- pipenv install
- pipenv shell
- pip install scrapy
- add "XPath Helper" extension for Chrome
- CON UN PROGETTO 
	- scrapy startproject superheroes
	- cd superheroes/spiders
	- write class superhero_spider.py
	- scrapy crawl superheroes -o sup.json
- SENZA UN PROGETTO
	- scrapy genspider superhero_spider www.superherodb.com
	- write class superhero_spider.py	
	- scrapy runspider superhero_spider.py -o sup.json