Reading STDOUT of subprocess

Question

Hello I want to read output of command which gives progress bar like output as show below

10% |**** | 3:56 ETA

I tried with following code

import subprocess import sys proc = subprocess.Popen("command", shell=True, stdout=subprocess.PIPE) while True: line = proc.stdout.readline() if not line: break split = line.rstrip() print line print "\n" print "Done"

This code reads output after completion of progress bar to 100%, but I want to read it at intermediate. Can any one help?

No its scalpel, file recovery tool

gau1991
– gau1991

2012-06-24 17:33:07 +00:00
Commented Jun 24, 2012 at 17:33 — gau1991
– gau1991, Commented Jun 24, 2012 at 17:33

kindall · Accepted Answer · 2012-06-24 16:53:30Z

4

You're using readline() but the progress bar is all printed on one line, so readline() waits until the progress bar has been fully printed, as that is when a line break occurs. Try read(1) to get a character at a time.

answered Jun 24, 2012 at 16:53

kindall

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1 Comment

gau1991 Over a year ago

Hello thanks it working, but if I want to omit starting version lines that is printed by subprocess, how will I do that?

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