Update app.py

app.py

@@ -1,62 +1,117 @@
-from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
+from smolagents import CodeAgent, HfApiModel, DuckDuckGoSearchTool, VisitWebpageTool, load_tool, tool
 import datetime
 import requests
 import pytz
 import yaml
 from tools.final_answer import FinalAnswerTool
-
 from Gradio_UI import GradioUI
+import xml.etree.ElementTree as ET
 
-# Below is an example of a tool that does nothing. Amaze us with your creativity !
 @tool
-def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
-    #Keep this format for the description / args / args description but feel free to modify the tool
-    """A tool that does nothing yet 
+def pull_ecb_eur_usd_rate(requested_date: str = None) -> str:
+    """
+    A tool that fetches the EUR-to-USD exchange rate from the European Central Bank for today.
+    
     Args:
-        arg1: the first argument
-        arg2: the second argument
+        requested_date: (Optional) A string in "YYYY-MM-DD" format. If provided and it is not equal to today's date,
+                        the function returns an error.
+                        
+    Returns:
+        A string indicating the exchange rate as of the ECB data's date, or an error message if:
+          - the requested date is not today, or
+          - the ECB data is not updated for today.
     """
-    return "What magic will you build ?"
+    try:
+        # Determine today's date in the ECB's (Central European) timezone.
+        brussels_tz = pytz.timezone("Europe/Brussels")
+        today = datetime.datetime.now(brussels_tz).date()
+
+        # If a date is provided, check that it matches today's date.
+        if requested_date:
+            try:
+                req_date = datetime.datetime.strptime(requested_date, "%Y-%m-%d").date()
+            except Exception:
+                return f"Error: The provided date '{requested_date}' is not in the correct format (YYYY-MM-DD)."
+            if req_date != today:
+                return f"Error: The requested date {req_date} is not available. Only today's data ({today}) is supported."
+
+        # Fetch the ECB daily XML data.
+        url = "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml"
+        response = requests.get(url)
+        if response.status_code != 200:
+            return f"Error: Received status code {response.status_code} from ECB."
+
+        xml_content = response.content
+        tree = ET.ElementTree(ET.fromstring(xml_content))
+        root = tree.getroot()
+
+        # Define namespaces used in the ECB XML.
+        ns = {
+            'gesmes': 'http://www.gesmes.org/xml/2002-08-01',
+            'def': 'http://www.ecb.int/vocabulary/2002-08-01/eurofxref'
+        }
+
+        # Locate the Cube element with the time attribute.
+        time_cube = root.find('.//def:Cube/def:Cube', ns)
+        if time_cube is not None:
+            data_date = time_cube.get('time')
+            # If ECB's data date is not today, return an error.
+            if data_date != str(today):
+                return f"Error: ECB data is not updated for today. Latest available data is for {data_date}."
+            
+            # Find the Cube element for USD.
+            usd_cube = time_cube.find("def:Cube[@currency='USD']", ns)
+            if usd_cube is not None:
+                rate = usd_cube.get('rate')
+                return f"As of {data_date}, EUR 1 is equivalent to {rate} USD."
+        
+        return "Error: USD rate not found in ECB data."
+    except Exception as e:
+        return f"Error fetching ECB rate: {str(e)}"
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str:
-    """A tool that fetches the current local time in a specified timezone.
+    """
+    A tool that fetches the current local time in a specified timezone.
+    
     Args:
         timezone: A string representing a valid timezone (e.g., 'America/New_York').
+    
+    Returns:
+        A string with the current local time in the specified timezone.
     """
     try:
-        # Create timezone object
         tz = pytz.timezone(timezone)
-        # Get current time in that timezone
         local_time = datetime.datetime.now(tz).strftime("%Y-%m-%d %H:%M:%S")
         return f"The current local time in {timezone} is: {local_time}"
     except Exception as e:
         return f"Error fetching time for timezone '{timezone}': {str(e)}"
 
-
+# Tools for final answer and additional capabilities.
 final_answer = FinalAnswerTool()
+search_result = DuckDuckGoSearchTool()
+visit_webpage = VisitWebpageTool()
 
-# If the agent does not answer, the model is overloaded, please use another model or the following Hugging Face Endpoint that also contains qwen2.5 coder:
-# model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud' 
-
+# Initialize the model.
 model = HfApiModel(
-max_tokens=2096,
-temperature=0.5,
-model_id='Qwen/Qwen2.5-Coder-32B-Instruct',# it is possible that this model may be overloaded
-custom_role_conversions=None,
+    max_tokens=2096,
+    temperature=0.5,
+    model_id='Qwen/Qwen2.5-Coder-32B-Instruct',
+    custom_role_conversions=None,
 )
 
-
-# Import tool from Hub
+# Import image generation tool from Hub (if needed).
 image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)
 
+# Load prompt templates from the YAML file.
 with open("prompts.yaml", 'r') as stream:
     prompt_templates = yaml.safe_load(stream)
     
+# Create the CodeAgent and register the tools (including the updated ECB rate tool).
 agent = CodeAgent(
     model=model,
-    tools=[final_answer], ## add your tools here (don't remove final answer)
-    max_steps=6,
+    tools=[final_answer, get_current_time_in_timezone, pull_ecb_eur_usd_rate],
+    max_steps=10,
     verbosity_level=1,
     grammar=None,
     planning_interval=None,
@@ -65,5 +120,5 @@ agent = CodeAgent(
     prompt_templates=prompt_templates
 )
 
-
-GradioUI(agent).launch()
+# Launch the Gradio UI for interacting with the agent.
+GradioUI(agent).launch()