Python Categories & usages

Question

What should I learn after python to be expert in programming?
In fact, what skills do I need?

btw
Can anybody please make the data analytic clear for me and the usage of it in companies?
I was reading an article abour data science/analystic and It was a bit confusing for me.

Answer 1

If you can it would be cool to take a look at the article. Assuming you mean an expert in programming Data Analytics / Data Science, which is used in major companies as well as start up companies. My suggestion is to research companies like Uber and how they use algorithms to deliver a better service for their users. Google has revolutionized this area as well by deploying their Federated model on their users devices, basically turning their user base into a distributed network where they train and test algorithms on a sample of their user base. As for skills needed, take a language agnostic approach, start with a thorough understanding of Regression, k-Nearest Neighbor (KNN) and then tackle Artificial Neural Networks (ANN), learn Data Visualization (Pie charts are the devil), and be curious; ask questions, start with "Why?"