diff options
Diffstat (limited to 'Lib/genericpath.py')
| -rw-r--r-- | Lib/genericpath.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Lib/genericpath.py b/Lib/genericpath.py index 671406197a..303b3b349a 100644 --- a/Lib/genericpath.py +++ b/Lib/genericpath.py @@ -69,6 +69,12 @@ def getctime(filename): def commonprefix(m): "Given a list of pathnames, returns the longest common leading component" if not m: return '' + # Some people pass in a list of pathname parts to operate in an OS-agnostic + # fashion; don't try to translate in that case as that's an abuse of the + # API and they are already doing what they need to be OS-agnostic and so + # they most likely won't be using an os.PathLike object in the sublists. + if not isinstance(m[0], (list, tuple)): + m = tuple(map(os.fspath, m)) s1 = min(m) s2 = max(m) for i, c in enumerate(s1): |