How do I directly specify a zip file member as a command or command-line option?

[R. Bernstein]

In GNU Emacs there is Zip-Archive mode and from a directory list I can
run (archive-extract) to view a member of the zip file. But I'd like
to run an emacs commnad to open the member directly without going
through the directory listing. (archive-zip-extract) seems to be
close, but that seems require setup on the outside with buffers.

The particular application I have in mind is a Python debugger where
sometimes the positions will be a file and line number inside a zip
file, specifically a Python egg.

Related to the above is the ability on the *command-line* to go to a
specific location inside a zip file. Emacs follows a convention for
editing a file and line number: FILE:LINENUM, but is there a
convention or way to specify a position inside some sort of archive?
If so, I'd make sure to arrange the debugger to output backtraces and
in that format.

Thanks.