Unicode support.

'quotation mark', so I decided to use it instead of 'double-quote'.

manual.  Closes #1243553.

method still needs to support string exceptions, and allow None for the
third argument.  Documentation updates are needed, too.

  - Handle both frozenset() and frozenset([]).
  - Do not use singleton for frozenset subclasses.
  - Finalize the singleton.
  - Add test cases.
* Factor-out set_update_internal() from set_update().  Simplifies the
  code for several internal callers.
* Factor constant expressions out of loop in set_merge_internal().
* Minor comment touch-ups.

part also.

data structure instead of using dictionaries.  Reduces memory consumption
by 1/3 and provides modest speed-ups for most set operations.

(closes SF bug #1238210)

Documentation added about changes in 2.4 to basicConfig(), including documentation of the keyword arguments. A version change note was also added to the basic example.

[ 1231069 ] ioctl has problem with -ive request codes

by using the 'I' not the 'i' format code to PyArg_ParseTuple().

Backport candidate?  Maybe...

1.179): delete bogus __hasattr__ and __delattr__ methods on class Tk
that were breaking Tkdnd.

of unicode objects, so that codecs that do a str->str decoding won't promote
the result to unicode. This fixes SF bug #1241507.

for the implementation should be consulted
(thanks to Evelyn Mitchell for suggesting this)

In addition, long_pow() skipped a necessary (albeit extremely unlikely
to trigger) error check when converting an int modulus to long.

Alas, I was unable to write a test case that crashed due to either
cause.

Bugfix candidate.