[Python-checkins] cpython (3.5): Issue #29407: Remove redundant ensure_future() calls in factorial example

[berker.peksag]

https://hg.python.org/cpython/rev/e4f6874abda6
changeset:   106368:e4f6874abda6
branch:      3.5
parent:      106359:7b279c263708
user:        Berker Peksag <berker.peksag at gmail.com>
date:        Wed Feb 01 22:37:16 2017 +0300
summary:
  Issue #29407: Remove redundant ensure_future() calls in factorial example

files:
  Doc/library/asyncio-task.rst |  15 +++++++--------
  1 files changed, 7 insertions(+), 8 deletions(-)


diff --git a/Doc/library/asyncio-task.rst b/Doc/library/asyncio-task.rst
--- 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::

-- 
Repository URL: https://hg.python.org/cpython