how to set timeout for os.popen

[MRAB]

On 2018-04-15 12:01, Ho Yeung Lee wrote:
> while 1:
> runner = os.popen("tracert -d www.hello.com")
> o=runner.read()
> print(o)
> runner.close()
> runner = os.popen("tracert -d www.hello.com")
> o=runner.read()
> print(o)
> runner.close()
> runner = os.popen("tracert -d www.hello.com")
> o=runner.read()
> print(o)
> runner.close()
> 
> 
> after running over 1 hour, it stop and not return in one of tracert
> 
> how to set timeout and know that this is timeout?
> 
Try using the 'subprocess' module instead.