Again, I'm not reading anything you say.
Modern gun factories today are assembly lines of automated CNC machines fabricating parts a hundred times faster than any human could. 99% of the effort in producing a gun in a modern facility is performed entirely by automation. Humans are still needed to do hand polishing, tolerance testing when parts come off the CNC, assembly, and final adjustments during assembly. However no modern company builds a gun from start to finish by hand on manual milling machines the same way the original Pythons were made. All modern gun producers use an assembly line operation with CNC produced parts because it is more efficient and the quality is better. If the Python were produced today, it would be made with CNC machines, not by hand.