[Python] Fetchone get numeric data's type is not correct

 
import CUBRIDdb
import unittest

class FetchoneTest(unittest.TestCase):
        def test_numeric(self):
                print "test_num"
                self.con = CUBRIDdb.connect("CUBRID:localhost:33000:demodb", "dba","")
                self.cur = self.con.cursor()
                sqlCreate = "create table numeric_db(c_int int, c_short short,c_numeric numeric,c_float float,c_double double,c_monetary monetary)"
                self.cur.execute(sqlCreate)
                data1 = 1.1
                sqlInsert = "insert into numeric_db(c_double) values (" +'%s'%data1 +")"
                self.cur.execute(sqlInsert)
                sqlSelect = "select * from numeric_db"
                self.cur.execute(sqlSelect)
                data2 = self.cur.fetchone()
                self.assertEquals(data1, data2[4])

if __name__ == '__main__':
        unittest.main()