update

console_play.py

@@ -35,8 +35,11 @@ def play_unconstrained():
         while(action == ""):
             action = input("> ")
 
-        action = " You " + action + ". "
-        action = first_to_second_person(action)
+        if action = "":
+            action = None
+        else:
+            action = " You " + action + ". "
+            action = first_to_second_person(action)
         result = story_manager.act(action)
         console_print("\n\n" + action + result)
 

story/story_manager.py

@@ -96,6 +96,8 @@ class StoryManager():
 class UnconstrainedStoryManager(StoryManager):
 
     def act(self, action_choice):
+        if action_choice is None:
+            action_choice = ""
         result = self.generate_result(action_choice)
         self.story.add_to_story(action_choice, result)
         return result