Python linters

Ruff

• Ruff
• Docs
  • Configuration
  • All settings
  • Rules
  • Error suppression
• Included in LazyVim python lang extra
• Container image i.e.: registry.gitlab.com/pipeline-components/ruff:latest
• pre-commit hook

Issues

• FR: Upstream/preset/profile to preconfigure options
• Support line filter / diff input
  • Support baselines

Usage

Ignore rules: Error suppression, i.e.:

# Ignore E741 and F841.
i = 1  # noqa: E741, F841

# Ignore _all_ violations.
x = 1  # noqa

Pyright

• Included in LazyVim python lang extra, but can be easily replaced with basedpyright

Basedpyright

pyright fork with various type checking improvements, improved vscode support and pylance features built into the language server

• GitHub
• Docs
• Rejected: Support #noqa annotation "The# noqa comment is really meant for linters, Pyright doesn't perform any linting (code style) checks, only type checks."

File-level Type Controls: Globally ignore for whole file (insert at the top of file), i.e.:

# pyright: strict
# pyright: basic
# pyright: strict, reportPrivateUsage=false
# pyright: reportPrivateUsage=warning, reportOptionalCall=error

Line-level Diagnostic Suppression:

# pyright: ignore[reportUnknownArgumentType]
# pyright: reportAny=false,reportUnknownVariableType=false,reportUnknownMemberType=false

basedpyright issues

• I cannot find a way to both use noqa and pyright:… for the same line

ty

An extremely fast Python type checker and language server, written in Rust. WARN ty is pre-release software and not ready for production use. Expect to encounter bugs, missing features, and fatal errors.

• By the authors of ruff
• GitHub
• Docs

Suppression:

# ty: ignore[unsupported-operator]
# ty: ignore[missing-argument, invalid-argument-type]
# type: ignore