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bpo-40360: [doc] Rephrase deprecation note about lib2to3 (GH-28122)

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Łukasz Langa 2021-09-02 17:12:49 +02:00 • committed by GitHub
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@ -464,12 +464,15 @@ and off individually. They are described here in more detail.
-------------- --------------
.. deprecated:: 3.10 .. deprecated-removed:: 3.11 3.13
Python 3.9 will switch to a PEG parser (see :pep:`617`), and Python 3.10 may Python 3.9 switched to a PEG parser (see :pep:`617`) while lib2to3 is
include new language syntax that is not parsable by lib2to3's LL(1) parser. using a less flexible LL(1) parser. Python 3.10 includes new language
The ``lib2to3`` module may be removed from the standard library in a future syntax that is not parsable by lib2to3's LL(1) parser (see :pep:`634`).
Python version. Consider third-party alternatives such as `LibCST`_ or The ``lib2to3`` module was marked pending for deprecation in Python 3.9
`parso`_. (raising :exc:`PendingDeprecationWarning` on import) and fully deprecated
in Python 3.11 (raising :exc:`DeprecationWarning`).
It will be removed from the standard library in Python 3.13.
Consider third-party alternatives such as `LibCST`_ or `parso`_.
.. note:: .. note::