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</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 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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="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="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="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="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="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="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 class="current"> <li class="toctree-l1 current has-children"><a class="reference internal" href="index.html">API reference</a><input checked="" 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 class="current"> <li class="toctree-l2"><a class="reference internal" href="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="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="gevent.greenlet.html">Greenlet Objects</a></li> <li class="toctree-l2 has-children"><a class="reference internal" href="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="gevent._socket3.html">Python 3 interface</a></li> </ul> </li> <li class="toctree-l2"><a class="reference internal" href="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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="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 current current-page"><a class="current reference internal" href="#"><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="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="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="gevent._socket3.html">Python 3 interface</a></li> </ul> </li> <li class="toctree-l2"><a class="reference internal" href="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="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="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="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="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="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="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="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="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 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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" 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id="gevent.server.DatagramServer"> <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">DatagramServer</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/gevent/server.html#DatagramServer"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#gevent.server.DatagramServer" title="Link to this definition">¶</a></dt> <dd><p>Bases: <a class="reference internal" href="gevent.baseserver.html#gevent.baseserver.BaseServer" title="gevent.baseserver.BaseServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">BaseServer</span></code></a></p> <p>A UDP server</p> <dl class="py method"> <dt class="sig sig-object py" id="gevent.server.DatagramServer.init_socket"> <span class="sig-name descname"><span class="pre">init_socket</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/gevent/server.html#DatagramServer.init_socket"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#gevent.server.DatagramServer.init_socket" title="Link to this definition">¶</a></dt> <dd><p>If the user initialized the server with an address rather than socket, then this function must create a socket, bind it, and put it into listening mode.</p> <p>It is not supposed to be called by the user, it is called by <code class="xref py py-meth docutils literal notranslate"><span class="pre">start()</span></code> before starting the accept loop.</p> </dd></dl> </dd></dl> <dl class="py class"> <dt class="sig sig-object py" id="gevent.server.StreamServer"> <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">StreamServer</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">listener</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">handle</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">backlog</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">spawn</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'default'</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">ssl_args</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/gevent/server.html#StreamServer"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#gevent.server.StreamServer" title="Link to this definition">¶</a></dt> <dd><p>Bases: <a class="reference internal" href="gevent.baseserver.html#gevent.baseserver.BaseServer" title="gevent.baseserver.BaseServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">BaseServer</span></code></a></p> <p>A generic TCP server.</p> <p>Accepts connections on a listening socket and spawns user-provided <em>handle</em> function for each connection with 2 arguments: the client socket and the client address.</p> <p>Note that although the errors in a successfully spawned handler will not affect the server or other connections, the errors raised by <code class="xref py py-func docutils literal notranslate"><span class="pre">accept()</span></code> and <em>spawn</em> cause the server to stop accepting for a short amount of time. The exact period depends on the values of <code class="xref py py-attr docutils literal notranslate"><span class="pre">min_delay</span></code> and <code class="xref py py-attr docutils literal notranslate"><span class="pre">max_delay</span></code> attributes.</p> <p>The delay starts with <code class="xref py py-attr docutils literal notranslate"><span class="pre">min_delay</span></code> and doubles with each successive error until it reaches <code class="xref py py-attr docutils literal notranslate"><span class="pre">max_delay</span></code>. A successful <code class="xref py py-func docutils literal notranslate"><span class="pre">accept()</span></code> resets the delay to <code class="xref py py-attr docutils literal notranslate"><span class="pre">min_delay</span></code> again.</p> <p>See <a class="reference internal" href="gevent.baseserver.html#gevent.baseserver.BaseServer" title="gevent.baseserver.BaseServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">BaseServer</span></code></a> for information on defining the <em>handle</em> function and important restrictions on it.</p> <p><strong>SSL Support</strong></p> <p>The server can optionally work in SSL mode when given the correct keyword arguments. (That is, the presence of any keyword arguments will trigger SSL mode.) On Python 2.7.9 and later (any Python version that supports the <a class="reference external" href="https://docs.python.org/3/library/ssl.html#ssl.SSLContext" title="(in Python v3.13)"><code class="xref py py-class docutils literal notranslate"><span class="pre">ssl.SSLContext</span></code></a>), this can be done with a configured <code class="docutils literal notranslate"><span class="pre">SSLContext</span></code>. On any Python version, it can be done by passing the appropriate arguments for <code class="xref py py-func docutils literal notranslate"><span class="pre">ssl.wrap_socket()</span></code>.</p> <p>The incoming socket will be wrapped into an SSL socket before being passed to the <em>handle</em> function.</p> <p>If the <em>ssl_context</em> keyword argument is present, it should contain an <a class="reference external" href="https://docs.python.org/3/library/ssl.html#ssl.SSLContext" title="(in Python v3.13)"><code class="xref py py-class docutils literal notranslate"><span class="pre">ssl.SSLContext</span></code></a>. The remaining keyword arguments are passed to the <a class="reference external" href="https://docs.python.org/3/library/ssl.html#ssl.SSLContext.wrap_socket" title="(in Python v3.13)"><code class="xref py py-meth docutils literal notranslate"><span class="pre">ssl.SSLContext.wrap_socket()</span></code></a> method of that object. Depending on the Python version, supported arguments may include:</p> <ul class="simple"> <li><p>server_hostname</p></li> <li><p>suppress_ragged_eofs</p></li> <li><p>do_handshake_on_connect</p></li> </ul> <div class="admonition caution"> <p class="admonition-title">Caution</p> <p>When using an SSLContext, it should either be imported from <a class="reference internal" href="gevent.ssl.html#module-0" title="gevent.ssl"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.ssl</span></code></a>, or the process needs to be monkey-patched. If the process is not monkey-patched and you pass the standard library SSLContext, the resulting client sockets will not cooperate with gevent.</p> </div> <p>Otherwise, keyword arguments are assumed to apply to <code class="xref py py-func docutils literal notranslate"><span class="pre">ssl.wrap_socket()</span></code>. These keyword arguments may include:</p> <ul class="simple"> <li><p>keyfile</p></li> <li><p>certfile</p></li> <li><p>cert_reqs</p></li> <li><p>ssl_version</p></li> <li><p>ca_certs</p></li> <li><p>suppress_ragged_eofs</p></li> <li><p>do_handshake_on_connect</p></li> <li><p>ciphers</p></li> </ul> <div class="versionchanged"> <p><span class="versionmodified changed">Changed in version 1.2a2: </span>Add support for the <em>ssl_context</em> keyword argument.</p> </div> <dl class="py method"> <dt class="sig sig-object py" id="gevent.server.StreamServer.init_socket"> <span class="sig-name descname"><span class="pre">init_socket</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/gevent/server.html#StreamServer.init_socket"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#gevent.server.StreamServer.init_socket" title="Link to this definition">¶</a></dt> <dd><p>If the user initialized the server with an address rather than socket, then this function must create a socket, bind it, and put it into listening mode.</p> <p>It is not supposed to be called by the user, it is called by <code class="xref py py-meth docutils literal notranslate"><span class="pre">start()</span></code> before starting the accept loop.</p> </dd></dl> </dd></dl> </section> </article> </div> <footer> <div class="related-pages"> <a class="next-page" href="gevent.signal.html"> <div class="page-info"> <div class="context"> <span>Next</span> </div> <div class="title"><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></div> </div> <svg class="furo-related-icon"><use href="#svg-arrow-right"></use></svg> </a> <a class="prev-page" href="gevent.pywsgi.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"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.pywsgi</span></code> – A pure-Python, gevent-friendly WSGI server</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="#"><code class="xref py py-mod docutils literal notranslate"><span class="pre">gevent.server</span></code> – TCP/SSL server</a><ul> <li><a class="reference internal" href="#gevent.server.DatagramServer"><code class="docutils literal notranslate"><span class="pre">DatagramServer</span></code></a><ul> <li><a class="reference internal" href="#gevent.server.DatagramServer.init_socket"><code class="docutils literal notranslate"><span class="pre">DatagramServer.init_socket()</span></code></a></li> </ul> </li> <li><a class="reference internal" href="#gevent.server.StreamServer"><code class="docutils literal notranslate"><span class="pre">StreamServer</span></code></a><ul> <li><a class="reference internal" href="#gevent.server.StreamServer.init_socket"><code class="docutils literal notranslate"><span class="pre">StreamServer.init_socket()</span></code></a></li> </ul> </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>