21166: Prevent possible segfaults and other random failures of
python --generate-posix-vars in pybuilddir.txt build target by ensuring
that pybuilddir.txt is always regenerated when configure is run and
that the newly built skeleton python does not inadvertently import
modules from previously installed instances.

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branch : 3.4