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    <p>sys.stdout is the python's idea of the parent's output stream.</p> <p>In any case you want to change the child's output stream.</p> <p>subprocess.call and subprocess.Popen take named parameters for the output streams.</p> <p>So open the file you want to output to and then pass that as the appropriate argument to subprocess.</p> <pre><code>f = open("outputFile","wb") subprocess.call(argsArray,stdout=f) </code></pre> <p>Your talk of using <code>&gt;&gt;</code> suggest you are using shell=True, or think you are passing your arguments to the shell. In any case it is better to use the array form of subprocess, which avoid an unnecessary process, and any weirdness from the shell.</p> <p>EDIT:</p> <p>So I downloaded RTMPDump and tried it out, it would appear the messages are appearing on stderr.</p> <p>So with the following program, nothing appears on the programs output, and the rtmpdump logs when into the stderr.txt file:</p> <pre><code>#!/usr/bin/env python import os import subprocess RTMPDUMP="./rtmpdump" assert os.path.isfile(RTMPDUMP) command = [RTMPDUMP,'-r','rtmp://oxy.videolectures.net/video/', '-y','2007/pascal/bootcamp07_vilanova/keller_mikaela/bootcamp07_keller_bss_01', '-a','video','-s', 'http://media.videolectures.net/jw-player/player.swf', '-w','ffa4f0c469cfbe1f449ec42462e8c3ba16600f5a4b311980bb626893ca81f388' ,'-x','53910','-o','test.flv'] stdout = open("stdout.txt","wb") stderr = open("stderr.txt","wb") subprocess.call(command,stdout=stdout,stderr=stderr) </code></pre>
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    1. POPython: How do I redirect this output?
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    1. USDouglas Leeder
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    1. POPython: How do I redirect this output?
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    1. COYou beat me to it. Essentially my answer is the same.
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    2. CO@Doubles Leeder: Output is still the Eclipse console with this. :/
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    3. CO@dmc could you run `rtmpdump` from the command line, redirecting stdout to one file, and stderr to a different file, to see if the output does get redirected?
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      1. USDouglas Leeder
 

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