diff --git a/lib/galaxy/util/directory_hash.py b/lib/galaxy/util/directory_hash.py
index 1bf306db3de..8bfd1babce1 100644
--- a/lib/galaxy/util/directory_hash.py
+++ b/lib/galaxy/util/directory_hash.py
@@ -11,7 +11,7 @@ def directory_hash_id( id ):
     >>> directory_hash_id("777777777")
     ['000', '777', '777']
     >>> directory_hash_id("135ee48a-4f51-470c-ae2f-ce8bd78799e6")
-    ['1','3','5']
+    ['1', '3', '5']
     """
     s = str( id )
     l = len( s )
@@ -26,5 +26,5 @@ def directory_hash_id( id ):
         # Break into chunks of three
         return [ padded[ i * 3 : (i + 1 ) * 3 ] for i in range( len( padded ) // 3 ) ]
     else:
-        #assume it is a UUID
+        # assume it is a UUID
         return list(iter(s[0:3]))