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author | Victor Stinner <victor.stinner@gmail.com> | 2014-10-12 09:35:09 (GMT) |
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committer | Victor Stinner <victor.stinner@gmail.com> | 2014-10-12 09:35:09 (GMT) |
commit | 53664343368a61a2986d3bee3b9b0888376f51c6 (patch) | |
tree | 74f94738f81392fa95f8bfd5a7f792a2c7232b66 /Doc/library | |
parent | cfbea3a02ebecf59a30b3878f6846ba21f96431c (diff) | |
download | cpython-53664343368a61a2986d3bee3b9b0888376f51c6.zip cpython-53664343368a61a2986d3bee3b9b0888376f51c6.tar.gz cpython-53664343368a61a2986d3bee3b9b0888376f51c6.tar.bz2 |
asyncio doc: enhance TCP client example
Diffstat (limited to 'Doc/library')
-rw-r--r-- | Doc/library/asyncio-protocol.rst | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/Doc/library/asyncio-protocol.rst b/Doc/library/asyncio-protocol.rst index 66524c1..487b5ad 100644 --- a/Doc/library/asyncio-protocol.rst +++ b/Doc/library/asyncio-protocol.rst @@ -447,21 +447,26 @@ TCP echo client example, send data and wait until the connection is closed:: import asyncio class EchoClientProtocol(asyncio.Protocol): - message = 'This is the message. It will be echoed.' + def __init__(self, message, loop): + self.message = message + self.loop = loop def connection_made(self, transport): transport.write(self.message.encode()) - print('data sent: {}'.format(self.message)) + print('Data sent: {!r}'.format(self.message)) def data_received(self, data): - print('data received: {}'.format(data.decode())) + print('Data received: {!r}'.format(data.decode())) def connection_lost(self, exc): - print('server closed the connection') - asyncio.get_event_loop().stop() + print('The server closed the connection') + print('Stop the event lop') + self.loop.stop() loop = asyncio.get_event_loop() - coro = loop.create_connection(EchoClientProtocol, '127.0.0.1', 8888) + message = 'Hello World!' + coro = loop.create_connection(lambda: EchoClientProtocol(message, loop), + '127.0.0.1', 8888) loop.run_until_complete(coro) loop.run_forever() loop.close() @@ -494,7 +499,7 @@ TCP echo server example, send back received data and close the connection:: print('Send: {!r}'.format(message)) self.transport.write(data) - print('Close the socket') + print('Close the client socket') self.transport.close() loop = asyncio.get_event_loop() |