684f3be000
In debug mode, BaseEventLoop._run_once() now sets the BaseEventLoop._current_handle attribute to the handle currently executed. In release mode or when no handle is executed, the attribute is None. BaseEventLoop.default_exception_handler() displays the traceback of the current handle if available.
19 lines
380 B
Python
19 lines
380 B
Python
"""Print 'Hello World' every two seconds, using a coroutine."""
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import asyncio
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@asyncio.coroutine
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def greet_every_two_seconds():
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while True:
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print('Hello World')
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yield from asyncio.sleep(2)
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if __name__ == '__main__':
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loop = asyncio.get_event_loop()
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try:
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loop.run_until_complete(greet_every_two_seconds())
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finally:
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loop.close()
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