pymysql插入时间

cur.execute("insert into tb_form (w,sj,lb,intd,analysis)\
                                      values (%s,str_to_date(%s,'%%Y-%%m-%%d %%H:%%M:%%S'),%s,%s,%s)",
            (newpath,
             parse_time,#parse_time ='2015-1-3 00:01:02'
             cate,
             1,
             0
             )
            )
conn.commit()