Edit: Streamlit 0.84.0 has officially introduced session state. Go check it out: Session State for Streamlit :balloon: Hello there :wave: For a project I needed to build multi-page app with a settings page. As I’ve seen this topic requesting the feature, I decided to share the solution I came up w…

It’s a requirement to sync back the state at the end of each page refresh, so as to tell the session “keep these values when Streamlit reruns the page”. Otherwise they would be lost like all other values, as there’s not really a traditional main loop otherwise to keep track of state. In my posted e…

Nice work @okld with this Multi-page app with session states. Really helpful. I have some questions: 1.- Is there any way to make a file containing all data from the active SessionState ? 2.- Can you load that file in another session to reuse the same data ? Thank you! :herb:

Hi @an_pas , I’ve used dill library to save and load the states. To save: dill.dump(state._state[‘data’], filename) To load: state._state[‘data’] = dill.load(filename) I hope it helps you! Wilber

Hi @delbrison thanks for the answer. I understand the idea, but never worked with the dill library before, so I’m encountering some errors. I will leave all the procedure here, maybe it can help someone. I will use 2 buttons, for saving and loading the states. 1.- Saving button TypeError: file mu…

Thanks for this work around @okld . This saved my day.

I have a problem with this code as such that a programatically changed input value is not updated. In the excample code below the text_input widget is only updated to ‘xxx’ on the first run. After this, the text_input shows whatever is entered into the widget. The st.write(state.test) stills gives …

With the save states, you hash your data, but how can you hash this: UnhashableTypeError : Cannot hash object of type cx_Oracle.Connection , found in something.

Is there any way the data dictionary can be divided into values that can be cleared and values that one wants to persist through different states? @okld ? @andfanilo The page you mentioned does not exist anymore : -(

When you use an IDE debugger with this code, it can’t get a Session ID from the IDE itself, so you get this message: " session_id = get_report_ctx().session_id AttributeError: ‘NoneType’ object has no attribute ‘session_id’ " I understand why we get this error, but what is the solution? How d…

Multi-page app with session state

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RayJ February 18, 2022, 10:50pm 72

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Multi-page app with session state

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