python 根据端口号杀死kill 在linux部署的进程

import subprocess
import os
def getPid(port):
    """获取进程pid"""
    try:
        back = subprocess.Popen("""lsof -i:%s | awk 'NR==2{print $2}'""" % (port), shell=True, stdout=subprocess.PIPE,
                                stderr=subprocess.PIPE).communicate()
        data = back[0].decode().split('\n')
    except Exception as e:
        print('error:', e)
        data = []
    print('端口对应的pid:', data)
    return data


def killPid(pid):
    """杀死进程"""
    cmd = "kill -s 9 {}".format(pid)
    print(cmd)
    result = os.system(cmd)
    if result == 0:
        print("kill {} success".format(pid))
    else:
        print("kill {} error".format(pid))
    print('- -- -- --- ---- --- --- ---- --- --- -- --')
    print('end')


def run(port):
    data = getPid(port)
    pid = data[0]
    print('pid:', pid)
    print('pid:', len(pid))
    if len(pid) > 0:
        killPid(pid)
    else:
        print('未查到端口-{}进程:'.format(port))


run(8001)