Upstreaming the Python module

[masters3d]

@pvieito

• Should the Python interop module be part of the official Swift projects? Yes! We could create a new official Swift repo with the Python interop module ( apple/swift-python , akin to apple/swift-log ?).
• Should the Python interop be distributed with the toolchain? I am very ambivalent to this. Swift already has built-in support for C and Objective-C interop, so built-in Python interop support would not be alien to the language. On the other hand, the Python interop module does not require any extra compiler support and can easily be distributed as separated Swift PM package, which can benefit of evolving and being developed more quickly.

Yes to up streaming. Could it be its own repo? Or could we have a swift repo called OtherLangSupport with support for python and others via local packages vended as one?

I'm thinking keeping it a package is the best route. If included in the tool-chain, how does one switch python versions?