Every time you create an instance of a class in Python, you are using up some memory–including overhead that might actually be larger than the data you care about. Create a million objects, and you have a million times the overhead. And that overhead can ... (more…)

One of the most complicated concepts to wrap our heads around has to be recursion; to understand it well it always helps to have some sort of recursion visualization. In this essay, we build a super-simple yet effective visualizer for recursive functions ... (more…)

Design by contract for Python with many validators support. - life4/deal... (more…)

Learn how to make Python code easier to read and less error prone by gradual typing... (more…)

Want to prepare for the future of search? Learn practical natural language processing (NLP) while building a simple knowledge graph from scratch. (more…)