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Python 3.10.1

Release Date: Dec. 6, 2021

Python 3.10 release logo

This is the first maintenance release of Python 3.10

Python 3.10.1 is the newest major release of the Python programming language, and it contains many new features and optimizations.

Major new features of the 3.10 series, compared to 3.9

Among the new major new features and changes so far:

  • PEP 623 -- Deprecate and prepare for the removal of the wstr member in PyUnicodeObject.
  • PEP 604 -- Allow writing union types as X | Y
  • PEP 612 -- Parameter Specification Variables
  • PEP 626 -- Precise line numbers for debugging and other tools.
  • 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
  • PEP 644 -- Require OpenSSL 1.1.1 or newer
  • PEP 624 -- Remove Py_UNICODE encoder APIs
  • PEP 597 -- Add optional EncodingWarning

bpo-38605: from __future__ import annotations (PEP 563) used to be on this list in previous pre-releases but it has been postponed to Python 3.11 due to some compatibility concerns. You can read the Steering Council communication about it here to learn more.

More resources

And now for something completely different

The Meissner effect (or Meissner–Ochsenfeld effect) is the expulsion of a magnetic field from a superconductor during its transition to the superconducting state when it is cooled below the critical temperature. This expulsion will repel a nearby magnet. The German physicists Walther Meissner and Robert Ochsenfeld discovered this phenomenon in 1933 by measuring the magnetic field distribution outside superconducting tin and lead samples. The experiment demonstrated for the first time that superconductors were more than just perfect conductors and provided a uniquely defining property of the superconductor state. The ability for the expulsion effect is determined by the nature of equilibrium formed by the neutralization within the unit cell of a superconductor.

You can do very cool things with it!

Full Changelog


Version Operating System Description MD5 Sum File Size GPG Sigstore
Gzipped source tarball Source release 91822157a97da16203877400c810d93e 23.9 MB SIG .sigstore
XZ compressed source tarball Source release 789210934745a65247a3ebf5da9adb64 17.9 MB SIG .sigstore
macOS 64-bit universal2 installer macOS for macOS 10.9 and later d106e0f83028e9245397867148dc2323 37.9 MB SIG .sigstore
Windows installer (64-bit) Windows Recommended 0e1c3a6ee3a05b5c4cd3d43fce8311a1 26.9 MB SIG .sigstore
Windows help file Windows 993f5820d23ba72f9aee2e501f54980a 9.1 MB SIG .sigstore
Windows embeddable package (64-bit) Windows 864dcff204ba8b257809cc3f20beb1b9 8.1 MB SIG .sigstore
Windows embeddable package (32-bit) Windows 4f4d7a8f2118f62e17a4ebdf5fe0aee5 7.2 MB SIG .sigstore
Windows embeddable package (ARM64) Windows e0d6077e6a4d43b97d46375e8c17c6d1 7.3 MB SIG .sigstore
Windows installer (32 -bit) Windows 0b8c2ba677af4f47e534c7eee1c3cb03 25.8 MB SIG .sigstore