Update app.py

app.py

@@ -14,11 +14,11 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 class BasicAgent:
     def __init__(self):
         self.agent = create_agent()
-        self.question_dict = dict()
+        self.question_dict = {}
         print("BasicAgent initialized.")
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")
-        if self.question_dict[question]:
+        if question in self.question_dict:
             return self.question_dict[question]
         fixed_answer = self.agent.run(question)
         self.question_dict[question] = fixed_answer