Implementation method for python to judge linux process and kill process

As shown below:

'''
@author: Jacobpc
'''
import os
import sys
import subprocess
 
def get_process_id(name):
  child = subprocess.Popen(["pgrep","-f",name],stdout=subprocess.PIPE,shell=False)
  response = child.communicate()[0]
  return response
 
pid = get_process_id("python socialbanklog.py")
print pid
if not pid:
  print "no target pid to kill,please check"
  sys.exit(1)
 
result=os.system("kill -9 "+pid)
if result==0:
  print "execute kill success"
else:
  sys.exit(1)