Update app.py

app.py

@@ -24,6 +24,13 @@ def load_openai_key():
         st.error(f"Error loading OpenAI API key from HuggingFace secrets: {str(e)}")
         return None
 
+def initialize_openai_client():
+    """Initialize OpenAI client with API key"""
+    api_key = load_openai_key()
+    if api_key:
+        return OpenAI(api_key=api_key)
+    return None
+
 def detect_chart_type(client, image_data):
     """Detect chart type using OpenAI's GPT-4 vision model"""
     try: