VS Code Extensions
P

PyCSD

by LordStarship

Real-time Long Method, Long Parameter List, and Large Class detection for Python using a trained Random Forest classifier.

Downloads

15

Rating

— (0)

Version

1.0.1

Last updated

Apr 21, 2026

Detects Long Method, Long Parameter List, and Large Class code smells in Python files in real-time using a trained Random Forest classifier.

What it does

  • Underlines the function or class name in yellow when a smell is detected
  • Hover over the underline to see the smell type, metric value, and confidence score
  • Click "Show Refactoring Example" in the tooltip to open a side-by-side unsaved Python file with before/after refactoring examples specific to that smell
  • A lightbulb code action also appears on flagged lines
  • Runs automatically on file save

Limitations

  • For Mac and Linux user, you need to install the dependencies such as joblib, scikit-learn, numpy, and pandas first.

Settings

Setting Default Description
codeSmellDetector.pythonPath python Python executable path
codeSmellDetector.confidenceThreshold 0.5 Minimum confidence to flag (0–1)

Credit

This extension is made possible as an advancement on research done by Vatanapakorn et al. (Vatanapakorn, N., Soomlek, C., & Seresangtakul, P. (2022). Python Code Smell Detection Using Machine Learning. 2022 26th International Computer Science and Engineering Conference (ICSEC), 128–133. https://doi.org/10.1109/ICSEC56337.2022.10049330).

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