02-06-22-stmulitpage-mp4.py

02-06-22-stmulitpage-mp4.py

    message = """
            __Select an application from the list below__
           """

    import json
    import streamlit as st
    import importlib
    import stlib    # default library name for apps
    from stlib import libContents

    st.set_page_config(layout = "wide") # optional

    st.header("National Statistics")

    # Global arrays for holding the app names, modules
    # and descriptions of the apps
    moduleNames = libContents.packages()
    descriptions = [] 
    modules = []

    # Find the apps and import them
    for modname in moduleNames:
        m = importlib.import_module('.'+modname,'stlib')
        modules.append(m)
        # If the module has a description attribute use that in the 
        # select box otherwise use the module name
        try:
            descriptions.append(m.description)
        except:
            descriptions.append(modname)

    # Define a function to display the app
    # descriptions instead of the module names
    # in the selctbox, below
    def format_func(name):
        return descriptions[moduleNames.index(name)]


    # Display the sidebar with a menu of apps
    with st.sidebar:
        st.markdown(message)
        page = st.selectbox('Select:',moduleNames, format_func=format_func) 

    # Run the chosen app
    modules[moduleNames.index(page)].run()