Piping external commands

[saibotorama@gmail.com]

What is the Python translation for this Bash statement:

tar cf - "${files[@]}" | bzip2 "$file".tar .bz2

(Ignoring the fact that "tar cjf" also exists...)

In other words, how does one pipe together arbitrary commands?

[Simon Forman]

Re: Piping external commands

saibotorama@gma il.com wrote:

What is the Python translation for this Bash statement:
>
tar cf - "${files[@]}" | bzip2 "$file".tar .bz2
>
(Ignoring the fact that "tar cjf" also exists...)
>
In other words, how does one pipe together arbitrary commands?

For piping subcommands check out the subprocess module, especially
http://docs.python.org/lib/node242.html , for bzip2 check out the bz2
module http://docs.python.org/lib/module-bz2.html , but note, there's
also a tarfile module http://docs.python.org/lib/module-tarfile.html
which can handle bzip2 as well.

HTH,
~Simon