fixed semantics of commonprefix to work by path elements instead of
characters.
diff --git a/Lib/posixpath.py b/Lib/posixpath.py
index 14b9270..1be5d29 100644
--- a/Lib/posixpath.py
+++ b/Lib/posixpath.py
@@ -118,14 +118,21 @@
def commonprefix(m):
"Given a list of pathnames, returns the longest common leading component"
if not m: return ''
- prefix = m[0]
- for item in m:
+ n = m[:]
+ for i in range(len(n)):
+ n[i] = n[i].split(os.sep)
+ # if os.sep didn't have any effect, try os.altsep
+ if os.altsep and len(n[i]) == 1:
+ n[i] = n[i].split(os.altsep)
+
+ prefix = n[0]
+ for item in n:
for i in range(len(prefix)):
if prefix[:i+1] <> item[:i+1]:
prefix = prefix[:i]
if i == 0: return ''
break
- return prefix
+ return os.sep.join(prefix)
# Get size, mtime, atime of files.