python - os.popen subprocess conversion -

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This snippet gives me the dotted quad of my BSD network interface. How would I use the subprocess module instead? 

  ifcfg_lines = os.popen ("/ sbin / ifconfig fxp0"). Readlines () x = string.split (ifcfg_lines [3]) [1]

It seems that I can not use subprocessation in the same way. I do not think I want shell = true or pipe. What should I do to index output?

Thank you. Poppin, PIPE ifcfg_lines = Popen ("/ sbin / ifconfig fxp0", from 

  subprocess imports

For a little more beauty, hide details: 

  DEF getBSDIP (): poppin import from the subprocess import, pipe import string = current ("/ sbin / ifconfig

if you are going to use subprocess Elegance to this is a little limited because you essentially have screencrap If you really want a general solution, then use the socket library, i.e. handle Python portability.

Often, when you are doing something like this, you are scripting scripts here. You see a little code and you want to have a better cleaner way to do this, that means you have to question your beliefs, and change the solution's algorithm or architecture


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