--- a/configmix/__init__.py	Wed Mar 09 11:19:20 2016 +0100
+++ b/configmix/__init__.py	Wed Mar 09 11:32:08 2016 +0100
@@ -19,24 +19,25 @@
 __all__ = []
 
 
-#
-# From: https://github.com/jet9/python-yconfig/blob/master/yconfig.py
-# License: BSD License
-#
-def dict_merge(a, b):
-    """Recursively merges dict's. not just simple a['key'] = b['key'], if
-    both a and bhave a key who's value is a dict then dict_merge is called
-    on both values and the result stored in the returned dictionary."""
+if 0:
+    #
+    # From: https://github.com/jet9/python-yconfig/blob/master/yconfig.py
+    # License: BSD License
+    #
+    def dict_merge(a, b):
+        """Recursively merges dict's. not just simple a['key'] = b['key'], if
+        both a and bhave a key who's value is a dict then dict_merge is called
+        on both values and the result stored in the returned dictionary."""
 
-    if not isinstance(b, dict):
-        return b
-    result = deepcopy(a)
-    for k, v in b.iteritems():
-        if k in result and isinstance(result[k], dict):
-            result[k] = dict_merge(result[k], v)
-        else:
-            result[k] = deepcopy(v)
-    return result
+        if not isinstance(b, dict):
+            return b
+        result = deepcopy(a)
+        for k, v in b.iteritems():
+            if k in result and isinstance(result[k], dict):
+                result[k] = dict_merge(result[k], v)
+            else:
+                result[k] = deepcopy(v)
+        return result
 
 
 def merge(user, default):