I'm writing a Python Flask-based proxy using the playwright library. I've got code that works, but I'd like to make it faster. Here's what I have: @app.route('/fetch/') def fetch_url(): url = request.args.get('url') return fetch(url) def fetch (url): print("Starting") p = sync_playwright().start() browser = p.firefox.launch() page = browser.new_page() page.goto(url) page.wait_for_url(url) body = page.content() print(page.title()) page.close() return body I would like to only incur the cost of: p = sync_playwright().start() browser = p.firefox.launch() during start-up and simply reuse the p or browser objects for each subsequent request. However, when I move those lines to the top of my program, I get this error message when I send a request to my proxy: greenlet.error: Cannot switch to a different thread Current: <greenlet.greenlet object at 0x79b0d4b22f80 (otid=0x79b0d4b02e20) current active started main> Expected: <greenlet.greenlet object at 0x79b0d4fcbb80 (otid=0x79b0d57e9d70) suspended active started main> Any pointers to what I need to do would be MOST welcome. Mike. Continue reading...
