[Tutor] system()? popen2()? How to execute a command & save its output?

[James Hartley]

I'm needing to transfer the following shell construct to Python, plus save
the output of execution:

FTP_SITE='ftp.somesite.com'
ftp -a  $FTP_SITE <<EOF
binary
prompt off
cd /some_dir
dir
bye
EOF

Here, the FTP client accepts commands from STDIN, so all commands are saved
in a temporary file which is redirected to the client application.

I also need to save whatever output is generated.  How can this be done in
Python?

Thanks.

Jim
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