flake8-kwargs-spaces 1.0.1

Flake8 plugin enforcing kwargs spacing rules

Flake8 Keyword Arguments with Spaces Plugin

The flake8-kwargs-spaces package is a plugin for Flake8 that enforces consistent spacing around the equals sign (=) in function arguments, in both definitions and calls. By integrating this plugin, developers can ensure uniform code formatting and adherence to style guidelines.

Rules

• Multiline: When a keyword argument or default is on its own line (e.g. one argument under the def or call), use spaces around = → key = 'val'. Violations are reported as EKS100.
• Inline: When the argument is on the same line as the def/call, or when multiple keyword arguments appear on the same line, use no spaces around = → key='val'. Violations are reported as EKS251.

Anti-pattern

def foo(
    key='val'
):
    return key


foo(
    key='val'
)

Best practice

def foo(
    key = 'val'
):
    return key


foo(
    key = 'val'
)

Still anti-pattern

def foo(key = 'val'):
    return key


foo(key = 'val')

Still best practice

def foo(key='val'):
    return key


foo(key='val')

Installation

From PyPI (once published):

pip install flake8-kwargs-spaces

From source (development or before first publish):

1. Clone the repository and enter it:

   git clone [e-mail]:sahargavriely/flake8-kwargs-spaces.git
   cd flake8-kwargs-spaces
   

2. Run the installation script, then activate the virtual environment:

   ./scripts/install.sh
   source venv/bin/activate
   

3. (Optional) Run the test suite to verify everything works:

   pytest tests/
   

4. The install script builds a wheel under wheels/. To use the plugin with Flake8, install that wheel in the environment where you want the plugin enforced:

   pip install ./wheels/flake8_kwargs_spaces-*.whl
   

5. To avoid conflicts with Flake8’s built-in E251 rule, add a setup.cfg (or use your existing one) with:

   [flake8]
   ignore = E251
   

6. (Optional) Enable pre-commit hooks:

   pre-commit install --hook-type pre-commit --hook-type pre-push
   pre-commit run --all-files
   pre-commit run --hook-stage pre-push --all-files
   

License

MIT. See LICENSE.

Thanks

• https://www.youtube.com/watch?v=ot5Z4KQPBL8
• https://www.youtube.com/watch?v=4L0Jb3Ku81s
• https://www.youtube.com/watch?v=GaWs-LenLYE
• https://www.youtube.com/watch?v=02aAZ8u3wEQ