Clarity

jedi/api/__init__.py

@@ -117,6 +117,7 @@ class Script(object):
         # Load the Python grammar of the current interpreter.
         project = get_default_project()
         # TODO deprecate and remove sys_path from the Script API.
+        if sys_path is not None:
             project._sys_path = sys_path
         self._evaluator = Evaluator(project, environment=environment, script_path=path)
         self._project = project