[Tutor] Having a return when subprocess.Popen finishes

[Payal]

On Thu, Jul 08, 2010 at 09:04:54AM -0400, Paul VanGundy wrote:
> Hi All,
> 
> I'm trying to get data from subprocess.Popen. To be specific, I am
> trying to read a ping echo and take the output and assign it to a
> variable like below:
> 
> ping = subprocess.Popen("ping -c 5 %s" % (server),
> stdout=subprocess.PIPE, shell=True)

>>> import subprocess
>>> server = 'localhost'
>>> ping = subprocess.Popen("ping -c 5 %s" %
>>> (server),stdout=subprocess.PIPE, shell=True)
>>> ping.communicate()
('PING localhost (127.0.0.1) 56(84) bytes of data.\n64 bytes from
localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.044 ms\n64 bytes from
localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.046 ms\n64 bytes from
localhost (127.0.0.1): icmp_seq=3 ttl=64 time=0.052 ms\n64 bytes from
localhost (127.0.0.1): icmp_seq=4 ttl=64 time=0.046 ms\n64 bytes from
localhost (127.0.0.1): icmp_seq=5 ttl=64 time=0.049 ms\n\n--- localhost
ping statistics ---\n5 packets transmitted, 5 received, 0% packet loss,
time 3997ms\nrtt min/avg/max/mdev = 0.044/0.047/0.052/0.006 ms\n', None)
>>>

hth,
With warm regards,
-Payal
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