🔧 Scrapy Signals: The Complete Beginner's Guide (Make Your Spider Talk to You)

When I first heard about Scrapy signals, I thought "why would I need this?" I was scraping just fine without them.

Then I needed to send an email when my spider finished. I tried putting it at the end of parse(). Didn't work. The spider kept running after parse() finished.

I tried putting it in a pipeline. Didn't work either. The pipeline...