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@@ -49,13 +49,14 @@ This article explains the new features in Python 3.11, compared to 3.10.
For full details, see the :ref:`changelog <changelog>`.
Summary -- Release highlights
=============================
.. This section singles out the most important changes in Python 3.11.
Brevity is key.
- Python 3.11 is up to 10-60% faster than Python 3.10. On average, we measured a
- Python 3.11 is between 10-60% faster than Python 3.10. On average, we measured a
1.25x speedup on the standard benchmark suite. See `Faster CPython`_ for details.
.. PEP-sized items next.
Expand All
@@ -65,18 +66,35 @@ New syntax features:
* :pep:`654`: Exception Groups and ``except*``.
(Contributed by Irit Katriel in :issue:`45292`.)
New built-in features:
* :pep:`678`: Enriching Exceptions with Notes.
New standard library modules:
* :pep:`680`: ``tomllib`` — Support for Parsing TOML in the Standard Library.
Interpreter improvements:
* :pep:`657`: Include Fine Grained Error Locations in Tracebacks.
* New :option:`-P` command line option and :envvar:`PYTHONSAFEPATH` environment
variable to disable automatically prepending a potentially unsafe path
(the working dir or script directory, depending on invocation)
to :data:`sys.path`.
New typing features:
* :pep:`646`: Variadic generics.
* :pep:`655`: Marking individual TypedDict items as required or potentially missing.
* :pep:`673`: ``Self`` type.
* :pep:`675`: Arbitrary literal string type.
* :pep:`681`: Data Class Transforms.
Security improvements:
Important deprecations, removals or restrictions:
* New :option:`-P` command line option and :envvar:`PYTHONSAFEPATH` environment
variable to not prepend a potentially unsafe path to :data:`sys.path` such as
the current directory, the script's directory or an empty string.
* :pep:`594`: Removing dead batteries from the standard library.
* :pep:`624`: Remove ``Py_UNICODE`` encoder APIs.
* :pep:`670`: Convert macros to functions in the Python C API.
New Features
Expand Down
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gh-95914: Add missing PEPs to the Summary section of 3.11 What's New #95916
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gh-95914: Add missing PEPs to the Summary section of 3.11 What's New #95916
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