surrogate characters.

new test specific to unicode (non-ascii name and filename).

Fix my previous commit (r85569).

filenames encoded to the filesystem encoding with surrogateescape error handler
(to support undecodable bytes), instead of UTF-8 in strict mode.

It occurs if the path contains surrogates.

* Expose the build flags to Python as sys.abiflags
* Shared library libpythonX.Y<abiflags>.so
* python-config --abiflags
* Make two distutils tests that failed with --enable-shared (even before this
  patch) succeed.
* Fix a few small style issues.

Patch by Sébastien Sablé.

filesystem encoding instead of utf-8.

imp_cache_from_source() encodes the input path to filesystem encoding and this
path is passed to make_compiled_pathname().

path

module path

importing encoded modules that do not depend on specific stdlib
modules being encoded in a certain way.

#9683: remove broken dead code dealing with nested arguments removed from Py3k, and update the docs and docstrings accordingly.

#2830: add html.escape() helper and move cgi.escape() uses in the standard library to it.  It defaults to quote=True and also escapes single quotes, which makes casual use safer.  The cgi.escape() interface is not touched, but emits a (silent) PendingDeprecationWarning.