In the re-Module which come with Python version 2.0 (Nov 28 11:10 re.py) the created MatchObjects cannot be copied with a deepcopy(). Switching back to the old "pre.py" as proposed in "re.py" makes everything work ok.
thought I'd check this one with python-dev before marking it as "won't fix". I cannot see any reason why anyone would even attempt to deepcopy match objects...
(cannot see any reason why anyone would use deepcopy for anything, but that's another story)