microsoft/pyright

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

15654 stars · 1817 forks observed · 2026-09-24

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Pyright is a full-featured, standards-based static type checker for Python built by Microsoft, designed for high performance on large codebases. It ships as both a command-line tool and a Visual Studio Code extension.

Use cases

• check python code for type errors
• static type checking for a large python codebase
• catch type mistakes in CI before merging
• get type checking in vscode
• validate type annotations in python project
• run type checker from command line

When to choose

• you need fast, standards-compliant type checking for Python
• you want a VS Code integrated type checker
• your codebase is large and checking speed matters
• you want to enforce type hints in CI pipelines

When to avoid

• you need runtime type validation rather than static analysis
• you prefer mypy's plugin ecosystem or mypy-specific features
• your project does not use type annotations at all

Facets

cli-tool · maturity active

type-system linter developer-tools cli developer-tools programming-languages testing python cross-platform cli editor-plugin static-analysis type-checking python vscode-extension microsoft editor-plugin nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="microsoft/pyright")