can't encode characters

[XiaodiKong]

File "/usr/local/lib/python2.7/site-packages/mysql2udw-0.1.6-py2.7.egg/mysql2pgsql/lib/postgres_writer.py", line 152, in table_comment
return (' COMMENT ON TABLE %s is %s;' % ( tablename, QuotedString(comment).getquoted()))
UnicodeEncodeError: 'latin-1' codec can't encode characters in position 0-3: ordinal not in range(256)

[kworr]

Please add a test case to reproduce.