SCP36: Invalid setting value

What it does

Reports the assigning of a value to a setting that does not support that value.

Why is this bad?

Best case scenario, the value is ignored with a warning. Worst case scenario, the value breaks your code.

Example

settings.py
CONCURRENT_REQUESTS_PER_DOMAIN = "minimum"

Instead, check the settings reference documentation of the corresponding package (e.g. Scrapy settings) to see what values are valid for the setting, and assign a valid value:

settings.py
CONCURRENT_REQUESTS_PER_DOMAIN = 1