mirror of
https://github.com/licsber/micropython.git
synced 2024-09-20 00:50:24 +08:00
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
|
|
|
|
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')
|