Python editor with NumPy already loaded. Press Ctrl+Enter to run. New to NumPy? Follow the tutorial and paste each exercise here.
Runs in your browser (Pyodide) — NumPy is preloaded as np.
Add a CSV or text file, then np.loadtxt("units.csv", delimiter=",")
(or the real filename). Uploads persist after refresh. Writes such as
np.savetxt("out.csv", arr, delimiter=",") show up on the file
chips — click ↓ to download.