luci-py: Making __file__ usage unicode safe.

client/tests/logging_utils_test.py

 #!/usr/bin/env python
 # Copyright 2015 The LUCI Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0
 # that can be found in the LICENSE file.
 
 import logging
 import os
 import subprocess
 import sys
 import tempfile
 import unittest
 import re
 
-THIS_FILE = os.path.abspath(__file__)
+THIS_FILE = os.path.abspath(__file__.decode(sys.getfilesystemencoding()))
 sys.path.insert(0, os.path.dirname(os.path.dirname(THIS_FILE)))
 
 from third_party.depot_tools import fix_encoding
 from utils import file_path
 from utils import logging_utils
 
 
 # PID YYYY-MM-DD HH:MM:SS.MMM
 _LOG_HEADER = r'^%d \d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d\.\d\d\d' % os.getpid()
 _LOG_HEADER_PID = r'^\d+ \d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d\.\d\d\d'
@@ skipping 85 matching lines @@
   if phase:
     return getattr(sys.modules[__name__], phase)()
   verbose = '-v' in sys.argv
   logging.basicConfig(level=logging.DEBUG if verbose else logging.ERROR)
   unittest.main()
 
 
 if __name__ == '__main__':
   fix_encoding.fix_encoding()
   sys.exit(main())