> Ok so now i only get errors for "_Fast" tests
> am I correct in assuming that this is because i lack a C implementation?

If your errors look like the one below, then yes.


======================================================================
ERROR: test_from_iso_week_value_week (test.datetimetester.TestDate_Fast)
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Traceback (most recent call last):
  File "/Users/mdickinson/Python/cpython/Lib/test/datetimetester.py", line 1000, in test_from_iso_week_value_week
    self.assertRaises(ValueError, self.theclass.from_iso_week, year,
AttributeError: type object 'datetime.date' has no attribute 'from_iso_week'