How to make Widgets "appear" only after previous ones have been used?

Using Streamlit
1

Hey Everyone! A beginner here, first post…

I am trying to run a series of functions, that recieve some values/parameters through Streamlit Widgets. The functions are sequentually dependent on one another, i.e. 2nd function depends on values from 1st function and so on.

When I deploy the script on Streamlit, it is running all the functions and shows me KeyError messages (which go away once the functions start to get values through the Widgets).

Is there a way to make Streamlit run them in sequence, only after each one has been used?

I have tried using Buttons, and starting the following function only after a button has been pressed, but it looks and feels very clumsy.

Any help will be greatly appreciated!

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