Index: Lib/zipfile.py
===================================================================
--- Lib/zipfile.py	(version 67893)
+++ Lib/zipfile.py	(working copy)
@@ -954,13 +954,22 @@
         else:
             targetpath = os.path.join(targetpath, member.filename)

+        isdir = False
+
+        if targetpath[-1:] == "/":
+            isdir = True
+
         targetpath = os.path.normpath(targetpath)

         # Create all upper directories if necessary.
         upperdirs = os.path.dirname(targetpath)
-        if upperdirs and not os.path.exists(upperdirs):
+        if upperdirs and not os.path.isdir(upperdirs):
             os.makedirs(upperdirs)

+        if isdir:
+            os.mkdir(targetpath)
+            return targetpath
+
         source = self.open(member, pwd=pwd)
         target = file(targetpath, "wb")
         shutil.copyfileobj(source, target)