The newly approved Python Enhancement Proposal 751 gives Python a standard lock file format for specifying the dependencies of projects. Here’s the what, why, and when.

To invoke a specific edition of Python, type py followed by the switch in the left-hand column for the appropriate version. For instance, to launch the 64-bit edition of Python 3.9, you would type ...

Python maintainers have released 3.9.1 Python, which is the first version to support macOS 11 Big Sur. As they note, Xcode 11 makes it possible to build Universal 2 binaries that work on Apple ...