Is there a way to make a package depend on python without any versioning?

As far as I can tell our python packages do not install bin/python.

I do know we have ALTERNATIVES -- can we depend on that?

I am hoping to do this for the lyx packages. The binary and many scripts 
have hard-coded "python" usage. I have been told by lyx developers that 
several versions of python should work fine.

As it is now, lyx from lyx-qt packages has several errors due to missing 
"python" but it still works but is incomplete.

Jeremy C. Reed