Roundup supports Python versions 2.3 ff; this yields some compatibility
issues:

- the md5 and sha modules are deprecated as of Python 2.6,
  but the hashlib modules is not available before Python 2.5

- as of Python 2.6, the sets module is deprecated;
  the built-in set type should be used instead of sets.Set

This patch adds a compatibility layer to handle the Python version
issues; the modules in the anypy package provide only the functionality
which is in fact used by roundup.

test/test_anypy_hashlib.py now integrates nicely in run_tests.py; no
other changes (revert the other version first)

Maybe someone could apply this patch (updated to match rev 4159, minimal
changes); currently I can't do it myself...

BTW,

 from roundup.anypy.sets_ import set
 ...
 set(...)

should perform better than

 import sets
 sets.Set(...)

for at least two reasons:

- the builtin set type performs better than sets.Set
- dots are evaluated at run time
<http://wiki.python.org/moin/PythonSpeed/PerformanceTips#Avoidingdots...>

Updated patch against revision 4178; obsoletes all older patches.

Can *please* someone apply the patch (created with svn diff in the
source root directory) and commit it?  My sourceforge account is not
fixed yet, I can't do it myself.  IMO, we *should* get going with the
compatibility-with-current-Python issue.

The round.anypy package is added in setup.py.  The hashlib compatibility
is tested thoroughly, and if anyone considers it necessary, I can
provide a test for anypy.sets_, too.  Since "set" is a builtin type, I
renamed the "set" boolean variable in hyperdb.py to "do_set".

Applied in r4181, thanks.

One major outstanding issue is the failure of
test.test_sqlite.sqliteDBTest.testStringUnicode