I made an update of my pywikibot-core repository ( /usr/bin/git pullall) and now I have an error when editing my User page for tests :

Exception in thread Put-Thread:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 763, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/mnt/nfs/labstore-secondary-tools-project/herculebot/pywikibot-core/pywi                                                                                                 kibot/__init__.py", line 1409, in async_manager
    request(*args, **kwargs)
  File "/mnt/nfs/labstore-secondary-tools-project/herculebot/pywikibot-core/pywi                                                                                                 kibot/page.py", line 109, in handle
    func(self, *args, **kwargs)
  File "/mnt/nfs/labstore-secondary-tools-project/herculebot/pywikibot-core/pywi                                                                                                 kibot/page.py", line 1278, in _save
    summary = self._cosmetic_changes_hook(summary)
  File "/mnt/nfs/labstore-secondary-tools-project/herculebot/pywikibot-core/pywi                                                                                                 kibot/page.py", line 1325, in _cosmetic_changes_hook
    self.text = ccToolkit.change(old)
  File "/mnt/nfs/labstore-secondary-tools-project/herculebot/pywikibot-core/pywi                                                                                                 kibot/cosmetic_changes.py", line 301, in change
    new_text = self._change(text)
  File "/mnt/nfs/labstore-secondary-tools-project/herculebot/pywikibot-core/pywi                                                                                                 kibot/cosmetic_changes.py", line 295, in _change
    text = self.safe_execute(method, text)
  File "/mnt/nfs/labstore-secondary-tools-project/herculebot/pywikibot-core/pywi                                                                                                 kibot/cosmetic_changes.py", line 282, in safe_execute
    result = method(text)
  File "/mnt/nfs/labstore-secondary-tools-project/herculebot/pywikibot-core/pywi                                                                                                 kibot/cosmetic_changes.py", line 662, in removeEmptySections
    stripped_text = str(text)
UnicodeEncodeError: 'ascii' codec can't encode character u'\xea' in position 78:                                                                                                  ordinal not in range(128)