Emphasize the ['x', 'y'] option for listing field names.  Remove PS2 prompts to make the examples cut-and-pasteable.

longer fails if zlib is not installed. Instead, the zipfile.ZIP_STORED
compression is used to create the ZipFile. Patch by Natalia B. Bidart.

in the _posixsubprocess C extension module it would unintentionally close the fds and raise
an error.

The fix is to charset.py, which was not doing the encoding to the
correct output character set when doing a body_encode for either
the shift-jis or euc-jp charsets.  There's also a fix for handling
a bytes input in encoders.py.

Patch by Michael Henry, comment changes by me.

when test_subprocess was run.

When a header was long enough to need to be split across lines, the
input charset name was used instead of the output charset name in
the encoded words.  This make a difference only for the two charsets
above.

Issue #11500: Fixed a bug in the os x proxy bypass code for fully qualified IP addresses in the proxy exception list.

Issue #11500: Fixed a bug in the os x proxy bypass code for fully qualified IP addresses in the proxy exception list

Patch by Scott Wilson.