The internal unicode database is now always used.

(after 5 years: see
  http://mail.python.org/pipermail/python-dev/2004-December/050193.html
)

namespace if it occurs as a free variable in a nested block.  This limitation
of the compiler has been lifted, and a new opcode introduced (DELETE_DEREF).

This sample was valid in 2.6, but fails to compile in 3.x without this change::

   >>> def f():
   ...     def print_error():
   ...        print(e)
   ...     try:
   ...        something
   ...     except Exception as e:
   ...        print_error()
   ...        # implicit "del e" here


This sample has always been invalid in Python, and now works::

   >>> def outer(x):
   ...     def inner():
   ...        return x
   ...     inner()
   ...     del x

There is no need to bump the PYC magic number: the new opcode is used
for code that did not compile before.

Fix issue 9794: adds context manager protocol to socket.socket so that socket.create_connection() can be used with the 'with' statement.

- The entry about shutil.copytree is just a revert of r84524 which
looks like an unfinished edition.
- The use of gender-neutral language (s/his/their/) removes the
implicit assumption that programmer == male (change agreed by Antoine).
- Other changes should be uncontroversial fixes.

I haven’t rewrapped under 80 lines to keep the diffs readable; I’ll
rewrap later.

(It seems that I am the first SWIG user to try python 3.2...)

error handler, or strict error handler on Windows.

 * Rewrite os.fsencode() documentation
 * Improve os.fsencode and os.fsdecode() tests using the new PYTHONFSENCODING
   environment variable

(Also fix a name ordering in the ACKS file.)

filesystem encoding.

initfsencoding() displays also a better error message if get_codeset() failed.

fix issue #8866: parameters passed to socket.getaddrinfo can now be specified as single keyword arguments.

and make it return the file descriptor.