python使用shell命令查看程序是否允许

programrun.py

def execshell(shell):
    exit_status, output = commands.getstatusoutput(shell)
    if int(exit_status) == 0:
        print('%s execute success!'%shell)
    else:
        print('%s execute error: exit_status [%s] err [%s]' % (shell, str(exit_status), output))
        # if shell error , exit python program
        exit()
    return exit_status, output

def _isrun(name，port):
    '''
    judge ssdb and sgame is running?
    :return:
    '''
    # name is program name, port is program run port
    ssdbshell = 'netstat -nptl | grep %s | grep %s | wc -l'%(name,port)
    exit_status, output = execshell(ssdbshell)
    if int(exit_status) == 0 and int(output)>=1:
        return True # the program is running
    return False