The problem with Python boxes is that the market is flooded with reproductions. And end labels, manuals, hang tags, etc. Check the auction sites and see for yourself.
It's a favorite game on the Colt forum; spot the bogus for sale ad. If it says NIB, does it say new in original box or new in an original box. Or does it say in a Colt box. Some people even claim an old Python came in a blue plastic Colt box.
I'm not an expert, so I just assume they're all phony. Boxes were provided so the buyer would have a handy target to shoot at on the side of the road on the way home.