Initial Commit

triotest1/echo_client.py

@@ -0,0 +1,37 @@
+import sys
+import trio
+
+PORT = 8081
+
+
+async def sender(client_stream):
+    print("sender: started!")
+    while True:
+        data = b"async can sometimes be confusing, but I believe in you!"
+        print(f"sender: sending {data!r}")
+        await client_stream.send_all(data)
+        await trio.sleep(1)
+
+
+async def receiver(client_stream):
+    print("receiver: started!")
+    async for data in client_stream:
+        print(f"receiver got data {data!r}")
+    print("received: connection closed")
+    sys.exit()
+
+
+async def parent():
+    print(f"parent: connecting to 127.0.0.1:{PORT}")
+    client_stream = await trio.open_tcp_stream("127.0.0.1", PORT)
+    async with client_stream:
+        async with trio.open_nursery() as nursery:
+            print("parent: spawning sender...")
+            nursery.start_soon(sender, client_stream)
+
+            print("parent: spawning receiver...")
+            # noinspection PyTypeChecker
+            nursery.start_soon(receiver, client_stream)
+
+if __name__ == '__main__':
+    trio.run(parent)