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PythonIntermediateabout 6 hours14 lessons
Recommended first: Signal Lab, Art Studio
You run the control system of a busy shipping depot. Cargo manifests arrive as JSON, and half of them are broken: missing fields, wrong types, bad container IDs, impossible weights, text that is not even JSON. Your code decides what gets loaded, quarantined or rejected, explains why, and never, ever crashes.
Each lesson adds one working part to your build.
Chapter 1
Read what a crash is telling you, then teach the gate to survive it.
Chapter 2
Stop returning vague failures. Raise errors that say what went wrong, chain their causes, and guarantee cleanup.
Chapter 3
Manifests arrive as JSON text. Read it safely, write it back out, and check every field at the door.
Chapter 4
Keep an operations log, then wire every piece into one pipeline that survives anything.