This is an open source and collaborative framework for extracting data from websites. To be clear, scrapy is not a library, it is a framework that provides many functionalities, such as managing requests, preserving user sessions, following redirects, and handling output pipelines. It is fast, simple and extensible, which makes scrapy one of the most useful toolkits for scraping to a data scientist.

There are many other data scraping services available, but usually they are all paid services. Scrapy is one of the most robust and simple open source frameworks in the Python market today.