[pymysql] не могу победить кодировки

...
conn = pymysql.connect(host=self.dbhost, user = self.dblogin, passwd = self.dbpass,db = self.dbname)
cursor = conn.cursor()            
self.uname = "тест"                                
info = "INSERT INTO `tst`.`test` (`id`, `uname`)\
       VALUES (NULL, '"+self.uname+"');"                        
cursor.execute(info)
cursor.close()
conn.close()
...