Deprecate PEP-456 [1] support for providing an external definition
of the string hashing scheme. Removal is scheduled for Python 3.19.
Previously, embedders could define the ``Py_HASH_ALGORITHM`` macro to be
``Py_HASH_EXTERNAL`` [2] to indicate that the hashing scheme was provided
externally but this feature was undocumented, untested and most likely
unused.
[1]: https://peps.python.org/pep-0456/
[2]: https://peps.python.org/pep-0456/#hash-function-selection
The documentation incorrectly stated that numeric group arguments
must be in the range [1..99]. This limit was removed in Python 3.5
(bpo-22437). Replace with "a positive integer" since the next
sentence already documents the IndexError for out-of-range values.
* Docs: a start on an 'improve this page' feature
* pr feedback: simplify the link, and don't scare people with the cla
* pr feedback answered
- use the actual page URL
- tighten the wording
* fix the improve link on the improve page
* news item
* Update Doc/improve-page.rst
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
* fix whitespace
* A nojs version of the page
* comments to help people keep the two pages in sync
* protect against XSS
* use template for issues from the nojs page
* use the template from the JS page as well
* give the docs issue template a fillable description field
* ugh, getting sloppy
* remove more sloppiness
---------
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Add TYPE_FROZENDICT to the marshal module.
Add C API functions:
* PyAnyDict_Check()
* PyAnyDict_CheckExact()
* PyFrozenDict_Check()
* PyFrozenDict_CheckExact()
* PyFrozenDict_New()
Add PyFrozenDict_Type C type.
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Adam Johnson <me@adamj.eu>
Co-authored-by: Benedikt Johannes <benedikt.johannes.hofer@gmail.com>
* %D support for strptime, including test and Doc update
* additional %D test
* change documentation example date for %D so it is more legible to non-US readers
* change testing date for %D so it is more legible to non-US readers
* mv News blurb to Library, consistent with previous %F change
* change invalid format code from %D to C-standard unused %!
* Fix erroneous and misleading example Doc to %y from %Y, use correct C99+ definition for C99 %D; update additional tests
---------
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Adds `prefixmatch` APIs to the re module as an alternate name for our long existing `match` APIs to help alleviate a common Python confusion for those coming from other languages regular expression libraries.
These alleviate common confusion around what "match" means as Python is different than other popular languages regex libraries in our use of the term as an API name. The original `match` names are **NOT being deprecated**. Source tooling like linters, IDEs, and LLMs could suggest using `prefixmatch` instead of match to improve code health and reduce cognitive burden of understanding the intent of code when configured for a modern minimum Python version.
See the documentation changes for a better description.
Discussions took place in the PR, in the issue, and finally at https://discuss.python.org/t/add-re-prefixmatch-deprecate-re-match/105927
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
To avoid duplicate content in the Enum HOWTO and
API documentation which is not automatically synced,
the section about supported __dunder__ and _sunder
names is moved from HOWTO to API docs.
See also https://github.com/python/cpython/pull/136791
Python.h now also includes <string.h> in the limited C API version 3.11
and newer to fix the Py_CLEAR() macro which uses memcpy().
Add a Py_CLEAR() test in test_cext.
Modify also _Py_TYPEOF to use C23 typeof() if available.
Add an example showing how to use str.translate() with a dictionary
mapping directly, demonstrating character replacement and deletion.
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
When integrating slots-based module creation is with the inittab,
which currently requires PyModuleDef, it would be convenient to
reuse the the same slots array for the MethodDef.
Allow slots that match what's already present in the PyModuleDef.
