Now, there was a period in the 1980s when Colt's labor force went on strike and the managers tried to build the guns. It was a mess. And those guns are still out there.
You need to get into the 21st century. Your way of thinking is why businesses fail. The Python is a machine and all machines can be mass produced if there is a market to support that. It is ridiculous to suggest that all of the internal parts have to be hand-made for a specific gun.