reorganization of examples, plus some new ones for the client

Author: miguelgrinberg

examples/README.rst

@@ -0,0 +1,37 @@
+import asyncio
+import time
+import socketio
+
+loop = asyncio.get_event_loop()
+sio = socketio.AsyncClient()
+start_timer = None
+
+
+async def send_ping():
+    global start_timer
+    start_timer = time.time()
+    await sio.emit('ping_from_client')
+
+
+@sio.on('connect')
+async def on_connect():
+    print('connected to server')
+    await send_ping()
+
+
+@sio.on('pong_from_server')
+async def on_pong(data):
+    global start_timer
+    latency = time.time() - start_timer
+    print('latency is {0:.2f} ms'.format(latency * 1000))
+    await sio.sleep(1)
+    await send_ping()
+
+
+async def start_server():
+    await sio.connect('http://localhost:5000')
+    await sio.wait()
+
+
+if __name__ == '__main__':
+    loop.run_until_complete(start_server())

examples/client/README.rst

@@ -0,0 +1,31 @@
+import time
+import socketio
+
+sio = socketio.Client()
+start_timer = None
+
+
+def send_ping():
+    global start_timer
+    start_timer = time.time()
+    sio.emit('ping_from_client')
+
+
+@sio.on('connect')
+def on_connect():
+    print('connected to server')
+    send_ping()
+
+
+@sio.on('pong_from_server')
+def on_pong(data):
+    global start_timer
+    latency = time.time() - start_timer
+    print('latency is {0:.2f} ms'.format(latency * 1000))
+    sio.sleep(1)
+    send_ping()
+
+
+if __name__ == '__main__':
+    sio.connect('http://localhost:5000')
+    sio.wait()

examples/client/asyncio/README.rst

@@ -218,8 +218,10 @@ async def _emit_internal(self, event, data, namespace=None, id=None):
         # as a single argument
         if isinstance(data, tuple):
             data = list(data)
-        else:
+        elif data is not None:
             data = [data]
+        else:
+            data = []
         await self._send_packet(packet.Packet(
             packet.EVENT, namespace=namespace, data=[event] + data, id=id,
             binary=binary))

examples/client/asyncio/latency_client.py

@@ -320,8 +320,10 @@ def _emit_internal(self, event, data, namespace=None, id=None):
         # as a single argument
         if isinstance(data, tuple):
             data = list(data)
-        else:
+        elif data is not None:
             data = [data]
+        else:
+            data = []
         self._send_packet(packet.Packet(packet.EVENT, namespace=namespace,
                                         data=[event] + data, id=id,
                                         binary=binary))