SCP17: Redundant setting value

What it does

Finds settings in a settings module (e.g. settings.py) that are set to their default value and are not changing settings.

Why is this bad?

Setting a setting to its default value is generally unnecessary, and can be misleading.

Do it only if:

• You are reverting a change made by an add-on.

• The default value changes in a future version of Scrapy, you will need to keep the current default, and you do not want to risk forgetting about it when you actually upgrade to that future version of Scrapy.

Example

COOKIES_ENABLED = True

COOKIES_ENABLED is True by default, so this setting is redundant and should be removed.