Dave Gray offers a solid, free Python tutorial that runs for about 9 hours. It’s a pretty methodical course, starting with the basics and moving into more complex stuff like closures and recursion. He ...

Built on top of plotly.js, plotly.py is a high-level, declarative charting library. plotly.js ships with over 30 chart types, including scientific charts, 3D graphs, statistical charts, SVG maps, ...

Data work in 2026 asks for more than chart building. Professionals are expected to clean data, query databases, explain ...