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lib/ansible/utils/plugins.py

@@ -126,6 +126,7 @@ class PluginLoader(object):
                     ret.append(fullpath)
 
         # look in any configured plugin paths, allow one level deep for subcategories
+        if self.config is not None:
             configured_paths = self.config.split(os.pathsep)
             for path in configured_paths:
                 path = os.path.realpath(os.path.expanduser(path))