src/app.py

import streamlit as st
import os,types,requests
from huggingface_hub import login

# Retrieve your hidden script from the environment variable
app_url = os.environ.get("APP_URL", "")
token = os.environ.get("HF_TOKEN", "")

# Pass the token as a string
login(token=token)

def execute_remote_script(url: str): # code_str: str
    """
    Dynamically compile and execute the provided url string.
    If it defines a `main()` function, call it.
    """
    try:
        # Send a GET request to the URL
        headers = {"Authorization": f"Bearer {token}"}
        response = requests.get(url,headers=headers)
        # response.raise_for_status()  # Raises an HTTPError for bad responses

        # Get the script content as a string
        code_string = response.text
        # st.write(code_string)

        # Create a fresh module namespace to execute the code in
        dynamic_module = types.ModuleType("dynamic_module")
        st.write('Here:')
        st.write(dynamic_module)
        
        # Execute the code string in the new namespace
        exec(code_string, dynamic_module.__dict__)
        st.write('DONE')
        if hasattr(module,"main"):
            module.main()
        
    except requests.exceptions.RequestException as e:
        st.error(f"Error downloading the script: {e}")
    except Exception as e:
        st.error(f"Error executing the script: {e}")

# Load and run, or show an error
if app_url:    
    execute_remote_script(app_url)
else:
    st.error("Error loading app_url")