RomanNum3ral
/
scrapy
mirror of https://github.com/scrapy/scrapy.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

minor changes to items section of docs (#6462)

This commit is contained in:
mlmsmith 2024-08-19 19:55:09 +08:00 committed by GitHub
parent b9ef1326a5
commit af15bd1dad
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
docs/topics/items.rst
View File

@ -48,7 +48,7 @@ make it the most feature-complete item type:
:class:`Item` objects replicate the standard :class:`dict` API, including
its ``__init__`` method.
:class:`Item` allows defining field names, so that:
:class:`Item` allows the defining of field names, so that:
- :class:`KeyError` is raised when using undefined field names (i.e.
prevents typos going unnoticed)
@ -57,7 +57,7 @@ make it the most feature-complete item type:
default even if the first scraped object does not have values for all
of them
:class:`Item` also allows defining field metadata, which can be used to
:class:`Item` also allows the defining of field metadata, which can be used to
:ref:`customize serialization <topics-exporters-field-serialization>`.
:mod:`trackref` tracks :class:`Item` objects to help find memory leaks
@ -94,11 +94,11 @@ Dataclass objects
.. versionadded:: 2.2
:func:`~dataclasses.dataclass` allows defining item classes with field names,
:func:`~dataclasses.dataclass` allows the defining of item classes with field names,
so that :ref:`item exporters <topics-exporters>` can export all fields by
default even if the first scraped object does not have values for all of them.
Additionally, ``dataclass`` items also allow to:
Additionally, ``dataclass`` items also allow you to:
* define the type and default value of each defined field.
@ -126,7 +126,7 @@ attr.s objects
.. versionadded:: 2.2
:func:`attr.s` allows defining item classes with field names,
:func:`attr.s` allows the defining of item classes with field names,
so that :ref:`item exporters <topics-exporters>` can export all fields by
default even if the first scraped object does not have values for all of them.