python formatting return value of subprocess -


i attempting on python 2.6.6 routing table of system (for interface) python list parse; cannot seem solve why entire result stored 1 variable.

the loop seems iterate on 1 characters @ time, while behavior wanted 1 line @ time.

what 1 character; short example below...

1 0 . 2 4 3

what i'd line return; can run other commands against each line..

10.243.186.1    0.0.0.0         255.255.255.255 uh        0 0          0 eth0 10.243.188.1    0.0.0.0         255.255.255.255 uh        0 0          0 eth0 10.243.184.0    10.243.186.1    255.255.255.128 ug        0 0          0 eth0

here code below...

def getnet(int):     int = 'eth0' ####### testing     cmd = ('route -n | grep ' + int)     routes = subprocess.popen([cmd], shell=true, stdout=subprocess.pipe)     routes, err = routes.communicate()     line in routes:         print line

routes in case bytestring contains entire output shell command. for character in astring statement produces 1 character @ time example in question demonstrates. lines list of strings instead, call lines = all_output.splitlines():

from subprocess import check_output  lines = check_output("a | b", shell=true, universal_newlines=true).splitlines()

here's a workaround if python version has no check_output(). if want read 1 line @ time while process still running, see python: read streaming input subprocess.communicate().

you try use os, ctypes modules, info instead of grepping output of external command.


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