I build lots of little python apps - I like web app uis, I like sanic as a backend because I'm mostly async these days... but I also want it to feel like a native app - ie its own dedicated window, the App closes when I close the window - and when I open another web page it doesn't join that page. I found pywebview.. and it seems perfect - and in fact it is - if I make a little runner that starts up my separate sanic python program with sh python blah.py - it works great. However - this all falls down if I try to put them in the same program. Sanic seems to only work if it's the main thread - if you try to start it with asyncio or something it just has all sorts of random issues - the same applies to pywebview. This gets worse - because in the sort of Apps I'm doing I typically am displaying some status or something, and have some polling going on - so I have other thread or threads going on watching things - that I want want then send the status of to the UI. Whatever I try - I just cannot get them working reliably together - ie pywebview, sanic, and multiple polling threads. And the problems are many and numerous, depending what I try - either sanic doesn't respond, or pywebview doesn't respond, none of them shut down properly, things line up, I get errors about event loops and the like. I get crashes in one of the threads when I try to exit... I just can't figure it out. Can anyone explain exactly how to do it with complete reliability? Ie have a pywebview talking to a sanic server which is being fed information from various background polling threads information that then gets sent to the ui via web sockets It seems like it should be really common and simple Continue reading...
