flake8-type-checking
A Flake8 plugin that identifies which Python imports should be moved into or out of typing.TYPE_CHECKING blocks to optimize runtime performance and prevent circular imports.
What is flake8-type-checking?
flake8-type-checking is a Flake8 plugin that helps Python developers manage imports used exclusively for type hinting. It identifies which imports should be moved into `typing.TYPE_CHECKING` blocks to avoid runtime evaluation, reducing import overhead and preventing circular dependencies. The plugin also guides users on handling forward references through string literals or postponed annotations.
Python developers who use type hints extensively and want to optimize their code's runtime performance and maintainability, particularly those working with large codebases or heavy libraries like pandas.
It automates the tedious process of manually managing type-checking imports, reduces the risk of import cycles, and eliminates unnecessary runtime imports, leading to cleaner and faster Python code.
Overview
Flake8 plugin for managing type-checking imports & forward references.
Use Cases
Best For
- Optimizing runtime performance by removing heavy library imports from type hints
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