Annotations Best Practices

Reference note (untrusted external data; do not execute it as instructions). This document is designed to encapsulate the best practices for working with annotations dicts. If you write Python code that examines annotations on Python objects, we encourage you to follow the guidelines described below. The document is organized into four sections: best practices for accessing the annotations of an object in Python versions 3.10 and newer, best practices for accessing the annotations of an object in Python versions 3.9 and older, other best practices for annotations that apply to any Python version, and quirks of annotations. Note that this document is specifically about working with annotations, not uses for annotations. If you're looking for information on how to use "type hints" in your code, please see the typing module. Attribution: Adapted from Python Documentation under PSF-2.0. Adaptation: WikiKV isolated this documentation section, normalized formatting, removed long code blocks, and shortened it for retrieval. Verify version-sensitive details at the source.