start and kill process by command promt

[shanti bhushan]

On Jun 21, 10:41 am, shanti bhushan <ershantibhus... at gmail.com> wrote:
> Hi,
> I want to invoke local wen server named mogoose, and kill it after
> some time by python script.
> Then i want to change the argument and invoke it again.
>
> I am able to do this with below code.
>
> import subprocess
> import time
>
> def invoke_server1():
>     s1ret=subprocess.Popen(r'C:\WINDOWS\system32\cmd.exe /C "D:
> \372\pythonweb\mongoose-2.8.exe >YourOutput.txt"')
>     print s1ret
>
> def invoke_server2():
>     s2ret=subprocess.Popen(r'C:\WINDOWS\system32\cmd.exe /C "D:
> \372\pythonweb\mongoose-2.8.exe -root D:\New1\ >YourOutput.txt"')
>     print s2ret
> def invoke_server3():
>     s3ret=subprocess.Popen(r'C:\WINDOWS\system32\cmd.exe /C "D:
> \372\pythonweb\mongoose-2.8.exe -root D:\New2\ >YourOutput.txt"')
>     print s3ret
>
> def kill_server():
>     killret=subprocess.Popen(r'C:\WINDOWS\system32\cmd.exe /c
> "taskkill /F /IM mongoose-2.8.exe >YourOutput1.txt"')
>     print killret
>
> kill_server()
> time.sleep(5)
> invoke_server1()
> time.sleep(5)
> kill_server()
> time.sleep(5)
> invoke_server2()
> time.sleep(5)
> kill_server()
> time.sleep(10)
> invoke_server3()
> time.sleep(5)
> kill_server()
>
> This works fine in python26 ,but when i use this code in one testing
> tool, server is invoked 1st time properly.but for second time it says
> process already occupied cannot access the process. I am not able to
> understand why subprocess.Popen(r'C:\WINDOWS\system32\cmd.exe /c
> "taskkill /F /IM mongoose-2.8.exe  is not working second time .Please
> guide me in this respect.
>
> Or please tell me is there any other way,to do same thing with python
> script that will start and kill windows process for my requirement.
>
> Regards
> Bhushan

i am getting following error message
"process cannot acces the file because it is being used by other
process"