MERGE: Closes issue #13488: Some old preprocessors have problem with #define not in the first column

Issue #13444: When stdout has been closed explicitly, we should not attempt to flush it at shutdown and print an error.

This also adds a test for issue #5319, whose resolution introduced the issue.

Issue #13444: When stdout has been closed explicitly, we should not attempt to flush it at shutdown and print an error.

This also adds a test for issue #5319, whose resolution introduced the issue.

sched.py: fix test_queue by making sure that queue property returns an orderd list of upcoming events

(where unsetenv() doesn't return a value).

(should fix a failure on the OpenIndiana AMD64 buildbot)

on POSIX systems supporting anonymous memory mappings.  Patch by Charles-François Natali.

when it is linked to the ncurses library. It encodes also Unicode strings to
the locale encoding instead of UTF-8.

Issue #12856: Ensure child processes do not inherit the parent's random seed for filename generation in the tempfile module.
Patch by Brian Harring.

Issue #12856: Ensure child processes do not inherit the parent's random seed for filename generation in the tempfile module.
Patch by Brian Harring.

different than "strict" anymore. The caller was unable to compute the
size of the output buffer: it depends on the error handler.

Issue #9957: SpooledTemporaryFile.truncate() now accepts an optional size parameter, as other file-like objects.
Patch by Ryan Kelly.

mention of the CPython optimization hack.

mention of the CPython optimization hack.

Patch written by Charles-François Natali.