Project structure for medium and large apps FULL EXAMPLE (UI AND LOGIC SPLITTED)

My app will be running on a local server.

Features:

  • SQL connection
    Search in database, print results.
  • image/OCR-textrecognition
  • MSAL integration (Microsoft Login)
    *live camera

For a user it should not be possible to go a step back.
It should present a click through tutorial/instructions
So in background there are many pages or categories wich will be presented the user.

But in forground there is only one page. I want to split the function of the app in many py files. So one py file for Commands, each page is a function bundle with separeted py files.

Each page can execute the commands from the commands.py.
Also I think I need session state, because the input data should work for more pages than one.

current structure:
src/images
src/pages/home.py (UI Widgets with commands from imported commands.py, start other pages)
src/pages/ (many other pages).py
src/global_commands.py (widget commands for start.py and pages)
Start.py (start streamlit and home page, manage st.session_state )

So UI is separeted from Logic commands
There are differnt UI-pages but similar logic.

Has any one a full example with a more complex structure than one or two py files.

Many Thanks.

I have circular import problems.
live camera not loading

ther has to be a structure, where I can design the UI in py and the logic at another py.

Or is streamlit only able to use the logic an ui at the same file

__

streamlit 1.29 and python 3.11

other streamlit main components: gridlayout to mange widgets.

maybe these components: :diamond_shape_with_a_dot_inside: Grid Layout - streamlit-extras (arnaudmiribel.github.io)

are not full functional.

Is threre a similar grid-layout, which i can use.
Or should i manage the widgets with columns from streamlit original???

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