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-rw-r--r--Lib/ntpath.py11
1 files changed, 5 insertions, 6 deletions
diff --git a/Lib/ntpath.py b/Lib/ntpath.py
index f1c48ecd1e5..ecfc7d48dbb 100644
--- a/Lib/ntpath.py
+++ b/Lib/ntpath.py
@@ -831,23 +831,22 @@ def relpath(path, start=None):
raise
-# Return the longest common sub-path of the sequence of paths given as input.
+# Return the longest common sub-path of the iterable of paths given as input.
# The function is case-insensitive and 'separator-insensitive', i.e. if the
# only difference between two paths is the use of '\' versus '/' as separator,
# they are deemed to be equal.
#
# However, the returned path will have the standard '\' separator (even if the
# given paths had the alternative '/' separator) and will have the case of the
-# first path given in the sequence. Additionally, any trailing separator is
+# first path given in the iterable. Additionally, any trailing separator is
# stripped from the returned path.
def commonpath(paths):
- """Given a sequence of path names, returns the longest common sub-path."""
-
+ """Given an iterable of path names, returns the longest common sub-path."""
+ paths = tuple(map(os.fspath, paths))
if not paths:
- raise ValueError('commonpath() arg is an empty sequence')
+ raise ValueError('commonpath() arg is an empty iterable')
- paths = tuple(map(os.fspath, paths))
if isinstance(paths[0], bytes):
sep = b'\\'
altsep = b'/'