This is a stripped-down copy of the 3rd-party pyperclip package.
No modifications besides excluding most files.
It is used by the "text" GUI.
At revision https://github.com/asweigart/pyperclip/blob/781603ea491eefce3b58f4f203bf748dbf9ff003/src/pyperclip/__init__.py (version 1.8.2)