[Fedora-packaging] Which files to be copied

[Blaxton]

Hi
I am creating my first rpm binary, and it is Python3. 
I can create the rpm binary, but want to know how to identify the files that needs to be
included in %files ?
For now I chose everything in RPM_BUILD_ROOT/bin/* /lib/* and /share/*, but I can see on
other specfiles they only copy .py files or .so files or even they create a symlink.

Thanks