Examples and source code for this chapter are available in the GitHub repository in the Chapter04 folder: https://github.com/PacktPublishing/Learning-Python-Networking-Second-Edition.
You will need to install Python 3 distribution on your local machine. For the last section, Working with Scrapy in the cloud, you will need an active Scrapinghub account, which you can install with the following link: https://app.scrapinghub.com.