#pyodide

[utopicwork]

Here's a quick look at what I'm working on with the editor. The CSS and JS for the editor specifically the line numbers are pulled entirely from the SAP. I used a very small library for this: tln

GitHub - MatheusAvellar/textarea-line-numbers: A simple script to add dynamic line numbers to a textarea

A simple script to add dynamic line numbers to a textarea - MatheusAvellar/textarea-line-numbers

Theres a lot going on here but in simple terms I've built a system to load all the requirements for a Python web app from one file and I'm building a website editor with it. Going forward there will be more to see visually but I wanted to show something.

[utopicwork]

So I'm going to need a better way to set up Python environments in Pyodide so I'm creating a utility to validate that all of the libraries in a requirements.txt can be loaded in Pyodide by checking if it's built in or for a pure Python whl on the packages Pypi. Then I'll create a utility to basically run pip install -r requirements.txt in Pyodide.

Also just realized that I can cache Python libraries to IndexedDB. Which could vastly speed up spinning up threads.

[utopicwork]

Was gonna apologize for not so much progress but I beat out zip and tar for our portable/Pyodide environment format using msgpack by a large margin, I'll run some more tests for proof after the move

[utopicwork]

A bit of proof that I got Pyodide to load off the esp32 server. So soon I'll write the adapter to get PierMesh running using the browser as a processing environment

I use the Pyodide example below the cut but point to the local server instead

[utopicwork]

If anyone has experience with web workers I'd appreciate if you could take a look at this issue I'm having:

ID issue in web worker example · Issue #5317 · pyodide/pyodide

🐛 Bug When I try to run a portion of the webworker example code I get an error that the id has not been initialized. If I remove the section

I think this is something obvious about the webworker context not having the id variable but I'm not quite sure.

[utopicwork]

Okay so now we can package whls for offline/cached package loading by using our .penv format. The last bit was loading whls from the Emscripten file system which I found there is direct support for by using emfs:[path to your whl] once the whl is in the file system. I was having difficulties with the filename but I got help in record time with that:

Can't Load WHLs From EMFS · Issue #5299 · pyodide/pyodide

🐛 Bug When trying to load a WHL from the emscripten fs I get an " Invalid wheel filename: wrong number of parts" error. To Reproduce Load wh

tldr: Its just that micropip is picky about whl filenames

[utopicwork]

A trick I've developed for getting files out of Pyodide is converting the file into a dataurl in Python, writing that to a text file, then reading that out with the built in Pyodide file reading functionality and using that however, for a media file this usually means assigning a src to that dataurl and for others this could just mean triggering a download

[arielc-us]