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Show HN: Marimo – an open-source reactive notebook for Python

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Re: Show HN: Marimo – an open-source reactive notebook for Python

#61

Post by mind-blight »

mscolnick wrote: post #36
simonw wrote: post #28

This is amazing. I'm a big user of both Jupyter notebooks and Observable notebooks ( https://observablehq.com/ ) and the thing I miss most from Observable when I'm using Jupyter is the lack of cell reactivity. You've solved that incredibly well! I also really like that the Marimo file format is just Python. Here's an example saved file from playing around with the intro: https://gist.github.com/simonw/e6e6e4b45d1bed9…

Myles here (other core contributor) - We are thrilled to see you have such a strong positive reaction. It means a lot coming from you - I initially learned web development using Django and landed my first contracting gig with Django. I drifted away from writing Python and towards Typescript - but marimo has brought me back to writing Python.

Congrats Myles! Super excited that you all have finally open sourced! I'm gonna start moving my Jupyter notebooks over to this asap. I love that it's all just .py files.

Have you had anyone use Marimo to write production web app code? I've been doing a lot of AI experiments for the new venture, and it's been a pain to have to switch back and forth between .ipynb files and regular py files

Re: Show HN: Marimo – an open-source reactive notebook for Python

#63

Post by akshayka »

paddy_m wrote: post #54

Very exciting! I took a quick look and I have a couple of questions. 1. Can you describe your interactive widget story? I see that you integrated altair, and there is some custom written react code around it [0] [1]. I'd be interested in porting my table widget to your platform at some point. 2. How much, if any does this depend on the jupyter ecosystem? 3. How does this interact with the jupyter ecosystem? [0] https…

1. We don't have a public plugin API yet, but we will in the future. Our (internal) plugins are represented as custom elements: Python writes the HTML (e.g., `` and the frontend instantiates it. In the meantime, maybe we can help you port your table widget and make it a marimo plugin. You can reach us in our Discord (https://discord.gg/JE7nhX6mD8) or at Github.

2. marimo was built from scratch, it doesn't depend on Jupyter or IPython at all.

3. marimo doesn't interact with the Jupyter ecosystem. We have brainstormed the possibility of a compatibility layer that allows Jupyter widgets to be used as marimo plugins, but right now that's just an idea.

Re: Show HN: Marimo – an open-source reactive notebook for Python

#65

Post by mscolnick »

mind-blight wrote: post #61
mscolnick wrote: post #36

Earlier quoted context omitted.

Myles here (other core contributor) - We are thrilled to see you have such a strong positive reaction. It means a lot coming from you - I initially learned web development using Django and landed my first contracting gig with Django. I drifted away from writing Python and towards Typescript - but marimo has brought me back to writing Python.

Congrats Myles! Super excited that you all have finally open sourced! I'm gonna start moving my Jupyter notebooks over to this asap. I love that it's all just .py files. Have you had anyone use Marimo to write production web app code? I've been doing a lot of AI experiments for the new venture, and it's been a pain to have to switch back and forth between .ipynb files and regular py files

People have used marimo for production web apps. They won't get you as far as writing HTML/JS. But great for internal tools or external showcases, tutorials, interactive blogs, etc.

Our friends at SLAC use marimo for their internal exploration experiments and publishing interactive apps. He is an example: https://marimo.io/@public/signal-decomposition

Re: Show HN: Marimo – an open-source reactive notebook for Python

#66

Post by bmitc »

aidos wrote: post #20
akshayka wrote: post #10

Earlier quoted context omitted.

Yes, the second half of reproducibility is for sure packages. A solution for reproducible environments is on our roadmap ( https://marimo-team.notion.site/The-marimo-roadmap-e5460b9f2... ), but we haven't quite figured it out yet. It's a bit challenging because Python has so many different solutions for package management. If you have any ideas we'd love to hear them.

People always complain about pip and python packaging but it’s never been an issue for me. I create a requirements.base.txt that has the versions of things I want installed. I then: pip freeze -r requirements.base.txt > requirements.txt Install is then simply: pip install -r requirements.txt Updating / installing something new is a matter of adding to the base file and then refreezing.

Poetry handles all of this properly.

Re: Show HN: Marimo – an open-source reactive notebook for Python

#67

Post by simonw »

LoulouMonkey wrote: post #58
simonw wrote: post #28

This is amazing. I'm a big user of both Jupyter notebooks and Observable notebooks ( https://observablehq.com/ ) and the thing I miss most from Observable when I'm using Jupyter is the lack of cell reactivity. You've solved that incredibly well! I also really like that the Marimo file format is just Python. Here's an example saved file from playing around with the intro: https://gist.github.com/simonw/e6e6e4b45d1bed9…

Hi Simon, slightly unrelated question. I'm a big fan of your work, and as I've learnt a lot from reading your blog posts over the years, I'd be curious to know a bit more about typical use cases for wanting to work with Observable notebooks. The only reason why I'm using A JavaScript notebook tool (Starboard.gg) is to be able to access cool visualisation packages like Anychart or Highcharts. Given the hype around Obs…

I primarily use Observable to build interactive tools, as opposed to Jupyter which I use more for exploratory development and analysis.

Here are some of my Observable notebooks which illustrate the kind of things I use it for:

https://observablehq.com/@simonw/search-for-faucets-with-cli...

https://observablehq.com/@simonw/openai-clip-in-a-browser

Those are both from https://simonwillison.net/2023/Oct/23/embeddings/

https://observablehq.com/@simonw/gpt4all-models provides a readable version of JSON file on GitHub

https://observablehq.com/@simonw/blog-to-newsletter is the tool I used to assemble my newsletter

A killer feature of Observable notebooks for me is that they provide the shortest possible route from having an idea to having a public URL with a tool that I can bookmark and use later.

Re: Show HN: Marimo – an open-source reactive notebook for Python

#68

Post by bitsrat »

I read in a comment that Marimo is an alternate to Jupyter. Does it not depend on Jupyter Server or ipykernel ? Is it a replacement for Jupyter lab ?

I am thinking of Jupyter as all the components in this diagram - https://docs.jupyter.org/en/latest/projects/architecture/con...

Sorry did not get to look into the codebase yet

Re: Show HN: Marimo – an open-source reactive notebook for Python

#69

Post by chris_nielsen »

I love this, but Im using DataSpell from JetBrains at the moment because it has 2 killer features:

    1. Variable viewer so I can see the current value of all variables in scope. 
    
    2. Interactive debugger
Maybe the variable viewer is only important because Jupyter notebooks don’t track and rerun dependencies? So I wouldn’t need it with Marimo. But the interactive debugger is priceless.

Any plan to add debugging?

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