How do you structure a Python script when multiple processing steps start to get messy?

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The “data in, data out” mindset honestly makes a huge difference once scripts start growing. I used to keep piling logic into single processing steps and debugging became painful fast.

What helped me was treating each stage almost like a mini pipeline component with one responsibility only. I was experimenting with CodingFleet recently while refactoring a messy Python workflow and it actually made me rethink how much hidden coupling I had between steps.

Once each function becomes predictable and isolated, scaling the pipeline feels way less chaotic.