Yielding Python Generator from JS in PyWebView: A Dummy Example

index.js

async *genLogs() {
    while (true) {
        yield await window.pywebview.api.gen_logs();
    }
}

const g = genLogs();

(await g.next()).value     // 1
(await g.next()).value     // 2

js_api.py

class JsApi:
    """
    `webview.create_window(js_api=JsApi())`
    """
    def gen_logs(self, _):
        def gen():
            x = 1
            while True:
                yield x
                x += 1

        if not hasattr(self, 'g'):
            self.g = gen()

        return next(self.g)