steps to reproduce:

↪ mktmpenv -p /usr/bin/python2
(tmp-12d9fdf76f20762)↪ cd -
~/dev/pywikibot-core
(tmp-12d9fdf76f20762)↪ python setup.py install
[...]
(tmp-12d9fdf76f20762)↪ git rev-parse HEAD
3320f7ca9916074af54432e4cc2548b0d362bddd
(tmp-12d9fdf76f20762)↪ python --version
Python 2.7.9
(tmp-12d9fdf76f20762)↪ cd /tmp
(tmp-12d9fdf76f20762)↪ python
Python 2.7.9 (default, Dec 11 2014, 04:42:00)
[GCC 4.9.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.

from pywikibot import bot

WARNING: Configuration variable 'google_key' is defined but unknown. Misspelled? >>> bot.handle_args() Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/wieland/dev/virtualenvs/tmp-12d9fdf76f20762/lib/python2.7/site-packages/pywikibot-2.0b3-py2.7.egg/pywikibot/bot.py", line 778, in handle_args init_handlers() File "/home/wieland/dev/virtualenvs/tmp-12d9fdf76f20762/lib/python2.7/site-packages/pywikibot-2.0b3-py2.7.egg/pywikibot/bot.py", line 291, in init_handlers writelogheader() File "/home/wieland/dev/virtualenvs/tmp-12d9fdf76f20762/lib/python2.7/site-packages/pywikibot-2.0b3-py2.7.egg/pywikibot/bot.py", line 318, in writelogheader version.getversion(online=config.log_pywiki_repo_version).strip()) File "/home/wieland/dev/virtualenvs/tmp-12d9fdf76f20762/lib/python2.7/site-packages/pywikibot-2.0b3-py2.7.egg/pywikibot/version.py", line 42, in getversion data = dict(getversiondict()) # copy dict to prevent changes in 'cache' File "/home/wieland/dev/virtualenvs/tmp-12d9fdf76f20762/lib/python2.7/site-packages/pywikibot-2.0b3-py2.7.egg/pywikibot/version.py", line 86, in getversiondict datestring = time.strftime('%Y/%m/%d, %H:%M:%S', date) TypeError: argument must be 9-item sequence, not datetime.datetime