Adding use_unicode=0 to the MySQL database connection string restores the behavior...

Adding use_unicode=0 to the MySQL database connection string restores the behavior, that unicode strings are returned instead of strings. If use_unicode=1 (default), sqlalchemy requests unicode strings from the MySQLdb backend (and does not do the conversion itself), however, since the tables are defined as 'varchar(x) binary' only binary string are returned and not converted to unicode.

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