app.py

from smolagents import CodeAgent, DuckDuckGoSearchTool, HfApiModel, load_tool, tool
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool
import os
from dotenv import load_dotenv

from Gradio_UI import GradioUI


# Below is an example of a tool that does nothing. Amaze us with your creativity !
@tool
def calculate_math_expression(
    expression: str,
) -> str:  # it's important to specify the return type
    """A tool that evaluates mathematical expressions using Python.
    Args:
        expression: A string containing a mathematical expression (e.g., '2 + 2', '5 * 10', '(3 + 4) * 2')
    """
    try:
        # Using eval with restricted globals to safely evaluate mathematical expressions
        # This approach allows basic math operations while preventing code execution
        allowed_names = {
            "abs": abs,
            "max": max,
            "min": min,
            "pow": pow,
            "round": round,
            "sum": sum,
            "int": int,
            "float": float,
        }

        # Add all math functions
        import math

        for name in dir(math):
            if not name.startswith("_"):
                allowed_names[name] = getattr(math, name)

        # Evaluate the expression with restricted globals
        result = eval(expression, {"__builtins__": {}}, allowed_names)
        return f"Result: {result}"
    except Exception as e:
        return f"Error evaluating expression: {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)}"


@tool
def get_latest_rss_posts(url: str = "https://suho.dev/rss.xml", count: int = 5) -> str:
    """A tool that fetches the latest posts from an RSS feed.
    Args:
        url: The URL of the RSS feed (default: https://suho.dev/rss.xml)
        count: The number of latest posts to return (default: 5)
    """
    try:
        import feedparser
        import html

        # Parse the RSS feed
        feed = feedparser.parse(url)

        if not feed.entries:
            return f"No entries found in the RSS feed at {url}"

        # Limit the number of entries to the requested count
        entries = feed.entries[: min(count, len(feed.entries))]

        # Format the results
        result = f"Latest {len(entries)} posts from {feed.feed.title if 'title' in feed.feed else url}:\n\n"

        for i, entry in enumerate(entries, 1):
            title = (
                html.unescape(entry.title) if hasattr(entry, "title") else "No title"
            )
            published = entry.get("published", entry.get("updated", "No date"))
            link = entry.get("link", "No link")

            result += f"{i}. {title}\n"
            result += f"   Published: {published}\n"
            result += f"   Link: {link}\n\n"

        return result
    except Exception as e:
        return f"Error fetching RSS feed from {url}: {str(e)}"


final_answer = FinalAnswerTool()

load_dotenv()
token = os.getenv("HF_TOKEN") or os.environ["HF_TOKEN"]

# 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'

model = HfApiModel(
    max_tokens=2096,
    temperature=0.5,
    model_id="Qwen/Qwen2.5-Coder-32B-Instruct",
    custom_role_conversions=None,
    token=token,
)

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

with open("prompts.yaml", "r") as stream:
    prompt_templates = yaml.safe_load(stream)

agent = CodeAgent(
    model=model,
    tools=[
        image_generation_tool,
        get_current_time_in_timezone,
        calculate_math_expression,
        DuckDuckGoSearchTool(),
        get_latest_rss_posts,
        final_answer,
    ],  ## 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()