On my WinXP SP 1 system with Python2.4c1.msi installed
the testcase test_univnewlines.py fails:

Traceback (most recent call last):
  File "C:\Python24\Lib\test\test_univnewlines.py",
line 8, in -toplevel-
    raise test_support.TestSkipped, \
TestSkipped: This Python does not have universal
newline support

I assume Python on WinXP should have universal newline
support. This also causes 
test_subprocess.py to fail at line 334.

Furthermore my test_descr also fails, but I don't know
if it's related:

...
Testing methods...
Testing special operators...

Traceback (most recent call last):
  File "C:\Python24\Lib\test\test_descr.py", line 4065,
in -toplevel-
    test_main()
  File "C:\Python24\Lib\test\test_descr.py", line 4008,
in test_main
    specials()
  File "C:\Python24\Lib\test\test_descr.py", line 1875,
in specials
    print Letter('w')
PicklingError: Can't pickle <class '__main__.Letter'>:
attribute lookup __main__.Letter failed