module/__selectpage__.py

import streamlit as st
from streamlit_extras.switch_page_button import switch_page 
import os

# pages = ["Overall"]

# files = os.listdir('.\pages')
# for name in files:
#     name = name.split()[1].replace('.py', '').replace('_', ' ')
#     pages.append(name)

pages = [
    "Overall", 
    "Category", "Genre", "DLC Counts", "Price", "Age Restriction", 
    "Settings", "OS", "Publisher", "Developer", 
]

def st_page_selectbox(current_page):
    current_index = pages.index(current_page)
    selected_page = st.selectbox("Select a category", pages, index=current_index)
    if selected_page != current_page:
        switch_page(selected_page)