Issue #16884: updated logging documentation to include lastResort and use 'note' directives where appropriate.

In conformance with the documentation and the Python version.
Patch by Franck Michea.

a key whose repr raise an exception.

non-pydebug builds. Several extension modules now compile cleanly when
assert()s are enabled in standard builds (-DDEBUG flag).

TESTFN_UNDECODABLE, TESTFN_NONASCII of test.support from Python 3.4. Backport
tests on non-ASCII paths.

TESTFN_NONASCII of test.support from Python 3.4. Backport tests on non-ASCII
paths.

ASCII/surrogateescape codec is now used, instead of the locale encoding, to
decode the command line arguments. This change fixes inconsistencies with
os.fsencode() and os.fsdecode() because these operating systems announces an
ASCII locale encoding, whereas the ISO-8859-1 encoding is used in practice.

ASCII/surrogateescape codec is now used, instead of the locale encoding, to
decode the command line arguments. This change fixes inconsistencies with
os.fsencode() and os.fsdecode() because these operating systems announces an
ASCII locale encoding, whereas the ISO-8859-1 encoding is used in practice.

Initial patch by Martin Packman.

Patch by Martin Packman.