invalid hex escape sequences.

(the encoder already accepts them).

It doesn't matter if imp.find_module() fails with ImportError or IOError, but
it should not crash.

Remove a sleep to fix transient test failures. Use skewfactor of -3 to
make it work on systems that have 1 second precision for time.time().

Closes #11999
Refs #13254

"recursive-include" directive now recognizes both legal path separators.

Issue #12875: explicitly specify default value of the optional 'flags' argument to re.* functions. Closes #12875

when called with a timeout.  Patch by Arnaud Ysmal.

Issue #13340.

Closes #13340.

Closes #13254.

I won’t revert in 3.2, since Georg pulled this change in 3.2.2 and
released it.

Remove the error_callback which is not present in 2.7. Patch by Jyrki
Pulliainen.

#670664: Fix HTMLParser to correctly handle the content of ``<script>...</script>`` and ``<style>...</style>``.