app.py

from smolagents import CodeAgent,DuckDuckGoSearchTool, HfApiModel,load_tool,tool
import datetime
import requests
import pytz
import yaml
import urllib.parse
from tools.final_answer import FinalAnswerTool

from Gradio_UI import GradioUI

@tool
def calculator(expression: str)-> str: # Returns a string result
    """
    A tool able to solve mathematical expressions using the mathjs.org API.
    
    Args:
        expression: A mathematical expression to solve (e.g., "1+2", "3*5").
        
    Returns:
        str: The result of the calculation if successful, or an error message if the request fails.
    """
    # URL-encode to ensure correct API interpretation
    encoded_expression = urllib.parse.quote(expression, safe="") 

    try:
        api_url = f"http://api.mathjs.org/v4/?expr={encoded_expression}"

        response = requests.get(api_url)

        if response.status_code == 200:
            return f"Result: {response.text}"
        else:
            return f"Error: {response.text}"
    except Exception as e:
        return f"Error: {str(e)}"

@tool
def get_current_time_in_timezone(timezone: str) -> str:
    """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').
    """
    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)}"


final_answer = FinalAnswerTool()
model = HfApiModel(
max_tokens=2096,
temperature=0.5,
# model_id='replace_with_your_inference_endpoint', # Replace with your inference endpoint
custom_role_conversions=None,
)


# Import tool from Hub
image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)

with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)
    
agent = CodeAgent(
    model=model,
    tools=[final_answer, calculator, get_current_time_in_timezone, image_generation_tool], ## add your tools here (don't remove final answer)
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates
)


GradioUI(agent).launch()