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# test await expression
try:
import usys as sys
except ImportError:
import sys
if sys.implementation.name == 'micropython':
# uPy allows normal generators to be awaitables
coroutine = lambda f: f
else:
import types
coroutine = types.coroutine
@coroutine
def wait(value):
print('wait value:', value)
msg = yield 'message from wait({})'.format(value)
print('wait got back:', msg)
return 10
async def f():
x = await wait(1)**2
print('x =', x)
coro = f()
print('return from send:', coro.send(None))
try:
coro.send('message from main')
except StopIteration:
print('got StopIteration')
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