The usual.

Lib/dos-8x3/posixpat.py

@@ -56,9 +56,8 @@ def join(a, *p):
 
 def split(p):
     """Split a pathname.  Returns tuple "(head, tail)" where "tail" is 
-everything after the final slash.  Either part may be empty"""
-    import string
-    i = string.rfind(p, '/') + 1
+    everything after the final slash.  Either part may be empty."""
+    i = p.rfind('/') + 1
     head, tail = p[:i], p[i:]
     if head and head <> '/'*len(head):
         while head[-1] == '/':
@@ -73,7 +72,7 @@ everything after the final slash.  Either part may be empty"""
 
 def splitext(p):
     """Split the extension from a pathname.  Extension is everything from the
-last dot to the end.  Returns "(root, ext)", either part may be empty"""
+    last dot to the end.  Returns "(root, ext)", either part may be empty."""
     root, ext = '', ''
     for c in p:
         if c == '/':
@@ -95,7 +94,7 @@ last dot to the end.  Returns "(root, ext)", either part may be empty"""
 
 def splitdrive(p):
     """Split a pathname into drive and path. On Posix, drive is always 
-empty"""
+    empty."""
     return '', p
 
 
@@ -255,9 +254,9 @@ def ismount(path):
 
 def walk(top, func, arg):
     """walk(top,func,arg) calls func(arg, d, files) for each directory "d" 
-in the tree  rooted at "top" (including "top" itself).  "files" is a list
-of all the files and subdirs in directory "d".
-"""
+    in the tree  rooted at "top" (including "top" itself).  "files" is a list
+    of all the files and subdirs in directory "d".
+    """
     try:
         names = os.listdir(top)
     except os.error:
@@ -281,12 +280,12 @@ of all the files and subdirs in directory "d".
 
 def expanduser(path):
     """Expand ~ and ~user constructions.  If user or $HOME is unknown, 
-do nothing"""
+    do nothing."""
     if path[:1] <> '~':
         return path
     i, n = 1, len(path)
     while i < n and path[i] <> '/':
-        i = i+1
+        i = i + 1
     if i == 1:
         if not os.environ.has_key('HOME'):
             return path
@@ -298,7 +297,7 @@ do nothing"""
         except KeyError:
             return path
         userhome = pwent[5]
-    if userhome[-1:] == '/': i = i+1
+    if userhome[-1:] == '/': i = i + 1
     return userhome + path[i:]
 
 
@@ -310,7 +309,7 @@ _varprog = None
 
 def expandvars(path):
     """Expand shell variables of form $var and ${var}.  Unknown variables
-are left unchanged"""
+    are left unchanged."""
     global _varprog
     if '$' not in path:
         return path
@@ -344,9 +343,8 @@ def normpath(path):
     """Normalize path, eliminating double slashes, etc."""
     if path == '':
         return '.'
-    import string
     initial_slash = (path[0] == '/')
-    comps = string.split(path, '/')
+    comps = path.split('/')
     new_comps = []
     for comp in comps:
         if comp in ('', '.'):
@@ -357,7 +355,7 @@ def normpath(path):
         elif new_comps:
             new_comps.pop()
     comps = new_comps
-    path = string.join(comps, '/')
+    path = '/'.join(comps)
     if initial_slash:
         path = '/' + path
     return path or '.'