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[MRG+1] Improvements for docs on how to access settings #1302

merged 1 commit into from Jul 3, 2015


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@eliasdorneles eliasdorneles commented Jun 14, 2015

Hey folks,

Here are some improvements to the settings docs, attempts to address the issues from #1300 .

Summary of the changes:

  • added example of accessing settings from a spider
  • adapted example of extension accessing settings to a more realistic-like scenario
  • rewrote some explanations to make easier to understand in the simpler cases
  • added watch in the help for docs Makefile

Does this look good?

class MyExtension(object):
def __init__(self, log_is_enabled=False):
if log_is_enabled:
print "log is enabled!"

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kmike Jun 15, 2015

let's use Python 2+3 compatible example:

print("log is enabled!")
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@kmike kmike commented Jun 15, 2015


@eliasdorneles eliasdorneles force-pushed the eliasdorneles:improving-access-settings-docs branch from ab6867e to 2de5c66 Jun 15, 2015
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@eliasdorneles eliasdorneles commented Jun 15, 2015

@kmike updated and rebased

@kmike kmike changed the title Improvements for docs on how to access settings [MRG+1] Improvements for docs on how to access settings Jun 15, 2015

def from_crawler(cls, crawler):
settings = crawler.settings
if settings['LOG_ENABLED']:
print "log is enabled!"
return cls(settings.getbool('LOG_ENABLED'))

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nramirezuy Jun 15, 2015

Why don't we use a useful example here?, disabling MyExtension.

if not settings.getbool('MYEXT_ENABLED'):
    raise NotConfigured

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eliasdorneles Jun 15, 2015
Author Member

Hmm, that example is more useful, but I don't know... I'm afraid this would attract too much attention to the subject of writing an extension.
I kinda prefer the "lame print", a bit more straightforward to follow.

curita added a commit that referenced this pull request Jul 3, 2015

[MRG+1] Improvements for docs on how to access settings
@curita curita merged commit 8b3ca4f into scrapy:master Jul 3, 2015
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