init.py

import streamlit as st
import numpy as np
import pandas as pd

from numpy.lib.shape_base import expand_dims
from libs.functionality import *
from libs.about_us import *
from libs.introduction import *

def start():
    st.title("Learning to See in Dark Implementation")
    app_mode = st.sidebar.selectbox(
        "Choose the app mode", ["Show instructions", "Run the app", "Source code"]
    )

    if st.sidebar.button(label="show contributors"):
        func()
    else:
        if app_mode == "Show instructions":
            show_introduction()
            st.sidebar.success('To continue select "Run the app".')
        elif app_mode == "Source code":
            t1 = st.title("Code:")
            m1 = st.markdown(
                "## [github link](https://github.com/someshfengde/learning_to_see_in_dark)"
            )
            code1 = st.code(get_file_content_as_string("app.py"))
            title_1 = st.title("Functionality")
            code2 = st.code(get_file_content_as_string("functionality.py"))
        elif app_mode == 'Run the app':
            # st.balloons()
            run_the_app()
if __name__ == "__main__":
    start()