Just what it says on the label :

[...]
Traceback (most recent call last):
  File "./Lib/test/regrtest.py", line 618, in runtest_inner
    indirect_test()
  File
"/home/Pif/Téléchargement/Python-3.1.1/Python-3.1.1/Lib/test/test_cmd_l
    test.support.run_unittest(CmdLineTest)
  File
"/home/Pif/Téléchargement/Python-3.1.1/Python-3.1.1/Lib/test/support.py
    _run_suite(suite)
  File
"/home/Pif/Téléchargement/Python-3.1.1/Python-3.1.1/Lib/test/support.py
    raise TestFailed(err)
test.support.TestFailed: Traceback (most recent call last):
  File
"/home/Pif/Téléchargement/Python-3.1.1/Python-3.1.1/Lib/test/test_cmd_l
    self.assertTrue(path1.encode('ascii') in stdout)
AssertionError: False is not True


During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./Lib/test/regrtest.py", line 1222, in <module>
    main()
  File "./Lib/test/regrtest.py", line 425, in main
    testdir, huntrleaks)
  File "./Lib/test/regrtest.py", line 584, in runtest
    testdir, huntrleaks)
  File "./Lib/test/regrtest.py", line 638, in runtest_inner
    print("test", test, "failed --", msg)
UnicodeEncodeError: 'ascii' codec can't encode character '\xe9' in
position 54: ordinal not in range(128)
test test_cmd_line failed -- make: *** [test] Erreur 1

[...]


In my search for similar bugs, I only found a mac OSX/Python 3.0 issue
(http://bugs.python.org/issue4388)