Extended make lint Execution Time

[Okabe-Junya]

What's the issue?

When I code for this project and run make lint before committing, it takes a long time.

Why is this happening?

I've set up the development environment for this repo using venv. Therefore, there's a venv directory (which isn't being tracked by git, by the way). Tools like flake8 and pylint check this directory, resulting in the extended execution time.

How should we resolve this?

Modifying the Makefile or .pylintrc could likely address this issue.

Future considerations (not addressed here)

While we currently pass options as arguments when executing flake8, we might also consider using a configuration file like pyproject.toml.