[donkeybeer]

Platform compatibility is much easier in web compared to python or anything else native. You only have the browser to worry about and nothing else, and the variation between browsers is there but much less than the variations between cpu architectures, oses, languages etc in native apps. The variation between the two biggest ones, firefox and chrome is even narrower yet we still get "only works in chrome" or worse bundling an entire copy of a very specific version of chrome along with your app in for example Electron.