Guard mutable default arguments with None sentinel

org.openrewrite.python.cleanup.DefaultMutableArg

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.

Recipe source

This recipe is only available to users of Moderne.

This recipe is available under the Moderne Proprietary License.

Used by

This recipe is used as part of the following composite recipes:

• Python cleanup suite

Usage

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