Python Itertools: For a faster and memory efficient code

The reason python stands out from many other languages is because of it’s simplicity and easy to work with, and the data science community has put the work in to create the plumbing it needs to solve complex computational problems and emphasizes productivity and readability. However many complains that it’s slow and doesn’t perform very well on a large set of data. There are lot of effective and memory efficient python modules which are not well known among the community and especially beginners doesn’t learn those things in MOOC’s. Since MOOC’s is a way to introduce you with the python…