python监视mysql最大连接数

#!/usr/local/bin/python3.5
import pymysql
import time

sum = 0

while True:
#open db connection
db = pymysql.connect(‘localhost‘,‘root‘,‘abc-123‘,‘test‘)

#use cursor()
cursor = db.cursor()

#use execute() run sql
cursor.execute("show variables like ‘%max_connections%‘;")

#USE fetchone()
Max = cursor.fetchone()

cursor.execute("show global status like ‘Max_used_connections‘;")
History_max = cursor.fetchone()

cursor.execute("show global status like ‘Threads_connected‘;")
Currently = cursor.fetchone()

sum = sum + 1
print("\n--------------------------------\n")
print("统计日期 ：",time.strftime(‘%Y-%m-%d %H:%M:%S‘))
print("当前统计次数 ：",sum)
print("mysql最大连接数 ：",Max[1])
print("mysql历史最大连接数 ：",History_max[1])
print("mysql当前最大连接数 ：",Currently[1])

db.close()
time.sleep(5)