Unicode example

gistfile1.pytb

python pwb.py cosmetic_changes -family:bomb -lang:en-gb -page:Äöü

ATTENTION: You can run this script as a stand-alone for testing purposes.
However, the changes that are made are only minor, and other users
might get angry if you fill the version histories and watchlists with such
irrelevant changes. Some wikis prohibit stand-alone running.
Do you really want to continue? ([y]es, [N]o) y
Password for user BobBot on bomb:en-gb (no characters will be shown): 
Logging in to bomb:en-gb as BobBot
Retrieving 1 pages from bomb:en-gb.
Traceback (most recent call last):
  File "pwb.py", line 171, in <module>
    run_python_file(fn, argv, argvu)
  File "pwb.py", line 69, in run_python_file
    exec(compile(source, filename, "exec"), main_mod.__dict__)
  File "scripts/cosmetic_changes.py", line 909, in <module>
    main()
  File "scripts/cosmetic_changes.py", line 903, in main
    bot.run()
  File "/home/xzise/Programms/core/pywikibot/bot.py", line 934, in run
    self.treat(page)
  File "scripts/cosmetic_changes.py", line 848, in treat
    self.current_page = page
  File "/home/xzise/Programms/core/pywikibot/bot.py", line 861, in current_page
    msg = u'Working on %r' % page
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 5: ordinal not in range(128)
<type 'exceptions.UnicodeDecodeError'>