python - redirecting output of pexpect to a file -


i tried capture output of pexpect in file.

python 2.6.5 (r265:79063, apr 16 2010, 13:09:56) [gcc 4.4.3] on linux2 type "help", "copyright", "credits" or "license" more information. >>> import pexpect >>> child = pexpect.spawn('iostat 3') >>> fout = file('mylogfile.txt','w') >>> child.logfile = fout   
tazim@webdev:~/webexample$ ps -ef | grep iostat tazim     4683  4675  0 12:49 pts/3    00:00:00 /usr/bin/iostat 3 tazim     4685  4560  0 12:51 pts/2    00:00:00 grep --color=auto iostat

however mylogfile.txt not receives output. file created empty.

you have forgotten expect child :) add this, instance:

child.expect(pexpect.eof)

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