From: Victor Stinner <victor.stinner@gmail.com>
Date: Mon, 2 Dec 2013 11:21:30 +0000 (+0100)
Subject: Issue #19833: add 2 examples to asyncio doc (hello world)
X-Git-Tag: v3.4.0b2~401
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4e70bb84e6de52369ca9f3eb5c76b34f421d9e92;p=python

Issue #19833: add 2 examples to asyncio doc (hello world)
---

diff --git a/Doc/library/asyncio.rst b/Doc/library/asyncio.rst
index aeb70dfecd..b2c72cb6b9 100644
--- a/Doc/library/asyncio.rst
+++ b/Doc/library/asyncio.rst
@@ -550,6 +550,42 @@ Synchronization primitives
 Examples
 --------
 
+Hello World (callback)
+^^^^^^^^^^^^^^^^^^^^^^
+
+Print ``Hello World`` every two seconds, using a callback::
+
+    import asyncio
+
+    def print_and_repeat(loop):
+        print('Hello World')
+        loop.call_later(2, print_and_repeat, loop)
+
+    loop = asyncio.get_event_loop()
+    print_and_repeat(loop)
+    loop.run_forever()
+
+
+Hello World (callback)
+^^^^^^^^^^^^^^^^^^^^^^
+
+Print ``Hello World`` every two seconds, using a coroutine::
+
+    import asyncio
+
+    @asyncio.coroutine
+    def greet_every_two_seconds():
+        while True:
+            print('Hello World')
+            yield from asyncio.sleep(2)
+
+    loop = asyncio.get_event_loop()
+    loop.run_until_complete(greet_every_two_seconds())
+
+
+Echo server
+^^^^^^^^^^^
+
 A :class:`Protocol` implementing an echo server::
 
    class EchoServer(asyncio.Protocol):