Python标准库copyright()函数的作用及使用方法咨询

Hey there! Let me clear up this confusion for you—you’re right that copyright() is part of Python’s standard library, but it’s not for setting code copyright info like you thought. Here’s the lowdown:

What is copyright()? #

This function comes from Python’s site module, which gets automatically imported when you start a Python session (that’s why you didn’t have to import it manually). Its sole purpose is to print Python’s own copyright information to the console.

How to Use It #

Since it’s already available in your global namespace, you just call it without any parameters:

copyright()

When you run this, you’ll see output like this (varies slightly by Python version):

Copyright (c) 2001-2024 Python Software Foundation.
All Rights Reserved.

Copyright (c) 2000 BeOpen.com.
All Rights Reserved.

Copyright (c) 1995-2001 Corporation for National Research Initiatives.
All Rights Reserved.

Copyright (c) 1991-1995 Stichting Mathematisch Centrum, Amsterdam.
All Rights Reserved.

Why Couldn’t You Find Documentation? #

Because copyright() is a convenience function that the site module injects into the global scope. If you want to see its official docstring, you can run this:

import site
print(site.copyright.__doc__)

You’ll get something like:

Print the copyright notice for Python.

Why Did PyCharm Suggest It? #

PyCharm’s code completion probably picked up the function from the global namespace when you were typing words related to "copy" or "copyright". It’s just a standard library helper that’s easy to miss in general docs since it’s not a core utility for everyday coding.

内容的提问来源于stack exchange，提问作者avivgood2