newbie question: nested archives and zipfile

[gilbeert at gmail.com]

I sorry, but I'm not very familiar with Python.
Please, help to solve my problem with reading file from "nested" zip
archive.
There is an ear_file.ear and inside this file there is a war_file.war
and inside this file there is a jar_file.jar.
I have to read content of a file (my_file.txt) from inside a
jar_file.jar:
ear_file.ear > war_file.war > jar_file.jar > my_file.txt

Is it possible to directly read my_file.txt from inside this kind of
nested archive?
Please, give an example how to do that.

Do I have to open ear_file.ear, read war_file.war, write it to file
and then open writed war_file.war, read jar_file.jar, write it to
file
and then open wreted jar_file.jar and read my_file.txt??

Thanks in advance!