{"id":49796,"date":"2025-10-08T16:09:29","date_gmt":"2025-10-08T16:09:29","guid":{"rendered":"https:\/\/ubuntuhandbook.org\/?p=49796"},"modified":"2025-10-09T11:07:35","modified_gmt":"2025-10-09T11:07:35","slug":"python-3-14-free-threading-zstandard","status":"publish","type":"post","link":"https:\/\/ubuntuhandbook.org\/index.php\/2025\/10\/python-3-14-free-threading-zstandard\/","title":{"rendered":"Python 3.14 Released with Free-threading & Template string literals"},"content":{"rendered":"

\"\"<\/a><\/p>\n

Python announced the new 3.14 version yesterday! See what’s new and how to install guide for Ubuntu users.<\/p>\n

Python 3.14 is the latest stable release of the Python programming language, with 5 years support until 2030.<\/p>\n

Since the release, the free-threaded build of Python<\/strong> is officially supported and no longer experimental. It’s so far optional, though will be make default in next phase.<\/p>\n

<\/p>\n

In Python 3.14, the evaluation of annotations is now deferred<\/strong>. It introduced the new annotationlib<\/code> module, providing tools for inspecting deferred annotations. And, annotations may be evaluated in the VALUE format, the FORWARDREF format, and the STRING format. See PEP 649<\/a> for more.<\/p>\n

\"\"<\/a><\/p>\n

It added Template string literals<\/strong> (PEP 750<\/a>), new mechanism for custom string processing. The new t-strings<\/code> use the familiar syntax of f-strings, but return an object representing the static and interpolated parts of the string.<\/p>\n

\"\"<\/a><\/p>\n

Python 3.14 finally added multiple interpreters in the standard library (PEP 734<\/a>). With the new concurrent.interpreters<\/code> module, it now supports running multiple copies of Python in the same process simultaneously without C-API.<\/p>\n

It as well introduced new compression<\/code> package contains compression.lzma<\/code>, compression.bz2<\/code>, compression.gzip<\/code>, compression.zlib<\/code>, as well as compression.zstd<\/code> modules.<\/p>\n

Besides compression and decompression for the Zstandard format (PEP 784<\/a>), the support for reading and writing Zstandard compressed archives has been added to the tarfile<\/code>, zipfile<\/code>, and shutil<\/code> modules.<\/p>\n

\"\"<\/a><\/p>\n

The release also introduced a zero-overhead debugging interface for CPython, that allows debuggers and profilers to safely attach to running Python processes without stopping or restarting them.<\/p>\n

A new command-line interface is added to inspect running Python processes using asynchronous tasks, available via python -m asyncio ps PID<\/code> or python -m asyncio pstree PID<\/code>.<\/p>\n

And the pdb<\/code> module now supports remote attaching to a running Python process using a new -p PID<\/code> command-line option. For example, run python -m pdb -p 1234<\/code> will connect to the Python process with the given PID and allow you to debug it interactively.<\/p>\n

Other changes include:<\/p>\n