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Python 3.10.0a6

Release Date: March 1, 2021

This is an early developer preview of Python 3.10

Major new features of the 3.10 series, compared to 3.9

Python 3.10 is still in development. This release, 3.10.0a6 is the sixth of seven planned alpha releases. Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process. During the alpha phase, features may be added up until the start of the beta phase (2021-05-03) and, if necessary, may be modified or deleted up until the release candidate phase (2021-10-04). Please keep in mind that this is a preview release and its use is not recommended for production environments.

Many new features for Python 3.10 are still being planned and written. Among the new major new features and changes so far:

  • PEP 623 -- Remove wstr from Unicode
  • PEP 604 -- Allow writing union types as X | Y
  • PEP 612 -- Parameter Specification Variables
  • PEP 626 -- Precise line numbers for debugging and other tools.
  • bpo-38605: from __future__ import annotations (PEP 563) is now the default.
  • PEP 618 -- Add Optional Length-Checking To zip.
  • bpo-12782: Parenthesized context managers are now officially allowed.
  • PEP 632 -- Deprecate distutils module.
  • PEP 613 -- Explicit Type Aliases
  • PEP 634 -- Structural Pattern Matching: Specification
  • PEP 635 -- Structural Pattern Matching: Motivation and Rationale
  • PEP 636 -- Structural Pattern Matching: Tutorial

  • (Hey, fellow core developer, if a feature you find important is missing from this list, let Pablo know.)

The next pre-release of Python 3.10 will be 3.10.0a7 ( last alpha release), currently scheduled for Monday, 2021-04-05.

More resources

And now for something completely different

Schwarzschild wormholes, also known as Einstein–Rosen bridges (named after Albert Einstein and Nathan Rosen), are connections between areas of space that can be modelled as vacuum solutions to the Einstein field equations, and that are now understood to be intrinsic parts of the maximally extended version of the Schwarzschild metric describing an eternal black hole with no charge and no rotation. Here, "maximally extended" refers to the idea that the spacetime should not have any "edges": it should be possible to continue this path arbitrarily far into the particle's future or past for any possible trajectory of a free-falling particle (following a geodesic in the spacetime).

Although Schwarzschild wormholes are not traversable in both directions, their existence inspired Kip Thorne to imagine traversable wormholes created by holding the "throat" of a Schwarzschild wormhole open with exotic matter (material that has negative mass/energy).

Files

Version Operating System Description MD5 Sum File Size GPG
Gzipped source tarball Source release f801471a0bcbf24f0bcace82be969c57 24555687 SIG
XZ compressed source tarball Source release 948f385cba3438aaac31c5e4ae4c4657 18354336 SIG
macOS 64-bit universal2 installer Mac OS X for macOS 10.9 and later, including macOS 11 Big Sur on Apple Silicon (experimental) e82bc94a2a448f7386d42d92f24ef7d7 37983189 SIG
Windows embeddable package (32-bit) Windows d65c0832d88e38aa590f8e5c4f576ca1 7360188 SIG
Windows embeddable package (64-bit) Windows 97ce8b758d05db6c3c60301cf6340e00 8310173 SIG
Windows help file Windows cba597b43015a00a8411a1d03d4aedb6 8961902 SIG
Windows installer (32-bit) Windows a24cb95dcd8f4a62ddf949997e8ea068 26337280 SIG
Windows installer (64-bit) Windows Recommended 406fec44f6c47bd91885478d7b498a70 27467696 SIG