--- /usr/lib/python3.3/lib2to3/fixes/fix_import.py	2013-06-13 14:43:13.000000000 +0200
+++ Limnoria/2to3/fix_import.py	2013-07-16 22:59:56.000000000 +0200
@@ -11,9 +11,10 @@
 """
 
 # Local imports
from .. import fixer_base
-from os.path import dirname, join, exists, sep
+from os.path import dirname, join, exists, sep, split, isdir
+from os import listdir
from ..fixer_util import FromImport, syms, token
 
 
 def traverse_imports(names):
@@ -93,7 +94,13 @@
         # so can't be a relative import.
         if not exists(join(dirname(base_path), "__init__.py")):
             return False
-        for ext in [".py", sep, ".pyc", ".so", ".sl", ".pyd"]:
-            if exists(base_path + ext):
+        (path, filename) = split(base_path)
+        if isdir(base_path) and filename in listdir(path):
+            # We use listdir too because of case-insensitivity on Windows
+            return True
+        for ext in [".py", ".pyc", ".so", ".sl", ".pyd"]:
+            if (filename + ext) in listdir(path):
+                # We use this instead of os.path.exists because of case-insensitivity
+                # on Windows
                 return True
         return False