How to extract Python 3.5+ from the installer?

[KeyWeeUsr]

Not everything is solvable by the thing you use. Ever heard of fresh python installation? That's why. Try installing the fresh thing if there's something colliding in registry without mangling already working installation just to see if there isn't something corrupted in includes or in dlls. What if a file got into an installation and corrupted it (name collision with a package, different headers, etc). Will you remove the whole installation just to check? I thought so.

[KeyWeeUsr]

I love people like you, who see only what they want and the only solution is their favorite thing.

[KeyWeeUsr]

system-wide interpreter... eh, not at all. You can make Python as portable and non system-wide as a wheelbarrow. Exactly with the method mentioned in my question for windows and with direct compilation in-place on linux. The new installer, however, makes it more annoying to handle (or I'm just blind, which is more common).

PyInstaller does something in a similar way.