Type Tracing - as a program runs you trace it and record the types of variables coming in and out of functions, and being assigned to vari... (more…)

This is like a data collection step for a much bigger problem. You might want to do some form of analysis of the stories being posted on HackerNews or see which user has received the most upvotes in the past year. To do anything like that, we need the dat... (more…)

So-called “logic programming” has been a niche programming topic since Prolog was introduced in the 80s. In my experience, most posts that cover logic programming introduce the core concepts and stop there. The examples they give are mostly toy proble...

Last month, we released a new way to quickly review pull requests by listing the changed functions or methods in the pull request file finder. Now Python enthusiasts can quickly identify changed fu... (more…)

What open source programming language is the best for data science, R or Python?