Cleanup a bit more references so test_urllibnet is stable (test_urllib2 is sometimes stable, at least in isolation)

Delete globals which contain variable information at the end of the test.
This makes the test stable (no reported leaks) when running regrtest -R
to find reference leaks.

so it is only executed once.  Otherwise the same search function is
repeated added to the codec search path when regrtest is run with -R
and leaks are reported.

Patch 1315161 sebastien blanchet

exception (e.g., passing in an illegal argument).

Applies patch #1314396.  Thanks Eric Blossom.

2. Allow binding of movement keys

[Patch #1094164] replaceChild(x,x) ends up removing x of the tree.  Add fix from Felix Rabe and a test case

[Patch #1350573] zlib.crc32 doesn't handle 0xffffffff seed.  Add tests and bugfix.  Bug reported by John Schmidt; bugfix by Danny Yoo.

Use "raise instance" instead of "raise class, args".

Modernize the code in other spots (bools, startswith()).

(Opens immediately if TAB is typed after '.')

updated after a keyset change.  Also, formatted ApplyKeyBindings()

or output file is a file name instead of a file object. This enables
unicode file names as arguments to uu.encode() and uu.decode().

in_file and out_file.

documented function once.