diff --git a/Doc/library/pathlib.rst b/Doc/library/pathlib.rst index 4380122eb1be7d..4b48880d6d9a18 100644 --- a/Doc/library/pathlib.rst +++ b/Doc/library/pathlib.rst @@ -1563,6 +1563,11 @@ Copying, moving and deleting This argument has no effect when copying files on Windows (where metadata is always preserved). + .. note:: + Where supported by the operating system and file system, this method + performs a lightweight copy, where data blocks are only copied when + modified. This is known as copy-on-write. + .. versionadded:: 3.14