Update app.py

app.py

@@ -1,4 +1,4 @@
-import os, threading
+import os
 import gradio as gr
 from agents.crew import run_crew
 from utils.utils import get_questions
@@ -36,26 +36,18 @@ def ask(question, openai_api_key, gemini_api_key, anthropic_api_key, file_name =
     if file_name:
         file_name = f"data/{file_name}"
     
-    lock = threading.Lock()
-
-    with lock:
-        answer = ""
-
-        try:
-            os.environ["OPENAI_API_KEY"] = openai_api_key
-            os.environ["GEMINI_API_KEY"] = gemini_api_key
-            os.environ["MODEL_API_KEY"] = anthropic_api_key
-            
-            answer = run_crew(question, file_name)
-        except Exception as e:
-            gr.Warning(e)
-            return ""
-        finally:
-            del os.environ["OPENAI_API_KEY"]
-            del os.environ["GEMINI_API_KEY"]
-            del os.environ["MODEL_API_KEY"]
+    try:
+        os.environ["OPENAI_API_KEY"] = openai_api_key
+        os.environ["GEMINI_API_KEY"] = gemini_api_key
+        os.environ["MODEL_API_KEY"] = anthropic_api_key
         
-        return answer
+        return run_crew(question, file_name)
+    except Exception as e:
+        gr.Warning(str(e))
+        return ""
+    finally:
+        for key in ["OPENAI_API_KEY", "GEMINI_API_KEY", "MODEL_API_KEY"]:
+            os.environ.pop(key, None)
 
 gr.close_all()