$ ./python -Wd -3 -m test.regrtest -v test_logging
== CPython 2.7.2+ (2.7:39573be48b4a, Nov 6 2011, 17:13:44) [GCC 4.6.1]
==   Linux-3.0.0-12-generic-i686-with-debian-wheezy-sid little-endian
==   /home/wolf/dev/py/wide-2.7/build/test_python_6508
Testing with flags: sys.flags(debug=0, py3k_warning=1, division_warning=1, division_new=0, inspect=0, interactive=0, optimize=0, dont_write_bytecode=0, no_user_site=0, no_site=0, ignore_environment=0, tabcheck=1, verbose=0, unicode=0, bytes_warning=0)
test_logging
[...]
test_listen_config_10_ok (test.test_logging.ConfigDictTest) ... /home/wolf/dev/py/wide-2.7/Lib/logging/config.py:599: UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal
  if name in existing:
ok
[...]

----------------------------------------------------------------------
Ran 43 tests in 2.328s

OK
1 test OK.