What’s new in Python 3.15

Editor:

TBD

This article explains the new features in Python 3.15, compared to 3.14.

For full details, see the changelog.

Note

Prerelease users should be aware that this document is currently in draft form. It will be updated substantially as Python 3.15 moves towards release, so it’s worth checking back even after reading earlier versions.

Summary — release highlights

New features

Other language changes

New modules

• None yet.

Improved modules

module_name

• TODO

Optimizations

module_name

• TODO

Deprecated

• module_name: TODO

Removed

module_name

• TODO

Porting to Python 3.15

This section lists previously described changes and other bugfixes that may require changes to your code.

Build changes

C API changes

New features

• TODO

Porting to Python 3.15

• sqlite3.Connection APIs has been cleaned up.

  • All parameters of sqlite3.connect() except database are now keyword-only.

  • The first three parameters of methods create_function() and create_aggregate() are now positional-only.

  • The first parameter of methods set_authorizer(), set_progress_handler() and set_trace_callback() is now positional-only.

  (Contributed by Serhiy Storchaka in gh-133595.)

Deprecated C APIs

• TODO

Removed C APIs

• PyImport_ImportModuleNoBlock(): deprecated alias of PyImport_ImportModule().