Corrected a TypeError when reading a local package index on Python 3. Fixes #116.

CHANGES.txt

@@ -2,6 +2,13 @@
 CHANGES
 =======
 
+-----
+1.4.2
+-----
+
+* Issue #116: Correct TypeError when reading a local package index on Python
+  3.
+
 -----
 1.4.1
 -----

setuptools/package_index.py

@@ -1039,7 +1039,7 @@ def local_open(url):
         files = []
         for f in os.listdir(filename):
             if f=='index.html':
-                fp = open(os.path.join(filename,f),'rb')
+                fp = open(os.path.join(filename,f),'r')
                 body = fp.read()
                 fp.close()
                 break