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Merge pull request #3960 from thernstig/issue_2149 

Update documentation for logging manually
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Andrey Rahmatullin 2019-11-12 16:17:49 +05:00 committed by GitHub
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docs/topics/logging.rst
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@ -255,18 +255,18 @@ scrapy.utils.log module
when running custom scripts using :class:`~scrapy.crawler.CrawlerRunner`.
In that case, its usage is not required but it's recommended.
If you plan on configuring the handlers yourself is still recommended you
call this function, passing ``install_root_handler=False``. Bear in mind
there won't be any log output set by default in that case.
Another option when running custom scripts is to manually configure the logging.
To do this you can use `logging.basicConfig()`_ to set a basic root handler.
To get you started on manually configuring logging's output, you can use
`logging.basicConfig()`_ to set a basic root handler. This is an example
on how to redirect ``INFO`` or higher messages to a file::
Note that :class:`~scrapy.crawler.CrawlerProcess` automatically calls ``configure_logging``,
so it is recommended to only use `logging.basicConfig()`_ together with
:class:`~scrapy.crawler.CrawlerRunner`.
This is an example on how to redirect ``INFO`` or higher messages to a file::
import logging
from scrapy.utils.log import configure_logging
configure_logging(install_root_handler=False)
logging.basicConfig(
filename='log.txt',
format='%(levelname)s: %(message)s',