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A flake8 extension that checks for assignment and return in Python

Project description

no-assignment-and-return CircleCI pypi

A flake8 extension that checks for assignment and return in Python

A Flake8 lint based on Clippy's let_and_return and Microsoft's TSLint lint no-unnecessary-local-variable.

For more info on the structure of this lint, see the accompanying blog post.

examples

# error
def foo():
   x = bar()
   return x

# allowed
def foo():
   x, _ = bar()
   return x

see: flake8_assign_and_return.py for all the test cases

dev

# install dependencies
poetry install

# install plugin to work with flake8
poetry run python setup.py install

# test
poetry run pytest
# or with watch
poetry run ptw

# typecheck
poetry run mypy *.py

# format
poetry run black .

# lint
poetry run flake8 .

uploading a new version to PyPi

# increment `__version__` and pyproject.toml `version`

# build new distribution files
rm -rf dist && poetry run python setup.py sdist bdist_wheel

# upload to pypi (Note: this will ask for login credentials)
poetry run twine upload dist/*

Project details


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