8000 gh-102856: Add changes related to PEP 701 in 3.12 What's New docs by mgmacias95 · Pull Request #104824 · python/cpython · GitHub
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gh-102856: Add changes related to PEP 701 in 3.12 What's New docs #104824

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Merged
merged 7 commits into from
May 24, 2023
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gh-102856: Add changes related to PEP 701 in 3.12 What's New docs #104824

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4c18db7
Add changes related to PEP 701 in 3.12 What's New docs
mgmacias95 May 23, 2023
1182d56
Fix compilation issue and improve text
mgmacias95 May 23, 2023
2c3ab81
Update Doc/whatsnew/3.12.rst
pablogsal May 23, 2023
93a9286
Apply suggestions from code review
pablogsal May 24, 2023
08036e5
Make some minor aditions to the tokenize changes
pablogsal May 24, 2023
0ab25a6
Fix indent
pablogsal May 24, 2023
e729d66
Add pep701 to the index
pablogsal May 24, 2023
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Make some minor aditions to the tokenize changes
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@pablogsal
pablogsal committed May 24, 2023
commit 08036e526081fa8fcd9ee537b61a75a82986b6a9
18 changes: 14 additions & 4 deletions Doc/whatsnew/3.12.rst
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Expand Up @@ -614,6 +614,8 @@ tokenize

* The :mod:`tokenize` module includes the changes introduced in :pep:`701`. (
Contributed by Marta Gómez Macías and Pablo Galindo in :gh:`102856`.)
See :ref:`whatsnew312-porting-to-python312` for more information on the
changes to the :mod:`tokenize` module.

types
-----
Expand Down Expand Up @@ -1207,6 +1209,8 @@ Removed
Iceape, Firebird, and Firefox versions 35 and below (:gh:`102871`).


.. _whatsnew312-porting-to-python312:

Porting to Python 3.12
======================

Expand Down Expand Up @@ -1301,10 +1305,16 @@ Changes in the Python API
1,13-1,17: FSTRING_MIDDLE ' end'
1,17-1,18: FSTRING_END '"'

Aditionally, final ``DEDENT`` tokens are now emitted within the bounds of the
input. This means that for a file containing 3 lines, the old version of the
tokenizer returned a ``DEDENT`` token in line 4 whilst the new version returns
the token in line 3.
Aditionally, there may be some minor behavioral changes as a consecuence of the
changes required to support :pep:`701`. Some of these changes include:

* Some final ``DEDENT`` tokens are now emitted within the bounds of the
input. This means that for a file containing 3 lines, the old version of the
tokenizer returned a ``DEDENT`` token in line 4 whilst the new version returns
the token in line 3.

* The ``type`` attribute of the tokens emitted when tokenizing some invalid Python
characters such as ``!`` has changed from ``ERRORTOKEN`` to ``OP``.

Build Changes
=============
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