Python copy folders/kill process/start service

osop1.py

import os
import shutil

'''
administrator privliedge is needed
'''

def cpfolder(srcpath, dstpath):
    try:
        shutil.copytree(srcpath, dstpath)
    except FileExistsError:
        shutil.move(dstpath, dstpath+'_bak')
        # shutil.rmtree(dstpath)
        shutil.copytree(srcpath, dstpath)


def check_kill_process(pstring):
    for line in os.popen('tasklist | find "' + pstring + '"'):
        fields = line.split()
        pid = fields[1]
        if pid:
            print("%s process id is %s" % (pstring, pid))
            os.popen('taskkill /F /PID %s' % (pid))

def startservice(servicename):
    os.popen("net start " + servicename)