After [[ https://github.com/wikimedia/pywikibot-core/commit/d064f91df8f1c45c7b0b5377cbc7305db3a1ae77#diff-2798b8491ffd4baa37c4bb01b9190eb7 | this commit ]] I have an issue with running pywikibot.data.api.Request() function containing unicode strings with non-ascii characters if 'site' property is not explicitly defined.
Say, this code
```
# -*- coding: utf-8 -*-
import pywikibot
site = pywikibot.getSite('ru', 'wikipedia')
r = pywikibot.data.api.Request(action='purge', titles=u'Россия')
```
returns
```
Traceback (most recent call last):
File "test.py", line 6, in <module>
r = pywikibot.data.api.Request(action='purge', titles=u'Россия')
File "/shared/pywikipedia/core/pywikibot/data/api.py", line 1108, in __init__
warn('Request() invoked without a site', RuntimeWarning, 2)
File "/usr/lib/python2.7/logging/__init__.py", line 1713, in _showwarning
logger.warning("%s", s)
File "/usr/lib/python2.7/logging/__init__.py", line 1164, in warning
self._log(WARNING, msg, args, **kwargs)
File "/usr/lib/python2.7/logging/__init__.py", line 1271, in _log
self.handle(record)
File "/usr/lib/python2.7/logging/__init__.py", line 1281, in handle
self.callHandlers(record)
File "/usr/lib/python2.7/logging/__init__.py", line 1321, in callHandlers
hdlr.handle(record)
File "/usr/lib/python2.7/logging/__init__.py", line 749, in handle
self.emit(record)
File "/shared/pywikipedia/core/pywikibot/userinterfaces/terminal_interface_base.py", line 494, in emit
('warn(', 'exceptions.', 'Warning)', 'Warning,'))
File "/shared/pywikipedia/core/pywikibot/userinterfaces/terminal_interface_base.py", line 493, in <genexpr>
s in msg for s in
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd0 in position 118: ordinal not in range(128)
<type 'exceptions.UnicodeDecodeError'>
```