('[' and ']' were not accepted in unquoted attribute values)

- cleaned up tests of character and entity reference decoding so the
  tests cover the documented relationships among handle_charref,
  handle_entityref, convert_charref, convert_codepoint, and
  convert_entityref, without bringing up Unicode issues that sgmllib
  cannot be involved in

Make it possible to run test_subprocess.py on Python 2.2, which lacks test_support.is_resource_enabled.

users how to avoid updates to their shell profile.

both a subclass of Warning and a subclass of types.ClassType.  The latter is no
longer true thanks to new-style exceptions.

Closes bug #1510580.  Thanks to AMK for the test.

Test for correct lineno on list, tuple, dict literals.

The problem of checking too eagerly for recursive calls is the
following: if a RuntimeError is caused by recursion, and if code needs
to normalize it immediately (as in the 2nd test), then
PyErr_NormalizeException() needs a call to the RuntimeError class to
instantiate it, and this hits the recursion limit again...  causing
PyErr_NormalizeException() to never finish.

Moved this particular recursion check to slot_tp_call(), which is not
involved in instantiating built-in exceptions.

Backport candidate.

constructor, meaning it is treated as *args, not as a single argument.  This
means using the 'message' attribute won't work (until Py3K comes around),
and so one must grab from 'arg' to get the error number.

(http://python.org/sf/1295808)

reference API in pysqlite 2.2.1.

Bumbed pysqlite version number to upcoming pysqlite 2.3.1 release.

os.environ (setting envar COLUMNS), which at least caused
test_float_default() to fail if the tests were run more than once.

This repairs the test_optparse -R failures Neal reported on
python-dev.  It also explains some seemingly bizarre test_optparse
failures we saw a couple weeks ago on the buildbots, when
test_optparse failed due to test_file failing to clean up after
itself, and then test_optparse failed in an entirely different
way when regrtest's -w option ran test_optparse a second time.
It's now obvious that make_parser() permanently changing os.environ
was responsible for the second half of that.

Use ctypes.util.find_library to locate the C runtime library
on platforms where is returns useful results.