Create app.py

app.py

@@ -0,0 +1,159 @@
+import os
+import gradio as gr
+from smolagents import CodeAgent, DuckDuckGoSearchTool, InferenceClientModel, tool
+
+# ============================================
+# CUSTOM TOOLS FOR ALFRED
+# ============================================
+
+@tool
+def calculator(operation: str) -> str:
+    """
+    Performs basic math calculations.
+    
+    Args:
+        operation: A math expression like "2 + 2" or "10 * 5"
+    
+    Returns:
+        The result of the calculation as a string
+    """
+    try:
+        allowed_chars = set('0123456789+-*/(). ')
+        if all(c in allowed_chars for c in operation):
+            result = eval(operation)
+            return f"The result of {operation} is: {result}"
+        else:
+            return "Invalid operation. Please use only numbers and basic operators."
+    except Exception as e:
+        return f"Could not calculate. Error: {str(e)}"
+
+
+@tool
+def get_current_time() -> str:
+    """
+    Gets the current date and time in UTC.
+    
+    Returns:
+        The current date and time as a string
+    """
+    from datetime import datetime
+    now = datetime.utcnow()
+    return f"Current date and time (UTC): {now.strftime('%Y-%m-%d %H:%M:%S')}"
+
+
+@tool
+def get_weather_info(city: str) -> str:
+    """
+    Gets a simple weather description for a city (mock data for demo).
+    
+    Args:
+        city: The name of the city to get weather for
+    
+    Returns:
+        A weather description string
+    """
+    # This is mock data - in production you'd use a real weather API
+    import random
+    conditions = ["sunny", "partly cloudy", "cloudy", "rainy", "windy"]
+    temp = random.randint(15, 30)
+    condition = random.choice(conditions)
+    return f"Weather in {city}: {temp}°C, {condition}"
+
+
+# ============================================
+# MODEL SETUP - Using free-tier compatible model
+# ============================================
+
+model = InferenceClientModel(
+    model_id="Qwen/Qwen2.5-7B-Instruct",  # Smaller model that works on free tier
+    token=os.environ.get("HF_TOKEN"),
+)
+
+# ============================================
+# ALFRED AGENT SETUP
+# ============================================
+
+alfred = CodeAgent(
+    tools=[
+        DuckDuckGoSearchTool(),
+        calculator,
+        get_current_time,
+        get_weather_info,
+    ],
+    model=model,
+    max_steps=5,
+    verbosity_level=1,
+)
+
+# ============================================
+# CHAT FUNCTION
+# ============================================
+
+def chat_with_alfred(message, history):
+    """
+    Process user message and return Alfred's response.
+    """
+    if not message.strip():
+        return "Please ask me something. How may I assist you today?"
+    
+    try:
+        response = alfred.run(message)
+        return str(response)
+    except Exception as e:
+        error_msg = str(e)
+        # Provide helpful error messages
+        if "404" in error_msg or "not found" in error_msg.lower():
+            return "I'm having trouble connecting to my AI backend. Please check the HF_TOKEN and model availability."
+        elif "rate" in error_msg.lower() or "limit" in error_msg.lower():
+            return "I've hit a rate limit. Please wait a moment and try again."
+        else:
+            return f"I encountered an issue: {error_msg}"
+
+
+# ============================================
+# GRADIO INTERFACE
+# ============================================
+
+with gr.Blocks(title="Alfred - AI Butler Agent") as demo:
+    
+    gr.Markdown(
+        """
+        # 🎩 Alfred - Your AI Butler
+        
+        Good day! I am Alfred, your personal AI assistant. I am at your service.
+        
+        ### My Capabilities:
+        - 🔍 **Web Search** - I can search the internet for information
+        - 🧮 **Calculator** - I can perform mathematical calculations
+        - 🕐 **Current Time** - I can tell you the current time (UTC)
+        - 🌤️ **Weather** - I can provide weather information
+        
+        ---
+        """
+    )
+    
+    chatbot = gr.ChatInterface(
+        fn=chat_with_alfred,
+        examples=[
+            "What is artificial intelligence?",
+            "Calculate 25 * 4 + 10",
+            "What time is it now?",
+            "What's the weather in London?",
+            "Search for the latest news about AI",
+            "Calculate (100 + 50) * 2 / 5",
+        ],
+    )
+    
+    gr.Markdown(
+        """
+        ---
+        *Built with [smolagents](https://github.com/huggingface/smolagents) and Gradio | Unit 1 Project*
+        """
+    )
+
+# ============================================
+# LAUNCH APP
+# ============================================
+
+if __name__ == "__main__":
+    demo.launch()