diff options
Diffstat (limited to 'Lib/dospath.py')
| -rw-r--r-- | Lib/dospath.py | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/Lib/dospath.py b/Lib/dospath.py index 98efe67..5a813d0 100644 --- a/Lib/dospath.py +++ b/Lib/dospath.py @@ -102,18 +102,26 @@ def dirname(p): return split(p)[0] -def commonprefix(m): - """Return the longest prefix of all list elements.""" +# Return the longest prefix of all list elements. +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. |