guessing that urlparse() / urlunparse() use them.

Add tests of urldefrag().

Use integers in stat tuple, optionally floats in named fields.

call.  This caused mysterious crashes (hard to debug because it was
happening in a child process).

                types.StringType, inherit from list instead of
                UserList.

classes was called with three arguments.  This makes no sense, there's
no way to pass in the "modulo" 3rd argument as for __pow__, and
classic classes don't do this.  [SF bug 620179]

I don't want to backport this to 2.2.2, because it could break
existing code that has developed a work-around.  Code in 2.2.2 that
wants to use __ipow__ and wants to be forward compatible with 2.3
should be written like this:

  def __ipow__(self, exponent, modulo=None):
      ...

In build_extensions(), don't proceed if srcdir is None.  Probably
somebody who tried this on Windows. :-)

Will add test and backport.

uses bash and so does my 10.2 system.  "limit stacksize 2048" is the
right invocation for tcsh/csh.

There's no limit command near as I can tell.  Should be the bash
builtin ulimit command.

Ben.  If s is a byte string, make sure it can be converted to unicode
with the input codec, and from unicode with the output codec, or raise
a UnicodeError exception early.  Skip this test (and the unicode->byte
string conversion) when the charset is our faux 8bit raw charset.

must be a Charset instance, not a string.  The bug here was that
self._charset wasn't being converted to a Charset instance so later
.append() calls which used the default charset would break.

_split(): If the charset of the chunk is '8bit', return the chunk
unchanged.  We can't safely split it, so this is the avenue of least
harm.

8-bit data, we cannot split it safely, so return the original string
unchanged.

_is8bitstring(): Helper function which returns True when we have a
byte string that contains non-ascii characters (i.e. mysterious 8-bit
data).

which we know nothing else.

SF bug 585882.  Will forward-port.

(rev. 1.4 of distutils/fancy_getopt.py).