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gh-109961: Docs: Fix incorrect rendering of `__replace__` in `copy.rst` by sobolevn · Pull Request #109968 · python/cpython · GitHub

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gh-109961: Docs: Fix incorrect rendering of __replace__ in copy.rst #109968

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hugovk merged 3 commits into from
Sep 28, 2023
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gh-109961: Docs: Fix incorrect rendering of __replace__ in copy.rst #109968

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gh-109961: Fix incorrect rendering of `__replace__` in `library/copy.…
sobolevn Sep 27, 2023
15de5b9
keep noindex
sobolevn Sep 27, 2023
e9ea514
Use `:noindexentry:`
sobolevn Sep 27, 2023
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33 changes: 21 additions & 12 deletions Doc/library/copy.rst
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Expand Up @@ -88,27 +88,36 @@ pickle functions from the :mod:`copyreg` module.
single: __deepcopy__() (copy protocol)

In order for a class to define its own copy implementation, it can define
special methods :meth:`__copy__` and :meth:`__deepcopy__`. The former is called
to implement the shallow copy operation; no additional arguments are passed.
The latter is called to implement the deep copy operation; it is passed one
argument, the ``memo`` dictionary. If the :meth:`__deepcopy__` implementation needs
to make a deep copy of a component, it should call the :func:`deepcopy` function
with the component as first argument and the memo dictionary as second argument.
The memo dictionary should be treated as an opaque object.
special methods :meth:`~object.__copy__` and :meth:`~object.__deepcopy__`.

.. method:: object.__copy__(self)

serhiy-storchaka Sep 27, 2023

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

But please keep :noindex:. There are already entries for __replace__ etc, and duplicates that refer to the same target are confusing.

sobolevn Sep 27, 2023

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

Hm, when adding noindex it starts to fail nitpick mode:

/Users/sobolev/Desktop/cpython/Doc/library/copy.rst:90: WARNING: py:meth reference target not found: object.__copy__
/Users/sobolev/Desktop/cpython/Doc/library/copy.rst:90: WARNING: py:meth reference target not found: object.__deepcopy__
/Users/sobolev/Desktop/cpython/Doc/library/copy.rst:112: WARNING: py:meth reference target not found: object.__replace__

sobolevn Sep 27, 2023 •
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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

With two indexes we have:

They link to:

  • copy.html#copy.object.__replace__
  • copy.html#index-2

Do we need the index directive itself now?

AA-Turner Sep 27, 2023

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

You could consider :noindexentry:?

A

sobolevn Sep 27, 2023

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

It generated just one link in index.html: copy.html#index-2
No warnings 👍

Thanks, TIL about noindexentry :)
:noindexentry:

Called to implement the shallow copy operation;
no additional arguments are passed.

.. method:: object.__deepcopy__(self, memo)
:noindexentry:

Called to implement the deep copy operation; it is passed one
argument, the *memo* dictionary. If the ``__deepcopy__`` implementation needs
to make a deep copy of a component, it should call the :func:`deepcopy` function
with the component as first argument and the *memo* dictionary as second argument.
The *memo* dictionary should be treated as an opaque object.


.. index::
single: __replace__() (replace protocol)

Function :func:`replace` is more limited than :func:`copy` and :func:`deepcopy`,
and only supports named tuples created by :func:`~collections.namedtuple`,
:mod:`dataclasses`, and other classes which define method :meth:`!__replace__`.
:mod:`dataclasses`, and other classes which define method :meth:`~object.__replace__`.

merwok Sep 27, 2023

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

This answers a question I had: with noindexentry, can we still link to the method.
I just hope it’s not indexed as copy.object instead of builtins.object!

serhiy-storchaka Sep 28, 2023

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

Of course, it is copy.object. https://cpython-previews--109968.org.readthedocs.build/en/109968/library/copy.html#copy.object.__replace__

You need to add .. currentmodule:: . to make it builtin.

.. method:: __replace__(self, /, **changes)
:noindex:
.. method:: object.__replace__(self, /, **changes)
:noindexentry:

:meth:`!__replace__` should create a new object of the same type,
replacing fields with values from *changes*.
This method should create a new object of the same type,
replacing fields with values from *changes*.


.. seealso::
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1 change: 0 additions & 1 deletion Doc/tools/.nitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,6 @@ Doc/library/collections.rst
Doc/library/concurrent.futures.rst
Doc/library/configparser.rst
Doc/library/contextlib.rst
Doc/library/copy.rst
Doc/library/csv.rst
Doc/library/datetime.rst
Doc/library/dbm.rst
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