[PythonActor] add workaround in python actor to take script.py

pypushflow/PythonActor.py

@@ -189,8 +189,10 @@ class PythonActor(AbstractActor):
         # Import script
         self.script = script
         if script is not None:
-            module = importlib.import_module(os.path.splitext(script)[0])
-            node = Node('.'.join((module.__name__, 'run')))
+            # module = importlib.import_module(os.path.splitext(script)[0])
+            if script.endswith('.py'):
+                script = ''.join(os.path.splitext(script)[:-1])
+            node = Node('.'.join((script, 'run')))
             self.actor_wrapper = ActorWrapper(node=node)
         else:
             self.actor_wrapper = ActorWrapper(node=node)