Ways to get process PID numbers using Python _python

After saving as a. py file, run the script to add the process name later. For example: Python proinfo.py QQ can get information on the process of QQ, note that the case is not case-sensitive

Copy Code code as follows:

#-*-Encoding:utf-8-*-
Import OS
Import Sys
Import string
Import Psutil
Import re

def get_pid (name):
Process_list = Psutil.get_process_list ()
Regex = "pid= (\d+), \sname=\ '" + name + "\"
Print Regex
PID = 0
For line in Process_list:
Process_info = str (line)
Ini_regex = Re.compile (regex)
result = Ini_regex.search (process_info)
If result!= None:
PID = String.atoi (Result.group (1))
Print Result.group ()
Break
def main (argv):<br> name = argv[1]<br> get_pid (name)

if __name__ = = "__main__":
Main (SYS.ARGV)

Code Description:

1.import Psutil need to be installed to get the Linux process list

Copy Code code as follows:

Process_list = Psutil.get_process_list () #获取进程列表

2.import Re:python processing of regular modules

Copy Code code as follows:

Regex = "pid= (\d+), \sname=\ '" + name + "\" #组成string类型的正则表达式
Ini_regex = Re.compile (regex) #初始化正则表达式
result = Ini_regex.search (process_info) #正则表达式匹配
Result.group (0): The contents of the entire string matched to
Result.group (1): match the contents of the first ()