Update app.py

app.py

@@ -5,20 +5,16 @@ from openai import OpenAI
 import gradio as gr
 
 # ——— Configure your OpenRouter key ———
-api_key=os.getenv("OPENROUTER_API_KEY")
-# Assuming OPENROUTER_API_KEY is already set in the environment or Colab secrets
-
-# Retrieve the API key from Colab secrets
-
+OPENROUTER_API_KEY = os.getenv("OPENROUTER_API_KEY")
 
 # Check if the API key was retrieved
 if not OPENROUTER_API_KEY:
-    print("Error: OPENROUTER_API_KEY not found in Colab secrets.")
-    print("Please add your API key to Colab secrets by clicking on the key icon in the left panel and naming it OPENROUTER_API_KEY.")
+    print("Error: OPENROUTER_API_KEY not found in environment.")
+    print("Please set your API key in the environment as 'OPENROUTER_API_KEY'.")
 else:
     client = OpenAI(
         base_url="https://openrouter.ai/api/v1",
-        api_key=os.getenv("OPENROUTER_API_KEY"),
+        api_key=OPENROUTER_API_KEY,
     )
 
     def openrouter_chat(user_message, history):