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Guard mutable default arguments with None sentinel

Recipe IDorg.openrewrite.python.cleanup.DefaultMutableArg

Artifactopenrewrite-static-analysis

Change mutable default values ([], {}, set()) to None and prepend an if arg is None: arg = <original> guard so each call gets its own fresh instance.

Single recipePythonModerne Proprietary License

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Usage

Run this recipe

In order to run Python recipes, you will need to use the Moderne CLI.

Once the CLI is installed, you can install this Python recipe package by running the following command:

Install the recipe package

mod config recipes pip install openrewrite-static-analysis

Then, you can run the recipe via:

Run the recipe

mod run . --recipe org.openrewrite.python.cleanup.DefaultMutableArg