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Python3.4 ã®æ–°æ©Ÿèƒ½ asyncio を使ã£ã¦ã¿ã‚‹ - Cybozu Inside Out | サイボウズエンジニアã®ãƒ–ãƒã‚°
山本泰宇ã§ã™ã€‚ã“ã‚“ã«ã¡ã¯ã€‚ é‹ç”¨æœ¬éƒ¨ã§ã¯æœ€è¿‘ Python3 ã¸ã®ç§»è¡Œã‚’進ã‚ã¦ã„ã¾ã™ã€‚ãã¡ã‚‰ã®è©±ã¯åˆ¥é€”ã”紹介ã™ã‚‹äºˆå®šã§ã™ãŒã€ä»Šå›žã¯ Python3.4 ã§è¿½åŠ ã•ã‚ŒãŸ asyncio モジュールã®ä½¿ã„ã‹ãŸ(ã¨ã„ã†ã‹è½ã—ç©´)を解説ã—ã¾ã™ã€‚å…ˆã«çµè«–を書ã„ã¦ãŠãã¨ã€Python3.5 ã®æ”¹è‰¯ã‚’å¾…ã¤ã®ãŒå‰ã¨ã„ã†è©±ã§ã™ã€‚ サンプルã¨ã—ã¦è¤‡æ•°ã® SSH を一斉ã«å‘¼ã³å‡ºã—ã¦ã†ã¾ã„ã“ã¨å‡¦ç†ã—ã¦ãれる passh ã‚’ GitHub ã§å…¬é–‹ã—ã¦ã„ã¾ã™ã€‚実際ã«ç¤¾å†…ã§åˆ©ç”¨ã—ã¦ã„ã‚‹ã‚‚ã®ã‚’デãƒãƒ¥ãƒ¼ãƒ³ã—ã¦ä½¿ã„ã‚„ã™ãã¾ã¨ã‚ãŸã‚‚ã®ã§ã™ã€‚ 本題㮠asyncio ã§ã™ãŒã€Python3 ã§éžåŒæœŸ I/O 処ç†ã‚’実ç¾ã™ã‚‹ãŸã‚ã«è¿½åŠ ã•ã‚ŒãŸã‚¤ãƒ™ãƒ³ãƒˆé§†å‹•å‡¦ç†ã®ãƒ•ãƒ¬ãƒ¼ãƒ ワークã§ã™ã€‚最åˆã«æ›¸ã„ã¦ãŠãã¾ã™ãŒã€ä»¥ä¸‹ã§è¨€åŠã™ã‚‹é›£ã‚ã‚Šãªç‚¹ã®ã„ãã¤ã‹ã¯ Python3.5 ã§æ”¹è‰¯ã•ã‚Œã‚‹äºˆå®šã®ã‚ˆã†ã§ã™ã€‚[PEP-0492, PEP 492 vs. P
Streams
Streams¶ Source code: Lib/asyncio/streams.py Streams are high-level async/await-ready primitives to work with network connections. Streams allow sending and receiving data without using callbacks or low-level protocols and transports. Here is an example of a TCP echo client written using asyncio streams: import asyncio async def tcp_echo_client(message): reader, writer = await asyncio.open_connect
asyncio streams check if reader has data
So I want to implement a simple comms protocol where reads & writes are completely asynchronous. That means that client sends some data and then server may or may not respond with an answer. So I can't just call reader.read() because that blocks until at least something is returned. And I may have something more to send in the mean time. So is there a way to check if reader has something to read?
The New asyncio in Python 3.4: Servers, Protocols, and Transports | Dr Dobb's
The New asyncio in Python 3.4: Servers, Protocols, and Transports By Gastón Hillar, June 24, 2014 Coding advanced asynchronous I/O with Python's new high-level streams API. In a previous article on the new asyncio module introduced in Python 3.4, I explained simple use of event loop functions that register, execute, and delay or cancel calls. In this article, I demonstrate more-advanced examples t
Understanding Asynchronous IO With Python's Asyncio And Node.js
Introduction I spent this summer working on a web platform running on Node.js. This was the first time I worked full-time with Node.js and one thing that became quite apparent after a few weeks of working with it was that many developers, including myself at the time, lack clarify on exactly how the asynchronous features of Node.js work, and how they are implemented at a lower level. Since I belie
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https://qiita.com/Lspeciosum/items/98e05c7495369ab9d102
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http://davebehnke.com/python-asyncio-streams-client-server.html
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