flake8-pie 0.2.0

A flake8 extension that implements misc. lints

flake8-pie

A flake8 extension that implements misc. lints

lints

PIE781: Assign and Return

Based on Clippy's let_and_return and Microsoft's TSLint rule 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

PIE782: No Pointless F Strings

Warn about usage of f-string without templated values.

examples

x = (
    f"foo {y}", # ok
    f"bar" # error
)

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/*