import pymysql
db=pymysql.connect (
    host='172.16.1.166',
    user='root',
    passwd='114514',
    database='TESTDB',
)
cursor=db.cursor()
sql="UPDATE EMPLOYEE SET AGE=AGE+1 WHERE SEX = '%c'" % 'M'
try:
    cursor.execute(sql)
    db.commit()
except:
    db.rollback()
db.close()