It will probably be added back in Python 3.6, once its compatibility
issues are resolved; see [1] for more details.

[1] https://mail.python.org/pipermail/async-sig/2016-June/000045.html

Patch by A. Jesse Jiryu Davis

Patch by Susumu Koshiba.

Fix a "gcc -pendatic" warning.

Fix a "gcc -pedantic" warning on "buffer += n" because buffer type is void*.

Issue #26839: On Linux, os.urandom() now calls getrandom() with GRND_NONBLOCK
to fall back on reading /dev/urandom if the urandom entropy pool is not
initialized yet. Patch written by Colm Buckley.

Patch by SilentGhost.

- "See also" links to the new docs are now provided in the legacy pages
- links to setuptools documentation have been updated

(original patch by Susan Sun)