Linting & Formatting

10 pages in this section.

Why linting, formatting, and type checking are three genuinely different mechanisms that happen to live in the same pyproject.toml file, and how they compose into a single quality pipeline from editor to pre-commit to CI.

Explainer Python Linting Formatting Ast

Ruff Setup

The fast all-in-one linter/formatter replacing flake8/isort.

Python Linting Formatting Ruff Linter

Black / Ruff Format

Deterministic formatting and style consensus.

Python Linting Formatting Black Ruff Format

Essential Lint Rules

The high-signal rule sets worth enabling.

Python Linting Formatting Lint Rules Ruff

isort & Import Organization

Grouping and ordering imports (or letting Ruff do it).

Python Linting Formatting Isort Imports

mypy & pyright in CI

Python Linting Formatting Mypy Pyright

pre-commit Hooks

Running lint/format/type checks before every commit.

Python Linting Formatting Pre Commit Git Hooks

Editor Integration

VS Code / PyCharm setup for instant feedback.

Python Linting Formatting Vscode Pycharm

Linting in CI/CD

Enforcing quality on pull requests.

Python Linting Formatting Ci Cd Github Actions

Linting & Formatting Best Practices

A pragmatic, low-friction quality baseline.

Python Linting Formatting Best Practices Quality

Linting & Formatting

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Linting & Formatting