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Docs improvements.

This commit is contained in:
Andrey Rakhmatullin 2023-09-13 15:47:41 +04:00
parent 3756216339
commit 61ef37a594
2 changed files with 9 additions and 6 deletions
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6
docs/topics/settings.rst
View File

@ -115,8 +115,10 @@ arguments <spiderargs>` or other logic:
@classmethod
def from_crawler(cls, crawler, *args, **kwargs):
spider = super().from_crawler(crawler, *args, **kwargs)
if "value" in kwargs:
spider.settings.set("SOME_SETTING", kwargs["value"], priority="spider")
if "some_argument" in kwargs:
spider.settings.set(
"SOME_SETTING", kwargs["some_argument"], priority="spider"
)
return spider
3. Project settings module

9
docs/topics/spiders.rst
View File

@ -138,10 +138,11 @@ scrapy.Spider
.. versionchanged:: VERSION
The settings in ``crawler.settings`` can now be modified, which is
handy if you want to modify them based on arguments. As a
consequence, these settings aren't the final values as they can be
modified later by e.g. :ref:`add-ons <topics-addons>`.
The settings in ``crawler.settings`` can now be modified in this
method, which is handy if you want to modify them based on
arguments. As a consequence, these settings aren't the final values
as they can be modified later by e.g. :ref:`add-ons
<topics-addons>`. The settings become final when the spider starts.
:param crawler: crawler to which the spider will be bound
:type crawler: :class:`~scrapy.crawler.Crawler` instance