Fix binary file read

hackersite.wsgi

@@ -47,7 +47,7 @@ def statics(bobo_request, f):
     if content_type is not None:
         response.content_type = content_type
     try:
-        response.body = open(pth, "r").read()
+        response.body = open(pth, "rb").read()
     except IOError:
         raise bobo.NotFound
     return response