change isinstance(obj, (str, unicode)) to isinstance(obj, basestring) as suggested by Piotr O?arowski
change isinstance(obj, (str, unicode)) to isinstance(obj, basestring)
as suggested by Piotr O?arowski

maximusmai/sqlalchemy-migrate,Alwnikrotikz/sqlalchemy-migrate,aishee/sqlalchemy-migrate,AlanZatarain/sqlalchemy-migrate