Issue #29407: Remove redundant ensure_future() calls in factorial example
diff --git a/Doc/library/asyncio-task.rst b/Doc/library/asyncio-task.rst
index 9bff1c4..90cb9c3 100644
--- a/Doc/library/asyncio-task.rst
+++ b/Doc/library/asyncio-task.rst
@@ -472,21 +472,20 @@
import asyncio
- @asyncio.coroutine
- def factorial(name, number):
+ async def factorial(name, number):
f = 1
for i in range(2, number+1):
print("Task %s: Compute factorial(%s)..." % (name, i))
- yield from asyncio.sleep(1)
+ await asyncio.sleep(1)
f *= i
print("Task %s: factorial(%s) = %s" % (name, number, f))
loop = asyncio.get_event_loop()
- tasks = [
- asyncio.ensure_future(factorial("A", 2)),
- asyncio.ensure_future(factorial("B", 3)),
- asyncio.ensure_future(factorial("C", 4))]
- loop.run_until_complete(asyncio.gather(*tasks))
+ loop.run_until_complete(asyncio.gather(
+ factorial("A", 2),
+ factorial("B", 3),
+ factorial("C", 4),
+ ))
loop.close()
Output::