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Python 3.10.3

Release Date: March 16, 2022

Python 3.10 release logo

This is the third maintenance release of Python 3.10

Python 3.10.3 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 omega baryons are a family of subatomic hadron (a baryon) particles that are represented by the symbol Ω and are either neutral or have a +2, +1 or −1 elementary charge. They are baryons containing no up or down quarks. Omega baryons containing top quarks are not expected to be observed. This is because the Standard Model predicts the mean lifetime of top quarks to be roughly 5*10^−25 seconds which is about a twentieth of the timescale for strong interactions, and therefore that they do not form hadrons.

Full Changelog


Version Operating System Description MD5 Sum File Size GPG
Gzipped source tarball Source release f276ffcd05bccafe46da023d0a5bb04a 24.4 MB SIG
XZ compressed source tarball Source release 21e0b70d70fdd4756aafc4caa55cc17e 18.4 MB SIG
macOS 64-bit universal2 installer macOS for macOS 10.9 and later d05c3699c5a9d292042320f327a50b8d 38.5 MB SIG
Windows installer (64-bit) Windows Recommended 9ea305690dbfd424a632b6a659347c1e 27.1 MB SIG
Windows installer (32-bit) Windows 6a336cb2aca62dd05805316ab3aaf2b5 26.0 MB SIG
Windows help file Windows d0689ad87c834c01fe99bcc98dbbd2ff 8.8 MB SIG
Windows embeddable package (64-bit) Windows 413bcc68b01054ae6af39b6ab97f4fb4 8.1 MB SIG
Windows embeddable package (32-bit) Windows 15ab9ad0dcd9e647e0dd94bb987930a1 7.2 MB SIG