In my case, it contains:
Traceback (most recent call last):
File "feedback.py", line 111, in <module>
tag_feedback()
File "feedback.py", line 49, in tag_feedback
subtitle="Tag the Finder selection with '{0}'".format(tag),
UnicodeEncodeError: 'ascii' codec can't encode character u'\u0308' in position 10: ordinal not in range(128)