How can I periodically execute a function with asyncio?

For Python versions below 3.5: import asyncio @asyncio.coroutine def periodic(): while True: print(‘periodic’) yield from asyncio.sleep(1) def stop(): task.cancel() loop = asyncio.get_event_loop() loop.call_later(5, stop) task = loop.create_task(periodic()) try: loop.run_until_complete(task) except asyncio.CancelledError: pass For Python 3.5 and above: import asyncio async def periodic(): while True: print(‘periodic’) await asyncio.sleep(1) def stop(): task.cancel() loop = asyncio.get_event_loop() loop.call_later(5, stop) … Read more

Is JSON Hijacking still an issue in modern browsers?

No, it is no longer possible to capture values passed to the [] or {} constructors in Firefox 21, Chrome 27, or IE 10. Here’s a little test page, based on the main attacks described in http://www.thespanner.co.uk/2011/05/30/json-hijacking/: (http://jsfiddle.net/ph3Uv/2/) var capture = function() { var ta = document.querySelector(‘textarea’) ta.innerHTML = ”; ta.appendChild(document.createTextNode(“Captured: “+JSON.stringify(arguments))); return arguments; } … Read more

When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]

“Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design”. If you are building something that is similar to a e-commerce site, then you should probably go with Django. It will get your work done quick. You dont have to worry about too many technology choices. It provides everything thing … Read more

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