Exception occurred in traits notification handler for object: <Preferences object at 0x40c19b0>, trait: last_name, old value: value, new value: TestUÜöser
Traceback (most recent call last):
File "lib/python2.7/site-packages/traits/trait_notifiers.py", line 340, in __call__
self.handler( *args )
File "lib/python2.7/site-packages/apptools/preferences/preferences_helper.py", line 71, in _anytrait_changed
self.preferences.set('%s.%s' % (self._get_path(), trait_name), new)
File "lib/python2.7/site-packages/apptools/preferences/scoped_preferences.py", line 166, in set
node.set(path, value)
File "lib/python2.7/site-packages/apptools/preferences/preferences.py", line 191, in set
node.set('.'.join(components[1:]), value)
File "lib/python2.7/site-packages/apptools/preferences/preferences.py", line 185, in set
self._set(path, value)
File "lib/python2.7/site-packages/apptools/preferences/preferences.py", line 546, in _set
value = str(value)
UnicodeEncodeError: 'ascii' codec can't encode characters in position 5-6: ordinal not in range(128)
