PyCQA/pyflakes

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1455 stars · 188 forks observed · 2026-08-28

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

Pyflakes is a fast, passive checker for Python source files that detects errors like undefined names and unused imports by parsing the AST rather than importing code. It deliberately never reports style issues and aims for zero false positives.

Use cases

• find bugs in python source files
• check for undefined names in my code
• detect unused imports in a python project
• lint python code without style complaints
• run a fast static analysis on python modules
• check code with side effects safely without importing it

When to choose

• you want fast, low-noise error checking with virtually no false positives
• your modules have side effects and are unsafe to import
• you want a minimal linter to combine with other tools like flake8

When to avoid

• you need PEP 8 style enforcement or configurable rules (use flake8 or pylint)
• you need project-wide or cross-file analysis
• you need auto-fixing of issues

Facets

cli-tool · maturity active

linter parser static-site-generator developer-tools programming-languages testing python cli cross-platform static-analysis code-quality false-positive-free flake8 python

Member repositories

For agents

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