Renamed to posixpath; changed def'n of split().
diff --git a/Lib/posixpath.py b/Lib/posixpath.py
index f244ca5..1b1b3ae 100644
--- a/Lib/posixpath.py
+++ b/Lib/posixpath.py
@@ -1,4 +1,4 @@
-# Module 'path' -- common operations on POSIX pathnames
+# Module 'posixpath' -- common operations on POSIX pathnames
import posix
import stat
@@ -31,20 +31,24 @@
return a + '/' + b
-# Split a path in head (empty or ending in '/') and tail (no '/').
-# The tail will be empty if the path ends in '/'.
-# It is always true that head + tail == p; also join(head, tail) == p.
-# Note that because head ends in '/', if you want to find all components
-# of a path by repeatedly getting the head, you will have to strip off
-# the trailing '/' yourself (another function should be defined to
-# split an entire path into components.)
+# Split a path in head (everything up to the last '/') and tail (the
+# rest). If the original path ends in '/' but is not the root, this
+# '/' is stripped. After the trailing '/' is stripped, the invariant
+# join(head, tail) == p holds.
+# The resulting head won't end in '/' unless it is the root.
def split(p):
+ if p[-1:] == '/' and p <> '/'*len(p):
+ while p[-1] == '/':
+ p = p[:-1]
head, tail = '', ''
for c in p:
tail = tail + c
if c == '/':
head, tail = head + tail, ''
+ if head[-1:] == '/' and head <> '/'*len(head):
+ while head[-1] == '/':
+ head = head[:-1]
return head, tail
@@ -119,7 +123,7 @@
return stat.S_ISDIR(st[stat.ST_MODE])
-# Is a path a regulat file?
+# Is a path a regular file?
# This follows symbolic links, so both islink() and isdir() can be true
# for the same path.