40ad8f1666
This is consistent with the other 'micro' modules and allows implementing additional features in Python via e.g. micropython-lib's sys. Note this is a breaking change (not backwards compatible) for ports which do not enable weak links, as "import sys" must now be replaced with "import usys".
31 lines
640 B
Python
31 lines
640 B
Python
# test await expression
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try:
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import usys as sys
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except ImportError:
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import sys
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if sys.implementation.name == 'micropython':
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# uPy allows normal generators to be awaitables
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coroutine = lambda f: f
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else:
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import types
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coroutine = types.coroutine
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@coroutine
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def wait(value):
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print('wait value:', value)
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msg = yield 'message from wait({})'.format(value)
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print('wait got back:', msg)
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return 10
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async def f():
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x = await wait(1)**2
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print('x =', x)
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coro = f()
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print('return from send:', coro.send(None))
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try:
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coro.send('message from main')
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except StopIteration:
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print('got StopIteration')
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