8dspaces · July 9, 2017 09:26 · Jul 9, 2017 · Feb 20, 2017
diff --git a/asyncio-async-await.py b/asyncio-async-await.py
@@ -1,10 +1,24 @@
 import asyncio
 loop = asyncio.get_event_loop()
 
-async def hello():
-    await asyncio.sleep(3)
-    print('Hello!')
-
+
+async def hello(task, sleep_seconds):
+    print('{}:hello'.format(task))
+    await asyncio.sleep(sleep_seconds)
+    print('{}:world!'.format(task))
+
+
+# update original one example to make the result easily undertand, it takes 4 seconds 
 if __name__ == '__main__':
-    loop.run_until_complete(hello())
+    from time import time 
+
+    start = time()
+    tasks = [
+        hello('task1', 4),
+        hello('task2', 3),
+        hello('task3', 2)]
+    loop.run_until_complete(asyncio.wait(tasks))
+
+    end = time()
+    print(end-start)
 
diff --git a/asyncio-async-await.py b/asyncio-async-await.py
@@ -0,0 +1,10 @@
+import asyncio
+loop = asyncio.get_event_loop()
+
+async def hello():
+    await asyncio.sleep(3)
+    print('Hello!')
+
+if __name__ == '__main__':
+    loop.run_until_complete(hello())
+
diff --git a/asyncio-callbacks.py b/asyncio-callbacks.py
@@ -0,0 +1,14 @@
+import asyncio
+loop = asyncio.get_event_loop()
+
+def hello():
+    loop.call_later(3, print_hello)
+
+def print_hello():
+    print('Hello!')
+    loop.stop()
+
+if __name__ == '__main__':
+    loop.call_soon(hello)
+    loop.run_forever()
+
diff --git a/asyncio-coroutines.py b/asyncio-coroutines.py
@@ -0,0 +1,11 @@
+import asyncio
+loop = asyncio.get_event_loop()
+
+@asyncio.coroutine
+def hello():
+    yield from asyncio.sleep(3)
+    print('Hello!')
+
+if __name__ == '__main__':
+    loop.run_until_complete(hello())
+
diff --git a/eventlet-greenlets.py b/eventlet-greenlets.py
@@ -0,0 +1,9 @@
+from eventlet import sleep
+
+def hello():
+    sleep(3)
+    print('Hello!')
+
+if __name__ == '__main__':
+    hello()
+
diff --git a/gevent-greenlets.py b/gevent-greenlets.py
@@ -0,0 +1,9 @@
+from gevent import sleep
+
+def hello():
+    sleep(3)
+    print('Hello!')
+
+if __name__ == '__main__':
+    hello()
+
diff --git a/sync.py b/sync.py
@@ -0,0 +1,8 @@
+from time import sleep
+
+def hello():
+    sleep(3)
+    print('Hello!')
+
+if __name__ == '__main__':
+    hello()
diff --git a/twisted-callbacks.py b/twisted-callbacks.py
@@ -0,0 +1,13 @@
+from twisted.internet import reactor
+
+def hello():
+    reactor.callLater(3, print_hello)
+
+def print_hello():
+    print('Hello!')
+    reactor.stop()
+
+if __name__ == '__main__':
+    reactor.callWhenRunning(hello)
+    reactor.run()
+
diff --git a/twisted-coroutines.py b/twisted-coroutines.py
@@ -0,0 +1,18 @@
+from twisted.internet import reactor
+from twisted.internet.defer import inlineCallbacks, Deferred
+
+def sleep(secs):
+    d = Deferred()
+    reactor.callLater(secs, d.callback, None)
+    return d
+
+@inlineCallbacks
+def hello():
+    yield sleep(3)
+    print('Hello!')
+    reactor.stop()
+
+if __name__ == '__main__':
+    reactor.callWhenRunning(hello)
+    reactor.run()
+
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