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A docstring in Python is a special type of string used to document modules, classes, functions, or methods. It is enclosed within triple quotes (""" or ''') and provides a way to describe the purpose, parameters, return values, and other details of the code. Unlike comments, docstrings are accessible at runtime via the __doc__ attribute, making them useful for generating documentation or providing help in interactive environments.
Key Features of Docstrings
Purpose: They describe what a module, class, or function does.
Accessibility: Docstrings can be accessed programmatically using the help() function or the __doc__ attribute.
Documentation Generation: Tools like Sphinx can parse docstrings to generate documentation automatically.
Writing Docstrings
Python's official guidelines for docstrings are defined in PEP 257, and they recommend:
[Python] docstringのスタイルと書き方 #コーディング規約 - Qiita
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