mtshiba/pylyzer

A fast, feature-rich static code analyzer & language server for Python observed · 2026-08-28

github.com/mtshiba/pylyzer · homepage · Rust · MIT (permissive) observed · 2026-08-28

Health v2 · maintenance only

42/100

Activity 20
Release rhythm 40
Longevity 97

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

gap_med: 7.5
age_days: 1360
days_rel: 554
days_push: 481
n_releases_24m: 21

Full methodology

Adoption not part of the score

2859 stars · 43 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Pylyzer is a fast static code analyzer and language server for Python, written in Rust, offering type checking and rich LSP features like completion and renaming. It is now in maintenance mode, with the author contributing to astral-sh/ty instead.

Use cases

type check python code fast
static analysis for python projects
python language server for vscode
get readable type error reports for python
fast alternative to pyright and pytype
rename and autocomplete python in editor

When to choose

you need very fast Python type checking with clear error messages
you want an LSP server with completion and renaming for Python in any editor

When to avoid

you need active development or new features (project is in maintenance; consider astral-sh/ty)
you need linting or formatting (use Ruff instead)

Facets

cli-tool · maturity maintenance

linter type-system editor developer-tools developer-tools cli cross-platform editor-plugin python static-analysis type-checker language-server lsp rust

3 sources

readme: https://github.com/mtshiba/pylyzer · fetched 2026-08-28 · 8b0aadbd33f6
homepage: http://mtshiba.github.io/pylyzer/ · fetched 2026-08-29 · cbc791f79f6d
registry_crates: https://crates.io/api/v1/crates/pylyzer · fetched 2026-08-29 · d2ce48be3c17

Member repositories

Repository	Role	Health v2
mtshiba/pylyzer	main	42

For agents

markdown · JSON · MCP: product_card(name="mtshiba/pylyzer")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem