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by kiesel3rde 1773 days ago
Ok. Plotly: if i read the docs correctly, Plotly converts python scripts to a web application and they can host the app for you. Lona is meant to be self hosted and runs the python directly. Streamlit: Streamlit provides an editor to create your app, and infrastructure to run it. Lona has no editor and runs on your infrastructure. I would say Lona has the smallest software stack of the three, and you have full control over it
4 comments
Atlas-Marbles 1773 days ago
>Streamlit provides an editor to create your app

That's actually not the case. Streamlit is an open-source python package to generate frontend components for data-focused apps. You can host it on whatever infrastructure you like.

It's essentially for data engineers who don't even want to think about front end. Streamlit's narrow use-case doesn't seem to compete with Lona, which seems more general and flexible.

See the code examples here: https://github.com/streamlit/streamlit

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nicolaskruchten 1773 days ago
Dash (by Plotly) doesn't "convert" Python scripts, no, it works in a similar way to Lona: there is a Javascript frontend that communicates with the Python backend and the Python functions (callbacks) are executed directly.
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JPKab 1773 days ago
Both Plotly and Streamlit can be self-hosted. I've hosted prod apps in both frameworks. However, I understand why you thought that, because both companies seek to monetize their open source software via offering ultra-simple, semi-automated hosting for apps built in their respective frameworks. Plotly Dash is just a Flask app with a whole lot of other things wired in and a sophisticated front-end operating on a DAG structure provided by the server that is dynamically generated from the Python code. It's got it's issues, but it's interesting nonetheless.

I'm not trying to be some pedantic know-it-all or anything, I'm just correcting you on this because I'm very curious on the deltas between your very interesting looking framework and those. I love these kinds of projects and I'm excited to take a deeper look at yours once I'm done with my current sprint. Very glad to see you made awesome use of your time during the lockdowns.

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kiesel3rde 1773 days ago
@JPKab: Ah ok! Thanks for making this clear
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