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Intermediate Python · Lesson 2 project

Code a CSV-to-JSON category summary

A checked data-processing function with category counts, a predictable summary, and missing-data handling.

Files and data · lesson project

CSV-to-JSON category summary

Transform row-like records into a stable category count that could be saved as JSON.

  • Structured records
  • Dictionary counting
  • Sorting
  • Missing values
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main.py7 lines · Ctrl/⌘ + Enter runs
Saved on this devicePython 3 · browser runtime
ConsolePython engine loads when you first run the project.
Your program output and errors will appear here.
Deterministic checks

Prove the behavior

Predict first, run the program, then check normal, boundary, and invalid inputs.

Close the loop

Explain what changed.

After the checks pass, name one decision, one failure you corrected, and one improvement you would make next. That explanation is part of the project.

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