What is the purpose of the document in Python?

In Python, docstrings are strings used to describe the purpose and functionality of modules, functions, classes, or methods. They are included in the code and recognized by the Python interpreter to generate documentation. Docstrings can be accessed using the help() function or the __doc__ attribute of a module.

The main purposes of documentation strings are as follows:

1. Provide instructions and documentation on how to use the code so that other developers can easily understand its functionality and usage.
2. As a foundation for automatically generated documents, tools like Sphinx can be used to generate code documentation.
3. Using docstrings can help to better organize and maintain code, improve readability and maintainability.
4. In an interactive interpreter, the docstring can be displayed as help information to assist users in querying the usage of functions or modules.
5. In some Integrated Development Environments (IDEs), documentation strings can also be displayed as information for code suggestions and auto-completion.