(snippet

         '(begin (substitute* "setup.py"
                   (("scripts=\\['onlykey_agent.py'\\]")
                    "py_modules=['onlykey_agent']"))
                 #t))))

Typically these kind of changes go into a phase. Search other package declarations for "substitute" to see how this is done. source-snippets are primary for removing binaries and proprietary code.

Regarding the other issue, I can't give any advice, since I don't know the code :-)

-- 
Regards
Hartmut Goebel

| Hartmut Goebel          | h.goebel@crazy-compilers.com               |
| www.crazy-compilers.com | compilers which you thought are impossible |