CINXE.COM

<!doctype html> <html class="no-js" lang="en" data-content_root="./"> <head><meta charset="utf-8"/> <meta name="viewport" content="width=device-width,initial-scale=1"/> <meta name="color-scheme" content="light dark"><meta name="viewport" content="width=device-width, initial-scale=1" /> <link rel="index" title="Index" href="genindex.html" /><link rel="search" title="Search" href="search.html" /><link rel="next" title="Community" href="community.html" /><link rel="prev" title="Release Process" href="development/release_process.html" />  <title>Success stories - gevent 24.11.2.dev0 documentation</title> <link rel="stylesheet" type="text/css" href="_static/pygments.css?v=a3258c64" /> <link rel="stylesheet" type="text/css" href="_static/styles/furo.css?v=354aac6f" /> <link rel="stylesheet" type="text/css" href="_static/styles/furo-extensions.css?v=302659d7" /> <link rel="stylesheet" type="text/css" href="_static/custom.css?v=e405f49d" /> <style> body { --color-code-background: #eeeedd; --color-code-foreground: black; --color-brand-primary: #7c9a5e; --color-brand-content: #7c9a5e; --color-foreground-border: #b7d897; --font-stack: "SF Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji"; --font-stack--monospace: "JetBrainsMono", "JetBrains Mono", "JetBrains Mono Regular", "JetBrainsMono-Regular", ui-monospace, profont, monospace; } @media not print { body[data-theme="dark"] { --color-code-background: #202020; --color-code-foreground: #d0d0d0; } @media (prefers-color-scheme: dark) { body:not([data-theme="light"]) { --color-code-background: #202020; --color-code-foreground: #d0d0d0; } } } </style><script async type="text/javascript" src="/_/static/javascript/readthedocs-addons.js"></script><meta name="readthedocs-project-slug" content="python-gevent" /><meta name="readthedocs-version-slug" content="latest" /><meta name="readthedocs-resolver-filename" content="/success.html" /><meta name="readthedocs-http-status" content="200" /></head> <body> <script> document.body.dataset.theme = localStorage.getItem("theme") || "auto"; </script> <svg xmlns="http://www.w3.org/2000/svg" style="display: none;"> <symbol id="svg-toc" viewBox="0 0 24 24"> <title>Contents</title> <svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 1024 1024"> <path d="M408 442h480c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8H408c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8zm-8 204c0 4.4 3.6 8 8 8h480c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8H408c-4.4 0-8 3.6-8 8v56zm504-486H120c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8h784c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8zm0 632H120c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8h784c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8zM115.4 518.9L271.7 642c5.8 4.6 14.4.5 14.4-6.9V388.9c0-7.4-8.5-11.5-14.4-6.9L115.4 505.1a8.74 8.74 0 0 0 0 13.8z"/> </svg> </symbol> <symbol id="svg-menu" viewBox="0 0 24 24"> <title>Menu</title> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather-menu"> <line x1="3" y1="12" x2="21" y2="12"></line> <line x1="3" y1="6" x2="21" y2="6"></line> <line x1="3" y1="18" x2="21" y2="18"></line> </svg> </symbol> <symbol id="svg-arrow-right" viewBox="0 0 24 24"> <title>Expand</title> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather-chevron-right"> <polyline points="9 18 15 12 9 6"></polyline> </svg> </symbol> <symbol id="svg-sun" viewBox="0 0 24 24"> <title>Light mode</title> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="feather-sun"> <circle cx="12" cy="12" r="5"></circle> <line x1="12" y1="1" x2="12" y2="3"></line> <line x1="12" y1="21" x2="12" y2="23"></line> <line x1="4.22" y1="4.22" x2="5.64" y2="5.64"></line> <line x1="18.36" y1="18.36" x2="19.78" y2="19.78"></line> <line x1="1" y1="12" x2="3" y2="12"></line> <line x1="21" y1="12" x2="23" y2="12"></line> <line x1="4.22" y1="19.78" x2="5.64" y2="18.36"></line> <line x1="18.36" y1="5.64" x2="19.78" y2="4.22"></line> </svg> </symbol> <symbol id="svg-moon" viewBox="0 0 24 24"> <title>Dark mode</title> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="icon-tabler-moon"> <path stroke="none" d="M0 0h24v24H0z" fill="none" /> <path d="M12 3c.132 0 .263 0 .393 0a7.5 7.5 0 0 0 7.92 12.446a9 9 0 1 1 -8.313 -12.454z" /> </svg> </symbol> <symbol id="svg-sun-with-moon" viewBox="0 0 24 24"> <title>Auto light/dark, in light mode</title> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="icon-custom-derived-from-feather-sun-and-tabler-moon"> <path style="opacity: 50%" d="M 5.411 14.504 C 5.471 14.504 5.532 14.504 5.591 14.504 C 3.639 16.319 4.383 19.569 6.931 20.352 C 7.693 20.586 8.512 20.551 9.25 20.252 C 8.023 23.207 4.056 23.725 2.11 21.184 C 0.166 18.642 1.702 14.949 4.874 14.536 C 5.051 14.512 5.231 14.5 5.411 14.5 L 5.411 14.504 Z"/> <line x1="14.5" y1="3.25" x2="14.5" y2="1.25"/> <line x1="14.5" y1="15.85" x2="14.5" y2="17.85"/> <line x1="10.044" y1="5.094" x2="8.63" y2="3.68"/> <line x1="19" y1="14.05" x2="20.414" y2="15.464"/> <line x1="8.2" y1="9.55" x2="6.2" y2="9.55"/> <line x1="20.8" y1="9.55" x2="22.8" y2="9.55"/> <line x1="10.044" y1="14.006" x2="8.63" y2="15.42"/> <line x1="19" y1="5.05" x2="20.414" y2="3.636"/> <circle cx="14.5" cy="9.55" r="3.6"/> </svg> </symbol> <symbol id="svg-moon-with-sun" viewBox="0 0 24 24"> <title>Auto light/dark, in dark mode</title> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="icon-custom-derived-from-feather-sun-and-tabler-moon"> <path d="M 8.282 7.007 C 8.385 7.007 8.494 7.007 8.595 7.007 C 5.18 10.184 6.481 15.869 10.942 17.24 C 12.275 17.648 13.706 17.589 15 17.066 C 12.851 22.236 5.91 23.143 2.505 18.696 C -0.897 14.249 1.791 7.786 7.342 7.063 C 7.652 7.021 7.965 7 8.282 7 L 8.282 7.007 Z"/> <line style="opacity: 50%" x1="18" y1="3.705" x2="18" y2="2.5"/> <line style="opacity: 50%" x1="18" y1="11.295" x2="18" y2="12.5"/> <line style="opacity: 50%" x1="15.316" y1="4.816" x2="14.464" y2="3.964"/> <line style="opacity: 50%" x1="20.711" y1="10.212" x2="21.563" y2="11.063"/> <line style="opacity: 50%" x1="14.205" y1="7.5" x2="13.001" y2="7.5"/> <line style="opacity: 50%" x1="21.795" y1="7.5" x2="23" y2="7.5"/> <line style="opacity: 50%" x1="15.316" y1="10.184" x2="14.464" y2="11.036"/> <line style="opacity: 50%" x1="20.711" y1="4.789" x2="21.563" y2="3.937"/> <circle style="opacity: 50%" cx="18" cy="7.5" r="2.169"/> </svg> </symbol> <symbol id="svg-pencil" viewBox="0 0 24 24"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="icon-tabler-pencil-code"> <path d="M4 20h4l10.5 -10.5a2.828 2.828 0 1 0 -4 -4l-10.5 10.5v4" /> <path d="M13.5 6.5l4 4" /> <path d="M20 21l2 -2l-2 -2" /> <path d="M17 17l-2 2l2 2" /> </svg> </symbol> <symbol id="svg-eye" viewBox="0 0 24 24"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="icon-tabler-eye-code"> <path stroke="none" d="M0 0h24v24H0z" fill="none" /> <path d="M10 12a2 2 0 1 0 4 0a2 2 0 0 0 -4 0" /> <path d="M11.11 17.958c-3.209 -.307 -5.91 -2.293 -8.11 -5.958c2.4 -4 5.4 -6 9 -6c3.6 0 6.6 2 9 6c-.21 .352 -.427 .688 -.647 1.008" /> <path d="M20 21l2 -2l-2 -2" /> <path d="M17 17l-2 2l2 2" /> </svg> </symbol> </svg> <input type="checkbox" class="sidebar-toggle" name="__navigation" id="__navigation"> <input type="checkbox" class="sidebar-toggle" name="__toc" id="__toc"> <label class="overlay sidebar-overlay" for="__navigation"> <div class="visually-hidden">Hide navigation sidebar</div> </label> <label class="overlay toc-overlay" for="__toc"> <div class="visually-hidden">Hide table of contents sidebar</div> </label> <a class="skip-to-content muted-link" href="#furo-main-content">Skip to content</a> <div class="page"> <header class="mobile-header"> <div class="header-left"> <label class="nav-overlay-icon" for="__navigation"> <div class="visually-hidden">Toggle site navigation sidebar</div> <i class="icon"><svg><use href="#svg-menu"></use></svg></i> </label> </div> <div class="header-center"> <a href="contents.html"><div class="brand">gevent 24.11.2.dev0 documentation</div></a> </div> <div class="header-right"> <div class="theme-toggle-container theme-toggle-header"> <button class="theme-toggle"> <div class="visually-hidden">Toggle Light / Dark / Auto color theme</div> <svg class="theme-icon-when-auto-light"><use href="#svg-sun-with-moon"></use></svg> <svg class="theme-icon-when-auto-dark"><use href="#svg-moon-with-sun"></use></svg> <svg class="theme-icon-when-dark"><use href="#svg-moon"></use></svg> <svg class="theme-icon-when-light"><use href="#svg-sun"></use></svg> </button> </div> <label class="toc-overlay-icon toc-header-icon" for="__toc"> <div class="visually-hidden">Toggle table of contents sidebar</div> <i class="icon"><svg><use href="#svg-toc"></use></svg></i> </label> </div> </header> <aside class="sidebar-drawer"> <div class="sidebar-container"> <div class="sidebar-sticky"><a class="sidebar-brand" href="contents.html"> <div class="sidebar-logo-container"> <img class="sidebar-logo" src="_static/5564530.png" alt="Logo"/> </div> </a><form class="sidebar-search-container" method="get" action="search.html" role="search"> <input class="sidebar-search" placeholder="Search" name="q" aria-label="Search"> <input type="hidden" name="check_keywords" value="yes"> <input type="hidden" name="area" value="default"> </form> <div id="searchbox"></div><div class="sidebar-scroll"><div class="sidebar-tree"> <ul> <li class="toctree-l1"><a class="reference internal" href="install.html">Installation and Requirements</a></li> <li class="toctree-l1 has-children"><a class="reference internal" href="changelog.html">Changelog</a><input class="toctree-checkbox" id="toctree-checkbox-1" name="toctree-checkbox-1" role="switch" type="checkbox"/><label for="toctree-checkbox-1"><div class="visually-hidden">Toggle navigation of Changelog</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l2"><a class="reference internal" href="changelog_1_5.html">Changes for 1.5</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_4.html">Changes for 1.4</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_3.html">Changes for 1.3</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_2.html">Changes for 1.2</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_1.html">Changes for 1.1</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_0.html">Changes for 1.0</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_pre.html">Changes before gevent 1.0</a></li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="intro.html">Introduction</a></li> <li class="toctree-l1"><a class="reference internal" href="api/gevent.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent</span></code> – common functions</a></li> <li class="toctree-l1"><a class="reference internal" href="api/gevent.greenlet.html">Greenlet Objects</a></li> <li class="toctree-l1"><a class="reference internal" href="servers.html">Implementing servers</a></li> <li class="toctree-l1 has-children"><a class="reference internal" href="dns.html">Name Resolution (DNS)</a><input class="toctree-checkbox" id="toctree-checkbox-2" name="toctree-checkbox-2" role="switch" type="checkbox"/><label for="toctree-checkbox-2"><div class="visually-hidden">Toggle navigation of Name Resolution (DNS)</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l2"><a class="reference internal" href="api/gevent.resolver.thread.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.resolver.thread</span></code> – thread based hostname resolver</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.resolver.ares.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.resolver.ares</span></code> – c-ares based hostname resolver</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.resolver.dnspython.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.resolver.dnspython</span></code> – Pure Python hostname resolver</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.resolver.blocking.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.resolver.blocking</span></code> – Non-cooperative resolver</a></li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="monitoring.html">Monitoring and Debugging gevent Applications</a></li> <li class="toctree-l1"><a class="reference internal" href="loop_impls.html">Event Loop Implementations: libuv and libev</a></li> <li class="toctree-l1"><a class="reference internal" href="configuration.html">Configuring gevent</a></li> </ul> <ul> <li class="toctree-l1 has-children"><a class="reference internal" href="api/index.html">API reference</a><input class="toctree-checkbox" id="toctree-checkbox-3" name="toctree-checkbox-3" role="switch" type="checkbox"/><label for="toctree-checkbox-3"><div class="visually-hidden">Toggle navigation of API reference</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l2"><a class="reference internal" href="api/gevent.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent</span></code> – common functions</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.timeout.html">Cooperative Timeouts Using <code class="docutils literal notranslate"><span class="pre">gevent.Timeout</span></code></a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.greenlet.html">Greenlet Objects</a></li> <li class="toctree-l2 has-children"><a class="reference internal" href="api/gevent.socket.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.socket</span></code> – Cooperative low-level networking interface</a><input class="toctree-checkbox" id="toctree-checkbox-4" name="toctree-checkbox-4" role="switch" type="checkbox"/><label for="toctree-checkbox-4"><div class="visually-hidden">Toggle navigation of gevent.socket – Cooperative low-level networking interface</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l3"><a class="reference internal" href="api/gevent._socket3.html">Python 3 interface</a></li> </ul> </li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.ssl.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.ssl</span></code> – Secure Sockets Layer (SSL/TLS) module</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.select.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.select</span></code> – Waiting for I/O completion</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.selectors.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.selectors</span></code> – High-level IO Multiplexing</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.event.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.event</span></code> – Notifications of multiple listeners</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.queue.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.queue</span></code> – Synchronized queues</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.local.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.local</span></code> – Greenlet-local objects</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.lock.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.lock</span></code> – Locking primitives</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.hub.html"><code class="docutils literal notranslate"><span class="pre">gevent.hub</span></code> - The Event Loop and the Hub</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.core.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.core</span></code> - (deprecated) event loop abstraction</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent</span></code> – common functions</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.backdoor.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.backdoor</span></code> – Interactive greenlet-based network console that can be used in any process</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.baseserver.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.baseserver</span></code> – Base class for implementing servers</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.builtins.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.builtins</span></code> – gevent friendly implementations of builtin functions</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.contextvars.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.contextvars</span></code> – Cooperative <code class="docutils literal notranslate"><span class="pre">contextvars</span></code></a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.core.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.core</span></code> - (deprecated) event loop abstraction</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.event.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.event</span></code> – Notifications of multiple listeners</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.events.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.events</span></code> – Publish/subscribe event infrastructure</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.exceptions.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.exceptions</span></code> – Exceptions</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.fileobject.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.fileobject</span></code> – Wrappers to make file-like objects cooperative</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.hub.html"><code class="docutils literal notranslate"><span class="pre">gevent.hub</span></code> - The Event Loop and the Hub</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.local.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.local</span></code> – Greenlet-local objects</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.lock.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.lock</span></code> – Locking primitives</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.monkey.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.monkey</span></code> – Make the standard library cooperative</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.os.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.os</span></code> – Low-level operating system functions from <code class="xref py py-mod docutils literal notranslate"><span class="pre">os</span></code></a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.pool.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.pool</span></code> – Managing greenlets in a group</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.pywsgi.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.pywsgi</span></code> – A pure-Python, gevent-friendly WSGI server</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.queue.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.queue</span></code> – Synchronized queues</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.resolver.ares.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.resolver.ares</span></code> – c-ares based hostname resolver</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.resolver.blocking.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.resolver.blocking</span></code> – Non-cooperative resolver</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.resolver.dnspython.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.resolver.dnspython</span></code> – Pure Python hostname resolver</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.resolver.thread.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.resolver.thread</span></code> – thread based hostname resolver</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.select.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.select</span></code> – Waiting for I/O completion</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.selectors.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.selectors</span></code> – High-level IO Multiplexing</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.server.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.server</span></code> – TCP/SSL server</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.signal.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.signal</span></code> – Cooperative implementation of special cases of <code class="xref py py-func docutils literal notranslate"><span class="pre">signal.signal()</span></code></a></li> <li class="toctree-l2 has-children"><a class="reference internal" href="api/gevent.socket.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.socket</span></code> – Cooperative low-level networking interface</a><input class="toctree-checkbox" id="toctree-checkbox-5" name="toctree-checkbox-5" role="switch" type="checkbox"/><label for="toctree-checkbox-5"><div class="visually-hidden">Toggle navigation of gevent.socket – Cooperative low-level networking interface</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l3"><a class="reference internal" href="api/gevent._socket3.html">Python 3 interface</a></li> </ul> </li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.ssl.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.ssl</span></code> – Secure Sockets Layer (SSL/TLS) module</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.subprocess.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.subprocess</span></code> – Cooperative <code class="docutils literal notranslate"><span class="pre">subprocess</span></code> module</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.thread.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.thread</span></code> – Implementation of the standard <code class="xref py py-mod docutils literal notranslate"><span class="pre">thread</span></code> module that spawns greenlets</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.threading.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.threading</span></code> – Implementation of the standard <code class="xref py py-mod docutils literal notranslate"><span class="pre">threading</span></code> using greenlets</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.threadpool.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.threadpool</span></code> - A pool of native threads</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.time.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.time</span></code> – Makes <em>sleep</em> gevent aware</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.util.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.util</span></code> – Low-level utilities</a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.ares.html"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.ares</span></code> – Backwards compatibility alias for <code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.resolver.cares</span></code></a></li> <li class="toctree-l2"><a class="reference internal" href="api/gevent.wsgi.html"><code class="docutils literal notranslate"><span class="pre">gevent.wsgi</span></code> – Historical note only; does not exist</a></li> <li class="toctree-l2 has-children"><a class="reference internal" href="examples/index.html">Examples</a><input class="toctree-checkbox" id="toctree-checkbox-6" name="toctree-checkbox-6" role="switch" type="checkbox"/><label for="toctree-checkbox-6"><div class="visually-hidden">Toggle navigation of Examples</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l3"><a class="reference internal" href="examples/concurrent_download.html">Example concurrent_download.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/dns_mass_resolve.html">Example dns_mass_resolve.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/echoserver.html">Example echoserver.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/geventsendfile.html">Example geventsendfile.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/portforwarder.html">Example portforwarder.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/processes.html">Example processes.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/psycopg2_pool.html">Example psycopg2_pool.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/threadpool.html">Example threadpool.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/udp_client.html">Example udp_client.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/udp_server.html">Example udp_server.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/unixsocket_client.html">Example unixsocket_client.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/unixsocket_server.html">Example unixsocket_server.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/webproxy.html">Example webproxy.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/webpy.html">Example webpy.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/wsgiserver.html">Example wsgiserver.py</a></li> <li class="toctree-l3"><a class="reference internal" href="examples/wsgiserver_ssl.html">Example wsgiserver_ssl.py</a></li> </ul> </li> </ul> </li> </ul> <ul> <li class="toctree-l1 has-children"><a class="reference internal" href="development/index.html">Development</a><input class="toctree-checkbox" id="toctree-checkbox-7" name="toctree-checkbox-7" role="switch" type="checkbox"/><label for="toctree-checkbox-7"><div class="visually-hidden">Toggle navigation of Development</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l2"><a class="reference internal" href="development/getting_started.html">Getting Started</a></li> <li class="toctree-l2"><a class="reference internal" href="development/installing_from_source.html">Installing From Source</a></li> <li class="toctree-l2"><a class="reference internal" href="development/running_tests.html">Running Tests</a></li> <li class="toctree-l2"><a class="reference internal" href="development/ci.html">Continuous integration</a></li> <li class="toctree-l2"><a class="reference internal" href="development/release_process.html">Release Process</a></li> </ul> </li> </ul> <ul class="current"> <li class="toctree-l1 current current-page"><a class="current reference internal" href="#">Success stories</a></li> <li class="toctree-l1"><a class="reference internal" href="community.html">Community</a></li> <li class="toctree-l1 has-children"><a class="reference internal" href="older_releases.html">Information About Older Releases</a><input class="toctree-checkbox" id="toctree-checkbox-8" name="toctree-checkbox-8" role="switch" type="checkbox"/><label for="toctree-checkbox-8"><div class="visually-hidden">Toggle navigation of Information About Older Releases</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l2 has-children"><a class="reference internal" href="whatsnew_1_5.html">What’s new in gevent 1.5</a><input class="toctree-checkbox" id="toctree-checkbox-9" name="toctree-checkbox-9" role="switch" type="checkbox"/><label for="toctree-checkbox-9"><div class="visually-hidden">Toggle navigation of What’s new in gevent 1.5</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l3"><a class="reference internal" href="changelog_1_5.html">Changes for 1.5</a></li> </ul> </li> <li class="toctree-l2 has-children"><a class="reference internal" href="whatsnew_1_4.html">What’s new in gevent 1.4</a><input class="toctree-checkbox" id="toctree-checkbox-10" name="toctree-checkbox-10" role="switch" type="checkbox"/><label for="toctree-checkbox-10"><div class="visually-hidden">Toggle navigation of What’s new in gevent 1.4</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l3"><a class="reference internal" href="changelog_1_4.html">Changes for 1.4</a></li> </ul> </li> <li class="toctree-l2 has-children"><a class="reference internal" href="whatsnew_1_3.html">What’s new in gevent 1.3</a><input class="toctree-checkbox" id="toctree-checkbox-11" name="toctree-checkbox-11" role="switch" type="checkbox"/><label for="toctree-checkbox-11"><div class="visually-hidden">Toggle navigation of What’s new in gevent 1.3</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l3"><a class="reference internal" href="changelog_1_3.html">Changes for 1.3</a></li> </ul> </li> <li class="toctree-l2 has-children"><a class="reference internal" href="whatsnew_1_2.html">What’s new in gevent 1.2</a><input class="toctree-checkbox" id="toctree-checkbox-12" name="toctree-checkbox-12" role="switch" type="checkbox"/><label for="toctree-checkbox-12"><div class="visually-hidden">Toggle navigation of What’s new in gevent 1.2</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l3"><a class="reference internal" href="changelog_1_2.html">Changes for 1.2</a></li> </ul> </li> <li class="toctree-l2 has-children"><a class="reference internal" href="whatsnew_1_1.html">What’s new in gevent 1.1</a><input class="toctree-checkbox" id="toctree-checkbox-13" name="toctree-checkbox-13" role="switch" type="checkbox"/><label for="toctree-checkbox-13"><div class="visually-hidden">Toggle navigation of What’s new in gevent 1.1</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l3"><a class="reference internal" href="changelog_1_1.html">Changes for 1.1</a></li> </ul> </li> <li class="toctree-l2 has-children"><a class="reference internal" href="whatsnew_1_0.html">What’s new in gevent 1.0</a><input class="toctree-checkbox" id="toctree-checkbox-14" name="toctree-checkbox-14" role="switch" type="checkbox"/><label for="toctree-checkbox-14"><div class="visually-hidden">Toggle navigation of What’s new in gevent 1.0</div><i class="icon"><svg><use href="#svg-arrow-right"></use></svg></i></label><ul> <li class="toctree-l3"><a class="reference internal" href="changelog_1_0.html">Changes for 1.0</a></li> </ul> </li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_5.html">Changes for 1.5</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_4.html">Changes for 1.4</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_3.html">Changes for 1.3</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_2.html">Changes for 1.2</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_1.html">Changes for 1.1</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_1_0.html">Changes for 1.0</a></li> <li class="toctree-l2"><a class="reference internal" href="changelog_pre.html">Changes before gevent 1.0</a></li> </ul> </li> </ul> </div> </div> </div> </div> </aside> <div class="main"> <div class="content"> <div class="article-container"> <a href="#" class="back-to-top muted-link"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"> <path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8v12z"></path> </svg> <span>Back to top</span> </a> <div class="content-icon-container"> <div class="theme-toggle-container theme-toggle-content"> <button class="theme-toggle"> <div class="visually-hidden">Toggle Light / Dark / Auto color theme</div> <svg class="theme-icon-when-auto-light"><use href="#svg-sun-with-moon"></use></svg> <svg class="theme-icon-when-auto-dark"><use href="#svg-moon-with-sun"></use></svg> <svg class="theme-icon-when-dark"><use href="#svg-moon"></use></svg> <svg class="theme-icon-when-light"><use href="#svg-sun"></use></svg> </button> </div> <label class="toc-overlay-icon toc-content-icon" for="__toc"> <div class="visually-hidden">Toggle table of contents sidebar</div> <i class="icon"><svg><use href="#svg-toc"></use></svg></i> </label> </div> <article role="main" id="furo-main-content"> <section id="success-stories"> <h1>Success stories<a class="headerlink" href="#success-stories" title="Link to this heading">¶</a></h1> <p>If you have a success story for gevent, contact post to the <a class="reference external" href="http://groups.google.com/group/gevent/">google group</a>.</p> <section id="reddit"> <h2>Reddit<a class="headerlink" href="#reddit" title="Link to this heading">¶</a></h2> <p>According to <a class="reference external" href="https://www.reddit.com/r/RedditEng/comments/obqtfm/solving_the_three_stooges_problem/">this 2021 post on r/RedditEng</a>:</p> <blockquote> <div><p>[Reddit needs] a web stack that can handle many concurrent requests. Reddit’s stack for most microservices is Python 3, <a class="reference external" href="https://github.com/reddit/baseplate.py">Baseplate</a>, and gevent. Django/Flask also work well when run with gevent. gevent is a Python library that transparently enables your microservice to handle high concurrency and I/O without requiring changes to your code. It is the secret sauce that allows you to run tens of thousands of pseudo-threads called greenlets (one per concurrent request) on a small number of instances. It allows for threads handling concurrent duplicate requests to be enqueued while waiting to acquire the lock, and then for those queues to be drained as threads acquire the lock and execute serially, all without exhausting the thread pool.</p> </div></blockquote> </section> <section id="omegle"> <h2><a class="reference external" href="http://omegle.com">Omegle</a><a class="headerlink" href="#omegle" title="Link to this heading">¶</a></h2> <p>I’ve been using gevent to power Omegle, my high-volume chat site, since 2010. Omegle is used by nearly half a million people every day, and it has as many as 20,000 users chatting at any given time. It needs to needs to perform well and be extremely reliable, and gevent makes that easy to do: gevent gives you power to do more creative things, and it’s fast enough that you can more easily write apps that stand up to a lot of load.</p> <p>gevent is well-engineered, and its development has been maintaining an active, dedicated pace for as long as I’ve been following it. Any time I’ve had an issue with gevent that I couldn’t solve on my own, the friendly community has been extremely helpful and knowledgeable. I really think gevent is the best library of its type for Python right now, and I would recommend it to anyone who needs a good networking library.</p> <p>– Leif K-Brooks, Founder, <a class="reference external" href="http://omegle.com">Omegle.com</a></p> </section> <section id="pediapress"> <h2><a class="reference external" href="http://pediapress.com/">Pediapress</a><a class="headerlink" href="#pediapress" title="Link to this heading">¶</a></h2> <p><a class="reference external" href="http://pediapress.com/">Pediapress</a> powers <a class="reference external" href="http://www.wikipedia.org/">Wikipedia</a>’s PDF rendering cluster. I’ve started using gevent in 2009 after our NFS based job queue showed serious performance problems on Wikipedia’s PDF rendering cluster. I’ve replaced that with a gevent based job queue server in a short time. gevent is managing the generation of around 100000 PDF files daily and is serving them to wikipedia users.</p> <p>Recently I’ve refactored the component that fetches articles and images from wikipedia to use gevent instead of twisted. The code is much cleaner and much more manageable then before.</p> <p>– Ralf Schmitt, Developer, <a class="reference external" href="http://pediapress.com/">Pediapress</a></p> </section> <section id="esn-social-software"> <h2><a class="reference external" href="http://esn.me">ESN Social Software</a><a class="headerlink" href="#esn-social-software" title="Link to this heading">¶</a></h2> <p>Wanting to avoid the ravages of asynchronous programming we choose to base our real-time web development framework Planet on gevent and Python. We’ve found gevent to be stable, efficient, highly functional and still simplistic enough for our needs and our customer’s requirements.</p> <p>– Jonas Tärnström, Product Manager, <a class="reference external" href="http://esn.me">ESN Social Software</a></p> </section> <section id="blue-shell-games"> <h2><a class="reference external" href="http://www.blueshellgames.com/">Blue Shell Games</a><a class="headerlink" href="#blue-shell-games" title="Link to this heading">¶</a></h2> <p>At Blue Shell Games we use gevent to power the application servers that connect more than a million daily players of our social casino games. Recognizing that our game code is largely I/O bound — whether waiting on a database, social networking data providers, or the clients themselves — we chose gevent as our asynchronous networking framework. Not only does gevent offer the best performance of any of the Python async networking packages, its threading model makes multithreaded application servers far easier to write than traditional kernel threading-based approaches. As our applications add more real-time multiplayer features, gevent is ready to handle these kinds of problems with ease.</p> <p>– David Young, CTO, Co-Founder, <a class="reference external" href="http://www.blueshellgames.com/">Blue Shell Games</a></p> </section> <section id="tellapart"> <h2><a class="reference external" href="http://tellapart.com">TellApart</a><a class="headerlink" href="#tellapart" title="Link to this heading">¶</a></h2> <p>At TellApart, we have been using gevent since 2010 as the underpinnings of our frontend servers. It enables us to serve millions of requests every hour through only a handful of servers, while achieving the strict latency constraints of Real-Time Bidding ad exchanges. Since then, we’ve expanded our use of gevent throughout our stack. Combined with tools such as closures and generators, gevent makes complicated queuing, distribution, and streaming workloads dramatically easier to implement. Our open-source event aggregation service, Taba, couldn’t have been built without it.</p> <p>See also: <a class="reference external" href="http://tellapart.com/gevent-at-tellapart">Gevent at TellApart</a></p> <p>– Kevin Ballard, Software Engineer, <a class="reference external" href="http://tellapart.com">TellApart</a></p> </section> <section id="disqus"> <h2>Disqus<a class="headerlink" href="#disqus" title="Link to this heading">¶</a></h2> <p>See: <a class="reference external" href="https://ep2012.europython.eu/conference/talks/making-disqus-realtime">Making Disqus Realtime</a></p> </section> <section id="pinterest"> <h2>Pinterest<a class="headerlink" href="#pinterest" title="Link to this heading">¶</a></h2> <p>Pinterest is one of the biggest players of gevents. We started using gevent in 2011 to query our mysql shards concurrently. It served us well so far. We run all our WSGI containers using gevent. We are in the process of making all our service calls gevented. We use a gevented based thrift server which proved to be way more efficient than the normal python version. I think there is a cost upfront to make your code greenlet safe but we saw pretty huge win later. If you are looking to scale out on python gevent is your best friend.</p> <p>– Yash Nelapati, Engineer, <a class="reference external" href="http://pinterest.com/">Pinterest</a></p> <p>TBA: Spotify, Twilio</p> </section> </section> </article> </div> <footer> <div class="related-pages"> <a class="next-page" href="community.html"> <div class="page-info"> <div class="context"> <span>Next</span> </div> <div class="title">Community</div> </div> <svg class="furo-related-icon"><use href="#svg-arrow-right"></use></svg> </a> <a class="prev-page" href="development/release_process.html"> <svg class="furo-related-icon"><use href="#svg-arrow-right"></use></svg> <div class="page-info"> <div class="context"> <span>Previous</span> </div> <div class="title">Release Process</div> </div> </a> </div> <div class="bottom-of-page"> <div class="left-details"> <div class="copyright"> Copyright © 2009-2023, gevent contributors </div> Made with <a href="https://www.sphinx-doc.org/">Sphinx</a> and <a class="muted-link" href="https://pradyunsg.me">@pradyunsg</a>'s <a href="https://github.com/pradyunsg/furo">Furo</a> </div> <div class="right-details"> </div> </div> </footer> </div> <aside class="toc-drawer"> <div class="toc-sticky toc-scroll"> <div class="toc-title-container"> <span class="toc-title"> On this page </span> </div> <div class="toc-tree-container"> <div class="toc-tree"> <ul> <li><a class="reference internal" href="#">Success stories</a><ul> <li><a class="reference internal" href="#reddit">Reddit</a></li> <li><a class="reference internal" href="#omegle">Omegle</a></li> <li><a class="reference internal" href="#pediapress">Pediapress</a></li> <li><a class="reference internal" href="#esn-social-software">ESN Social Software</a></li> <li><a class="reference internal" href="#blue-shell-games">Blue Shell Games</a></li> <li><a class="reference internal" href="#tellapart">TellApart</a></li> <li><a class="reference internal" href="#disqus">Disqus</a></li> <li><a class="reference internal" href="#pinterest">Pinterest</a></li> </ul> </li> </ul> </div> </div> </div> </aside> </div> </div><script src="_static/documentation_options.js?v=32fdf4fc"></script> <script src="_static/doctools.js?v=9bcbadda"></script> <script src="_static/sphinx_highlight.js?v=dc90522c"></script> <script src="_static/scripts/furo.js?v=5fa4622c"></script> </body> </html>