建站
咨詢
售后
建站咨詢
新聞中心
這里有您想知道的互聯(lián)網(wǎng)營銷解決方案
創(chuàng)新互聯(lián)Python教程：Python如何判斷程序是否運行
本篇文章介紹了python判斷程序進程是否存在的方法，希望對學習Python的朋友有幫助！
網(wǎng)站的建設(shè)成都創(chuàng)新互聯(lián)專注網(wǎng)站定制,經(jīng)驗豐富,不做模板,主營網(wǎng)站定制開發(fā).小程序定制開發(fā),H5頁面制作!給你煥然一新的設(shè)計體驗!已為成都廣告設(shè)計等企業(yè)提供專業(yè)服務(wù)。
Python如何判斷程序是否運行
1、進程名
import psutil
def judgeprocess(processname):
pl = psutil.pids()
for pid in pl:
if psutil.Process(pid).name() == processname:
print(pid)
break
else:
print("not found")
if judgeprocess('notepad++.exe') == 0:
print('success')
else:
pass2、進程ID
import errno
import os
import sys
def pid_exists(pid):
"""Check whether pid exists in the current process table.
UNIX only.
"""
if pid < 0:
return False
if pid == 0:
# According to "man 2 kill" PID 0 refers to every process
# in the process group of the calling process.
# On certain systems 0 is a valid PID but we have no way
# to know that in a portable fashion.
raise ValueError('invalid PID 0')
try:
os.kill(pid, 0)
except OSError as err:
if err.errno == errno.ESRCH:
# ESRCH == No such process
return False
elif err.errno == errno.EPERM:
# EPERM clearly means there's a process to deny access to
return True
else:
# According to "man 2 kill" possible error values are
# (EINVAL, EPERM, ESRCH)
raise
else:
return True推薦學習《Python教程》。
當前標題：創(chuàng)新互聯(lián)Python教程：Python如何判斷程序是否運行
網(wǎng)頁網(wǎng)址：http://m.fisionsoft.com.cn/article/djieddd.html
