The fix for bug #1119418 (xrange() builtin accepts
keyword arg silently) included in Python 2.4.2c1+
breaks code that passes keyword argument(s) into
classes derived from the built-in set class, even if
those derived classes explictly accept those keyword
arguments and avoid passing them down to the built-in
base class.

Simplified version of code in attached
BuiltinSetKeywordArgumentsCheckBroken.py fails at (G)
due to bug #1119418 if version < 2.4.2c1; if version >=
2.4.2c1 (G) passes thanks to that bug fix, but instead
(H) incorrectly-in-my-view fails.

[Presume similar cases would fail for xrange and the
other classes mentioned in #1119418.]

  -- David Bruce

(Tested on 2.4, 2.4.2, 2.5a2 on linux2, win32.)