Python 3.13.1 Release Notes November 2025 ((hot)) -

| Module | Hypothetical Update | Rationale | |--------|--------------------|-----------| | | Fix for race condition in TaskGroup when tasks cancel each other. | Early reports from production async frameworks. | | statistics | New mode overload that returns a list when multiple modes exist (PEP ...?) | Aligns with expectations from numpy / pandas . | | zoneinfo | Bundled IANA time‑zone database refreshed to 2025a. | Keeps the module up‑to‑date without external downloads. | | http.client | Added support for HTTP/3 (QUIC) via optional dependency on aioquic . | Reflects the growing adoption of HTTP/3. | | pathlib | Path.read_text() now accepts errors="replace" on Windows without raising a warning. | Improves cross‑platform ergonomics. |

Stay tuned to the Python‑Dev mailing list, the official blog, and the “What’s New” docs for the real, authoritative release notes once Python 3.13.1 goes live in November 2025. python 3.13.1 release notes november 2025

Change Permissions

File(s):

Mode	User	Group	World
Read
Write
Execute
Permission

Edit

Back up the original file before converting character sets, since this action can produce unexpected results.

You will be editing:

If encodings are not important to you because you will only be working with English or other Western languages, you can disable this dialog by clicking here:

Please select the character encoding to use when opening this file:

Toggle Help …

Compress

Compression Type:

Files to compress:

Enter the name of the compressed archive and click Compress:

Copy

Delete

Empty Trash

            
                Are you sure you want to empty the Trash?
                
                Non-Reversible Action: This will remove ALL files within the trash directory!

Character Encoding Verification Disabled

        
            We will attempt to automatically detect character encodings and will no longer verify them with you. If you need to change this setting in the future, use the “Settings” link or the “Reset Page Settings” option on the main screen.

Extract

HTML Editor

Stay tuned to the Python‑Dev mailing list, the official blog, and the “What’s New” docs for the real, authoritative release notes once Python 3.13.1 goes live in November 2025.

Move

New File

New Folder

Preferences

Always open this directory in the future by default:

Home Directory

Web Root (public_html or www)

Public FTP Root (public_ftp)

Document Root for:

Show Hidden Files (dotfiles)

Disable Character Encoding Verification Dialogs

Rename

Restore

            
                Are you sure you wish to restore the following files to their original locations?

Search Results for:

Double click on a file or folder to open the folder (or the folder it is contained in if it is a file).

        Path

Note: Limited to 250 Results.

Trash