In collections, we learned about collections, and asked what are collections? What is their importance in any programming language? We learned about different types of collections, which are available in the Python programming language. We learned about module collection and its various members, which we import in our code. We also learned about counter, deque, ordered dictonary, default dictionary, and finally namedtuple. In the next chapter, we will take some object-oriented programming (OOPs) concepts and we will see how Python supports the OOPs concepts.