test_types_basic.py 文件源码

def testBinaryEmptyString(self):
        # test to make sure an empty Binary is converted to an empty string
        if sys.version_info[0] < 3:
            b = psycopg2.Binary('')
            self.assertEqual(str(b), "''::bytea")
        else:
            b = psycopg2.Binary(bytes([]))
            self.assertEqual(str(b), "''::bytea")