Update app.py

app.py

@@ -57,8 +57,11 @@ def analyze_transaction_with_ai(transaction_data, suspicious_transactions):
         3. Recommended next steps for investigation
         """
         
+        # Create an OpenAI client with the API key
+        client = openai.OpenAI(api_key=openai.api_key)
+        
         # Call OpenAI API
-        response = openai.chat.completions.create(
+        response = client.chat.completions.create(
             model="gpt-3.5-turbo",
             messages=[
                 {"role": "system", "content": "You are a fraud detection expert helping analyze suspicious financial transactions."},