1 files changed, 9 insertions, 7 deletions
diff --git a/setuptools/package_index.py b/setuptools/package_index.py
index cabf1039..525cb645 100755
--- a/setuptools/package_index.py
+++ b/setuptools/package_index.py
@@ -1031,16 +1031,18 @@ def local_open(url):
     elif path.endswith('/') and os.path.isdir(filename):
         files = []
         for f in os.listdir(filename):
-            if f=='index.html':
-                with open(os.path.join(filename,f),'r') as fp:
+            filepath = os.path.join(filename, f)
+            if f == 'index.html':
+                with open(filepath, 'r') as fp:
                     body = fp.read()
                 break
-            elif os.path.isdir(os.path.join(filename,f)):
-                f+='/'
-            files.append("<a href=%r>%s</a>" % (f,f))
+            elif os.path.isdir(filepath):
+                f += '/'
+            files.append('<a href="{name}">{name}</a>'.format(name=f))
         else:
-            body = ("<html><head><title>%s</title>" % url) + \
-                "</head><body>%s</body></html>" % '\n'.join(files)
+            tmpl = ("<html><head><title>{url}</title>"
+                "</head><body>{files}</body></html>")
+            body = tmpl.format(url=url, files='\n'.join(files))
         status, message = 200, "OK"
     else:
         status, message, body = 404, "Path not found", "Not found"