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# test basic async for execution
# example taken from PEP0492
class AsyncIteratorWrapper:
def __init__(self, obj):
print('init')
self._it = iter(obj)
async def __aiter__(self):
print('aiter')
return self
async def __anext__(self):
print('anext')
try:
value = next(self._it)
except StopIteration:
raise StopAsyncIteration
return value
async def coro():
async for letter in AsyncIteratorWrapper('abc'):
print(letter)
o = coro()
try:
o.send(None)
except StopIteration:
print('finished')
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