This week I am listing three interesting projects, each one developed in a different programming language and with very different purposes.
Scrapy: If you want to do some data scraping or web crawling, this is the app for you. Made in Python, opensource, nicely documented and thoroughly tested. It seems like a project to learn from in your python learning journey.
WebKit: The web rendering engine powering Google Chrome and Safari. Using C++11 it is a great code base to learn from. It has a nice coding style guide and a great article about the kind of smart pointers used in it.