Got this failure on Debian lenny amd64:

[1/1] test_signal
test test_signal failed -- Traceback (most recent call last):
  File "/home/stefan/cpython/Lib/test/test_signal.py", line 339, in test_pending
    """,  *signals)
  File "/home/stefan/cpython/Lib/test/test_signal.py", line 263, in check_wakeup
    assert_python_ok('-c', code)
  File "/home/stefan/cpython/Lib/test/script_helper.py", line 50, in assert_python_ok
    return _assert_python(True, *args, **env_vars)
  File "/home/stefan/cpython/Lib/test/script_helper.py", line 42, in _assert_python
    "stderr follows:\n%s" % (rc, err.decode('ascii', 'ignore')))
AssertionError: Process return code is 1, stderr follows:
Traceback (most recent call last):
  File "<string>", line 41, in <module>
  File "<string>", line 16, in check_signum
Exception: (10, 12) != (12, 10)

1 test failed:
    test_signal
[103837 refs]