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

from Gradio_UI import GradioUI

# 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 
    Args:
        arg1: the first argument
        arg2: the second argument
    """
    return "What magic will you build ?"

@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 execute_python_code(code: str, timeout: int = 10) -> str:
    """Executes Python code and returns the output.
    
    Args:
        code: The Python code to execute as a string
        timeout: Maximum execution time in seconds (default: 10)
    """
    import sys
    import io
    from contextlib import redirect_stdout, redirect_stderr
    import traceback
    import signal

    # Create string buffers for capturing output
    stdout_buffer = io.StringIO()
    stderr_buffer = io.StringIO()
    
    # Set up timeout handler
    def timeout_handler(signum, frame):
        raise TimeoutError(f"Code execution timed out after {timeout} seconds")
    
    # Store original handler to restore later
    original_handler = signal.signal(signal.SIGALRM, timeout_handler)
    
    result = None
    try:
        # Set alarm
        signal.alarm(timeout)
        
        # Create a restricted globals dictionary
        restricted_globals = {
            "__builtins__": {
                name: __builtins__[name] for name in [
                    "abs", "all", "any", "bool", "chr", "dict", "dir", "divmod", 
                    "enumerate", "filter", "float", "format", "frozenset", "hash", 
                    "hex", "int", "isinstance", "issubclass", "len", "list", "map", 
                    "max", "min", "oct", "ord", "pow", "print", "range", "repr", 
                    "reversed", "round", "set", "slice", "sorted", "str", "sum", 
                    "tuple", "type", "zip"
                ]
            }
        }
        
        # Add some safe modules
        import math
        import random
        import datetime
        import json
        import re
        
        restricted_globals["math"] = math
        restricted_globals["random"] = random
        restricted_globals["datetime"] = datetime
        restricted_globals["json"] = json
        restricted_globals["re"] = re
        
        # Execute the code with redirected output
        with redirect_stdout(stdout_buffer), redirect_stderr(stderr_buffer):
            # Execute code in a restricted environment
            exec_globals = {}
            exec(code, restricted_globals, exec_globals)
            
            # Check for a return value if the last statement is an expression
            lines = code.strip().split('\n')
            if lines and not (lines[-1].strip().startswith(('def ', 'class ', 'if ', 'for ', 'while ', 'try:', 'with '))) and \
               not any(op in lines[-1] for op in ['=', '+=', '-=', '*=', '/=', '%=']):
                try:
                    result = eval(lines[-1], restricted_globals, exec_globals)
                except:
                    pass
        
        # Cancel the alarm
        signal.alarm(0)
        
        # Collect output
        stdout_output = stdout_buffer.getvalue()
        stderr_output = stderr_buffer.getvalue()
        
        # Format the response
        response = ""
        if stdout_output:
            response += f"Standard Output:\n{stdout_output}\n"
        if stderr_output:
            response += f"Standard Error:\n{stderr_output}\n"
        if result is not None:
            response += f"Result: {result}\n"
            
        return response.strip() or "Code executed successfully with no output."
        
    except TimeoutError as e:
        return f"Error: {str(e)}"
    except Exception as e:
        # Get full traceback
        err_traceback = traceback.format_exc()
        return f"Error executing code:\n{err_traceback}"
    finally:
        # Reset the alarm and restore original handler
        signal.alarm(0)
        signal.signal(signal.SIGALRM, original_handler)
        
final_answer = FinalAnswerTool()

# 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',# it is possible that this model may be overloaded
model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud',
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=[get_current_time_in_timezone, final_answer, execute_python_code], ## 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()