NumPy vs. Pandas, and other flavors (Dask, Modin, Ray)
NumPy NumPy is a Python library for numerical computing that offers multi-dimensional arrays and indices as data structures and additional high-level math utilities. ndarray The unique »
Scaling Instragram Infrastructure
Notes Sending notifications to a person whose photo you liked: RabbitMQ -> Celery Django / Python for web server / application PostgreSQL to store users, medias, friendships, etc. »
Python Essentials
Scopes Python has closures, similar to Javascript, since functions are first class objects. But unlike Javascript, there are some subtle gotchas in regards to working with »
Build a Trie in Python
Problem In computer science, a trie (pronounced "try"), also called digital tree, radix tree or prefix tree, is a kind of search tree—an ordered tree »
String Manipulation in Python 3+
There are a few ways to search for a string in Python (3+): String operations str.find(sub[, start[, end]])] "shadow walker".find('w') => 5 This »