# Bug report ### Bug description: ```python >>> import ntpath >>> ntpath.commonpath(["/foo", "foo"]) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<frozen ntpath>", line 808, in commonpath ValueError: Can't mix absolute and relative paths ``` `/foo` is not an absolute path, but a rooted path, which can't be mixed with not-rooted paths. ### CPython versions tested on: CPython main branch ### Operating systems tested on: Windows <!-- gh-linked-prs --> ### Linked PRs * gh-117382 <!-- /gh-linked-prs -->