In case of foreign language, using unicode characters, the error message may be
badly formated.
e.g.
Unknown error during import: <class 'odoo.exceptions.AccessError'>: เฉพาะผู้ดูแลร..
insted of
Unknown error during import: <class 'odoo.exceptions.AccessError'>: (u'\u0e40\u0e09\u0e1e\u0e32\u0e30\u0e1c\u0e39
opw-766580