Awesome

scrapy-flake8

A Flake8 plugin to catch common issues on Scrapy spiders.

Code	Meaning
SCP01	There are URLs in `start_urls` whose netloc is not in `allowed_domains`
SCP02	There are URLs in `allowed_domains`
SCP03	Usage of `urljoin(response.url, '/foo')` instead of `response.urljoin('/foo')`
SCP04	Usage of `Selector(response)` in callback

This is a work in progress, so new issues will be added to this list.

To run this in your project, please make sure you have flake8 installed first:

$ pip install flake8

And then install flake8-scrapy:

$ pip install flake8-scrapy

Now, all you have to do is run it on your project:

$ flake8

And Flake8 will run the checks defined in this plugin.