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Internet Protocols and Support</a> »</li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <div class="section" id="module-SimpleXMLRPCServer"> <span id="simplexmlrpcserver-basic-xml-rpc-server"></span><h1>20.24. <a class="reference internal" href="#module-SimpleXMLRPCServer" title="SimpleXMLRPCServer: Basic XML-RPC server implementation."><code class="xref py py-mod docutils literal notranslate"><span class="pre">SimpleXMLRPCServer</span></code></a> — Basic XML-RPC server<a class="headerlink" href="#module-SimpleXMLRPCServer" title="Permalink to this headline">¶</a></h1> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">The <a class="reference internal" href="#module-SimpleXMLRPCServer" title="SimpleXMLRPCServer: Basic XML-RPC server implementation."><code class="xref py py-mod docutils literal notranslate"><span class="pre">SimpleXMLRPCServer</span></code></a> module has been merged into <code class="xref py py-mod docutils literal notranslate"><span class="pre">xmlrpc.server</span></code> in Python 3. The <a class="reference internal" href="../glossary.html#term-2to3"><span class="xref std std-term">2to3</span></a> tool will automatically adapt imports when converting your sources to Python 3.</p> </div> <div class="versionadded"> <p><span class="versionmodified">New in version 2.2.</span></p> </div> <p><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/2.7/Lib/SimpleXMLRPCServer.py">Lib/SimpleXMLRPCServer.py</a></p> <hr class="docutils" /> <p>The <a class="reference internal" href="#module-SimpleXMLRPCServer" title="SimpleXMLRPCServer: Basic XML-RPC server implementation."><code class="xref py py-mod docutils literal notranslate"><span class="pre">SimpleXMLRPCServer</span></code></a> module provides a basic server framework for XML-RPC servers written in Python. Servers can either be free standing, using <a class="reference internal" href="#SimpleXMLRPCServer.SimpleXMLRPCServer" title="SimpleXMLRPCServer.SimpleXMLRPCServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">SimpleXMLRPCServer</span></code></a>, or embedded in a CGI environment, using <a class="reference internal" href="#SimpleXMLRPCServer.CGIXMLRPCRequestHandler" title="SimpleXMLRPCServer.CGIXMLRPCRequestHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">CGIXMLRPCRequestHandler</span></code></a>.</p> <dl class="class"> <dt id="SimpleXMLRPCServer.SimpleXMLRPCServer"> <em class="property">class </em><code class="descclassname">SimpleXMLRPCServer.</code><code class="descname">SimpleXMLRPCServer</code><span class="sig-paren">(</span><em>addr[, requestHandler[, logRequests[, allow_none[, encoding[, bind_and_activate]]]]</em><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.SimpleXMLRPCServer" title="Permalink to this definition">¶</a></dt> <dd><p>Create a new server instance. This class provides methods for registration of functions that can be called by the XML-RPC protocol. The <em>requestHandler</em> parameter should be a factory for request handler instances; it defaults to <a class="reference internal" href="#SimpleXMLRPCServer.SimpleXMLRPCRequestHandler" title="SimpleXMLRPCServer.SimpleXMLRPCRequestHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">SimpleXMLRPCRequestHandler</span></code></a>. The <em>addr</em> and <em>requestHandler</em> parameters are passed to the <a class="reference internal" href="socketserver.html#SocketServer.TCPServer" title="SocketServer.TCPServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">SocketServer.TCPServer</span></code></a> constructor. If <em>logRequests</em> is true (the default), requests will be logged; setting this parameter to false will turn off logging. The <em>allow_none</em> and <em>encoding</em> parameters are passed on to <a class="reference internal" href="xmlrpclib.html#module-xmlrpclib" title="xmlrpclib: XML-RPC client access."><code class="xref py py-mod docutils literal notranslate"><span class="pre">xmlrpclib</span></code></a> and control the XML-RPC responses that will be returned from the server. The <em>bind_and_activate</em> parameter controls whether <code class="xref py py-meth docutils literal notranslate"><span class="pre">server_bind()</span></code> and <code class="xref py py-meth docutils literal notranslate"><span class="pre">server_activate()</span></code> are called immediately by the constructor; it defaults to true. Setting it to false allows code to manipulate the <em>allow_reuse_address</em> class variable before the address is bound.</p> <div class="versionchanged"> <p><span class="versionmodified">Changed in version 2.5: </span>The <em>allow_none</em> and <em>encoding</em> parameters were added.</p> </div> <div class="versionchanged"> <p><span class="versionmodified">Changed in version 2.6: </span>The <em>bind_and_activate</em> parameter was added.</p> </div> </dd></dl> <dl class="class"> <dt id="SimpleXMLRPCServer.CGIXMLRPCRequestHandler"> <em class="property">class </em><code class="descclassname">SimpleXMLRPCServer.</code><code class="descname">CGIXMLRPCRequestHandler</code><span class="sig-paren">(</span><span class="optional">[</span><em>allow_none</em><span class="optional">[</span>, <em>encoding</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.CGIXMLRPCRequestHandler" title="Permalink to this definition">¶</a></dt> <dd><p>Create a new instance to handle XML-RPC requests in a CGI environment. The <em>allow_none</em> and <em>encoding</em> parameters are passed on to <a class="reference internal" href="xmlrpclib.html#module-xmlrpclib" title="xmlrpclib: XML-RPC client access."><code class="xref py py-mod docutils literal notranslate"><span class="pre">xmlrpclib</span></code></a> and control the XML-RPC responses that will be returned from the server.</p> <div class="versionadded"> <p><span class="versionmodified">New in version 2.3.</span></p> </div> <div class="versionchanged"> <p><span class="versionmodified">Changed in version 2.5: </span>The <em>allow_none</em> and <em>encoding</em> parameters were added.</p> </div> </dd></dl> <dl class="class"> <dt id="SimpleXMLRPCServer.SimpleXMLRPCRequestHandler"> <em class="property">class </em><code class="descclassname">SimpleXMLRPCServer.</code><code class="descname">SimpleXMLRPCRequestHandler</code><a class="headerlink" href="#SimpleXMLRPCServer.SimpleXMLRPCRequestHandler" title="Permalink to this definition">¶</a></dt> <dd><p>Create a new request handler instance. This request handler supports <code class="docutils literal notranslate"><span class="pre">POST</span></code> requests and modifies logging so that the <em>logRequests</em> parameter to the <a class="reference internal" href="#SimpleXMLRPCServer.SimpleXMLRPCServer" title="SimpleXMLRPCServer.SimpleXMLRPCServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">SimpleXMLRPCServer</span></code></a> constructor parameter is honored.</p> </dd></dl> <div class="section" id="simplexmlrpcserver-objects"> <span id="simple-xmlrpc-servers"></span><h2>20.24.1. SimpleXMLRPCServer Objects<a class="headerlink" href="#simplexmlrpcserver-objects" title="Permalink to this headline">¶</a></h2> <p>The <a class="reference internal" href="#SimpleXMLRPCServer.SimpleXMLRPCServer" title="SimpleXMLRPCServer.SimpleXMLRPCServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">SimpleXMLRPCServer</span></code></a> class is based on <a class="reference internal" href="socketserver.html#SocketServer.TCPServer" title="SocketServer.TCPServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">SocketServer.TCPServer</span></code></a> and provides a means of creating simple, stand alone XML-RPC servers.</p> <dl class="method"> <dt id="SimpleXMLRPCServer.SimpleXMLRPCServer.register_function"> <code class="descclassname">SimpleXMLRPCServer.</code><code class="descname">register_function</code><span class="sig-paren">(</span><em>function</em><span class="optional">[</span>, <em>name</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.SimpleXMLRPCServer.register_function" title="Permalink to this definition">¶</a></dt> <dd><p>Register a function that can respond to XML-RPC requests. If <em>name</em> is given, it will be the method name associated with <em>function</em>, otherwise <code class="docutils literal notranslate"><span class="pre">function.__name__</span></code> will be used. <em>name</em> can be either a normal or Unicode string, and may contain characters not legal in Python identifiers, including the period character.</p> </dd></dl> <dl class="method"> <dt id="SimpleXMLRPCServer.SimpleXMLRPCServer.register_instance"> <code class="descclassname">SimpleXMLRPCServer.</code><code class="descname">register_instance</code><span class="sig-paren">(</span><em>instance</em><span class="optional">[</span>, <em>allow_dotted_names</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.SimpleXMLRPCServer.register_instance" title="Permalink to this definition">¶</a></dt> <dd><p>Register an object which is used to expose method names which have not been registered using <a class="reference internal" href="#SimpleXMLRPCServer.SimpleXMLRPCServer.register_function" title="SimpleXMLRPCServer.SimpleXMLRPCServer.register_function"><code class="xref py py-meth docutils literal notranslate"><span class="pre">register_function()</span></code></a>. If <em>instance</em> contains a <code class="xref py py-meth docutils literal notranslate"><span class="pre">_dispatch()</span></code> method, it is called with the requested method name and the parameters from the request. Its API is <code class="docutils literal notranslate"><span class="pre">def</span> <span class="pre">_dispatch(self,</span> <span class="pre">method,</span> <span class="pre">params)</span></code> (note that <em>params</em> does not represent a variable argument list). If it calls an underlying function to perform its task, that function is called as <code class="docutils literal notranslate"><span class="pre">func(*params)</span></code>, expanding the parameter list. The return value from <code class="xref py py-meth docutils literal notranslate"><span class="pre">_dispatch()</span></code> is returned to the client as the result. If <em>instance</em> does not have a <code class="xref py py-meth docutils literal notranslate"><span class="pre">_dispatch()</span></code> method, it is searched for an attribute matching the name of the requested method.</p> <p>If the optional <em>allow_dotted_names</em> argument is true and the instance does not have a <code class="xref py py-meth docutils literal notranslate"><span class="pre">_dispatch()</span></code> method, then if the requested method name contains periods, each component of the method name is searched for individually, with the effect that a simple hierarchical search is performed. The value found from this search is then called with the parameters from the request, and the return value is passed back to the client.</p> <div class="admonition warning"> <p class="first admonition-title">Warning</p> <p class="last">Enabling the <em>allow_dotted_names</em> option allows intruders to access your module’s global variables and may allow intruders to execute arbitrary code on your machine. Only use this option on a secure, closed network.</p> </div> <div class="versionchanged"> <p><span class="versionmodified">Changed in version 2.3.5,: </span>2.4.1 <em>allow_dotted_names</em> was added to plug a security hole; prior versions are insecure.</p> </div> </dd></dl> <dl class="method"> <dt id="SimpleXMLRPCServer.SimpleXMLRPCServer.register_introspection_functions"> <code class="descclassname">SimpleXMLRPCServer.</code><code class="descname">register_introspection_functions</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.SimpleXMLRPCServer.register_introspection_functions" title="Permalink to this definition">¶</a></dt> <dd><p>Registers the XML-RPC introspection functions <code class="docutils literal notranslate"><span class="pre">system.listMethods</span></code>, <code class="docutils literal notranslate"><span class="pre">system.methodHelp</span></code> and <code class="docutils literal notranslate"><span class="pre">system.methodSignature</span></code>.</p> <div class="versionadded"> <p><span class="versionmodified">New in version 2.3.</span></p> </div> </dd></dl> <dl class="method"> <dt id="SimpleXMLRPCServer.SimpleXMLRPCServer.register_multicall_functions"> <code class="descclassname">SimpleXMLRPCServer.</code><code class="descname">register_multicall_functions</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.SimpleXMLRPCServer.register_multicall_functions" title="Permalink to this definition">¶</a></dt> <dd><p>Registers the XML-RPC multicall function system.multicall.</p> </dd></dl> <dl class="attribute"> <dt id="SimpleXMLRPCServer.SimpleXMLRPCRequestHandler.rpc_paths"> <code class="descclassname">SimpleXMLRPCRequestHandler.</code><code class="descname">rpc_paths</code><a class="headerlink" href="#SimpleXMLRPCServer.SimpleXMLRPCRequestHandler.rpc_paths" title="Permalink to this definition">¶</a></dt> <dd><p>An attribute value that must be a tuple listing valid path portions of the URL for receiving XML-RPC requests. Requests posted to other paths will result in a 404 “no such page” HTTP error. If this tuple is empty, all paths will be considered valid. The default value is <code class="docutils literal notranslate"><span class="pre">('/',</span> <span class="pre">'/RPC2')</span></code>.</p> <div class="versionadded"> <p><span class="versionmodified">New in version 2.5.</span></p> </div> </dd></dl> <dl class="attribute"> <dt id="SimpleXMLRPCServer.SimpleXMLRPCRequestHandler.encode_threshold"> <code class="descclassname">SimpleXMLRPCRequestHandler.</code><code class="descname">encode_threshold</code><a class="headerlink" href="#SimpleXMLRPCServer.SimpleXMLRPCRequestHandler.encode_threshold" title="Permalink to this definition">¶</a></dt> <dd><p>If this attribute is not <code class="docutils literal notranslate"><span class="pre">None</span></code>, responses larger than this value will be encoded using the <em>gzip</em> transfer encoding, if permitted by the client. The default is <code class="docutils literal notranslate"><span class="pre">1400</span></code> which corresponds roughly to a single TCP packet.</p> <div class="versionadded"> <p><span class="versionmodified">New in version 2.7.</span></p> </div> </dd></dl> <div class="section" id="simplexmlrpcserver-example"> <span id="id1"></span><h3>20.24.1.1. SimpleXMLRPCServer Example<a class="headerlink" href="#simplexmlrpcserver-example" title="Permalink to this headline">¶</a></h3> <p>Server code:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">SimpleXMLRPCServer</span> <span class="k">import</span> <span class="n">SimpleXMLRPCServer</span> <span class="kn">from</span> <span class="nn">SimpleXMLRPCServer</span> <span class="k">import</span> <span class="n">SimpleXMLRPCRequestHandler</span> <span class="c1"># Restrict to a particular path.</span> <span class="k">class</span> <span class="nc">RequestHandler</span><span class="p">(</span><span class="n">SimpleXMLRPCRequestHandler</span><span class="p">):</span> <span class="n">rpc_paths</span> <span class="o">=</span> <span class="p">(</span><span class="s1">'/RPC2'</span><span class="p">,)</span> <span class="c1"># Create server</span> <span class="n">server</span> <span class="o">=</span> <span class="n">SimpleXMLRPCServer</span><span class="p">((</span><span class="s2">"localhost"</span><span class="p">,</span> <span class="mi">8000</span><span class="p">),</span> <span class="n">requestHandler</span><span class="o">=</span><span class="n">RequestHandler</span><span class="p">)</span> <span class="n">server</span><span class="o">.</span><span class="n">register_introspection_functions</span><span class="p">()</span> <span class="c1"># Register pow() function; this will use the value of</span> <span class="c1"># pow.__name__ as the name, which is just 'pow'.</span> <span class="n">server</span><span class="o">.</span><span class="n">register_function</span><span class="p">(</span><span class="nb">pow</span><span class="p">)</span> <span class="c1"># Register a function under a different name</span> <span class="k">def</span> <span class="nf">adder_function</span><span class="p">(</span><span class="n">x</span><span class="p">,</span><span class="n">y</span><span class="p">):</span> <span class="k">return</span> <span class="n">x</span> <span class="o">+</span> <span class="n">y</span> <span class="n">server</span><span class="o">.</span><span class="n">register_function</span><span class="p">(</span><span class="n">adder_function</span><span class="p">,</span> <span class="s1">'add'</span><span class="p">)</span> <span class="c1"># Register an instance; all the methods of the instance are</span> <span class="c1"># published as XML-RPC methods (in this case, just 'div').</span> <span class="k">class</span> <span class="nc">MyFuncs</span><span class="p">:</span> <span class="k">def</span> <span class="nf">div</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span> <span class="k">return</span> <span class="n">x</span> <span class="o">//</span> <span class="n">y</span> <span class="n">server</span><span class="o">.</span><span class="n">register_instance</span><span class="p">(</span><span class="n">MyFuncs</span><span class="p">())</span> <span class="c1"># Run the server's main loop</span> <span class="n">server</span><span class="o">.</span><span class="n">serve_forever</span><span class="p">()</span> </pre></div> </div> <p>The following client code will call the methods made available by the preceding server:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">xmlrpclib</span> <span class="n">s</span> <span class="o">=</span> <span class="n">xmlrpclib</span><span class="o">.</span><span class="n">ServerProxy</span><span class="p">(</span><span class="s1">'http://localhost:8000'</span><span class="p">)</span> <span class="nb">print</span> <span class="n">s</span><span class="o">.</span><span class="n">pow</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">)</span> <span class="c1"># Returns 2**3 = 8</span> <span class="nb">print</span> <span class="n">s</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">3</span><span class="p">)</span> <span class="c1"># Returns 5</span> <span class="nb">print</span> <span class="n">s</span><span class="o">.</span><span class="n">div</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span><span class="mi">2</span><span class="p">)</span> <span class="c1"># Returns 5//2 = 2</span> <span class="c1"># Print list of available methods</span> <span class="nb">print</span> <span class="n">s</span><span class="o">.</span><span class="n">system</span><span class="o">.</span><span class="n">listMethods</span><span class="p">()</span> </pre></div> </div> <p>The following <a class="reference internal" href="#SimpleXMLRPCServer.SimpleXMLRPCServer" title="SimpleXMLRPCServer.SimpleXMLRPCServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">SimpleXMLRPCServer</span></code></a> example is included in the module <cite>Lib/SimpleXMLRPCServer.py</cite>:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">server</span> <span class="o">=</span> <span class="n">SimpleXMLRPCServer</span><span class="p">((</span><span class="s2">"localhost"</span><span class="p">,</span> <span class="mi">8000</span><span class="p">))</span> <span class="n">server</span><span class="o">.</span><span class="n">register_function</span><span class="p">(</span><span class="nb">pow</span><span class="p">)</span> <span class="n">server</span><span class="o">.</span><span class="n">register_function</span><span class="p">(</span><span class="k">lambda</span> <span class="n">x</span><span class="p">,</span><span class="n">y</span><span class="p">:</span> <span class="n">x</span><span class="o">+</span><span class="n">y</span><span class="p">,</span> <span class="s1">'add'</span><span class="p">)</span> <span class="n">server</span><span class="o">.</span><span class="n">register_multicall_functions</span><span class="p">()</span> <span class="n">server</span><span class="o">.</span><span class="n">serve_forever</span><span class="p">()</span> </pre></div> </div> <p>This demo server can be run from the command line as:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">python</span> <span class="o">-</span><span class="n">m</span> <span class="n">SimpleXMLRPCServer</span> </pre></div> </div> <p>Example client code which talks to the above server is included with <cite>Lib/xmlrpclib.py</cite>:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">server</span> <span class="o">=</span> <span class="n">ServerProxy</span><span class="p">(</span><span class="s2">"http://localhost:8000"</span><span class="p">)</span> <span class="nb">print</span> <span class="n">server</span> <span class="n">multi</span> <span class="o">=</span> <span class="n">MultiCall</span><span class="p">(</span><span class="n">server</span><span class="p">)</span> <span class="n">multi</span><span class="o">.</span><span class="n">pow</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">9</span><span class="p">)</span> <span class="n">multi</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span> <span class="n">multi</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="mi">24</span><span class="p">,</span> <span class="mi">11</span><span class="p">)</span> <span class="k">try</span><span class="p">:</span> <span class="k">for</span> <span class="n">response</span> <span class="ow">in</span> <span class="n">multi</span><span class="p">():</span> <span class="nb">print</span> <span class="n">response</span> <span class="k">except</span> <span class="n">Error</span><span class="p">,</span> <span class="n">v</span><span class="p">:</span> <span class="nb">print</span> <span class="s2">"ERROR"</span><span class="p">,</span> <span class="n">v</span> </pre></div> </div> <p>And the client can be invoked directly using the following command:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">python</span> <span class="o">-</span><span class="n">m</span> <span class="n">xmlrpclib</span> </pre></div> </div> </div> </div> <div class="section" id="cgixmlrpcrequesthandler"> <h2>20.24.2. CGIXMLRPCRequestHandler<a class="headerlink" href="#cgixmlrpcrequesthandler" title="Permalink to this headline">¶</a></h2> <p>The <a class="reference internal" href="#SimpleXMLRPCServer.CGIXMLRPCRequestHandler" title="SimpleXMLRPCServer.CGIXMLRPCRequestHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">CGIXMLRPCRequestHandler</span></code></a> class can be used to handle XML-RPC requests sent to Python CGI scripts.</p> <dl class="method"> <dt id="SimpleXMLRPCServer.CGIXMLRPCRequestHandler.register_function"> <code class="descclassname">CGIXMLRPCRequestHandler.</code><code class="descname">register_function</code><span class="sig-paren">(</span><em>function</em><span class="optional">[</span>, <em>name</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.CGIXMLRPCRequestHandler.register_function" title="Permalink to this definition">¶</a></dt> <dd><p>Register a function that can respond to XML-RPC requests. If <em>name</em> is given, it will be the method name associated with function, otherwise <em>function.__name__</em> will be used. <em>name</em> can be either a normal or Unicode string, and may contain characters not legal in Python identifiers, including the period character.</p> </dd></dl> <dl class="method"> <dt id="SimpleXMLRPCServer.CGIXMLRPCRequestHandler.register_instance"> <code class="descclassname">CGIXMLRPCRequestHandler.</code><code class="descname">register_instance</code><span class="sig-paren">(</span><em>instance</em><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.CGIXMLRPCRequestHandler.register_instance" title="Permalink to this definition">¶</a></dt> <dd><p>Register an object which is used to expose method names which have not been registered using <a class="reference internal" href="#SimpleXMLRPCServer.CGIXMLRPCRequestHandler.register_function" title="SimpleXMLRPCServer.CGIXMLRPCRequestHandler.register_function"><code class="xref py py-meth docutils literal notranslate"><span class="pre">register_function()</span></code></a>. If instance contains a <code class="xref py py-meth docutils literal notranslate"><span class="pre">_dispatch()</span></code> method, it is called with the requested method name and the parameters from the request; the return value is returned to the client as the result. If instance does not have a <code class="xref py py-meth docutils literal notranslate"><span class="pre">_dispatch()</span></code> method, it is searched for an attribute matching the name of the requested method; if the requested method name contains periods, each component of the method name is searched for individually, with the effect that a simple hierarchical search is performed. The value found from this search is then called with the parameters from the request, and the return value is passed back to the client.</p> </dd></dl> <dl class="method"> <dt id="SimpleXMLRPCServer.CGIXMLRPCRequestHandler.register_introspection_functions"> <code class="descclassname">CGIXMLRPCRequestHandler.</code><code class="descname">register_introspection_functions</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.CGIXMLRPCRequestHandler.register_introspection_functions" title="Permalink to this definition">¶</a></dt> <dd><p>Register the XML-RPC introspection functions <code class="docutils literal notranslate"><span class="pre">system.listMethods</span></code>, <code class="docutils literal notranslate"><span class="pre">system.methodHelp</span></code> and <code class="docutils literal notranslate"><span class="pre">system.methodSignature</span></code>.</p> </dd></dl> <dl class="method"> <dt id="SimpleXMLRPCServer.CGIXMLRPCRequestHandler.register_multicall_functions"> <code class="descclassname">CGIXMLRPCRequestHandler.</code><code class="descname">register_multicall_functions</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.CGIXMLRPCRequestHandler.register_multicall_functions" title="Permalink to this definition">¶</a></dt> <dd><p>Register the XML-RPC multicall function <code class="docutils literal notranslate"><span class="pre">system.multicall</span></code>.</p> </dd></dl> <dl class="method"> <dt id="SimpleXMLRPCServer.CGIXMLRPCRequestHandler.handle_request"> <code class="descclassname">CGIXMLRPCRequestHandler.</code><code class="descname">handle_request</code><span class="sig-paren">(</span><span class="optional">[</span><em>request_text = None</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#SimpleXMLRPCServer.CGIXMLRPCRequestHandler.handle_request" title="Permalink to this definition">¶</a></dt> <dd><p>Handle an XML-RPC request. If <em>request_text</em> is given, it should be the POST data provided by the HTTP server, otherwise the contents of stdin will be used.</p> </dd></dl> <p>Example:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">class</span> <span class="nc">MyFuncs</span><span class="p">:</span> <span class="k">def</span> <span class="nf">div</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span> <span class="k">return</span> <span class="n">x</span> <span class="o">//</span> <span class="n">y</span> <span class="n">handler</span> <span class="o">=</span> <span class="n">CGIXMLRPCRequestHandler</span><span class="p">()</span> <span class="n">handler</span><span class="o">.</span><span class="n">register_function</span><span class="p">(</span><span class="nb">pow</span><span class="p">)</span> <span class="n">handler</span><span class="o">.</span><span class="n">register_function</span><span class="p">(</span><span class="k">lambda</span> <span class="n">x</span><span class="p">,</span><span class="n">y</span><span class="p">:</span> <span class="n">x</span><span class="o">+</span><span class="n">y</span><span class="p">,</span> <span class="s1">'add'</span><span class="p">)</span> <span class="n">handler</span><span class="o">.</span><span class="n">register_introspection_functions</span><span class="p">()</span> <span class="n">handler</span><span class="o">.</span><span class="n">register_instance</span><span class="p">(</span><span class="n">MyFuncs</span><span class="p">())</span> <span class="n">handler</span><span class="o">.</span><span class="n">handle_request</span><span class="p">()</span> </pre></div> </div> </div> </div> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h3><a href="../contents.html">Table Of Contents</a></h3> <ul> <li><a class="reference internal" href="#">20.24. <code class="docutils literal notranslate"><span class="pre">SimpleXMLRPCServer</span></code> — Basic XML-RPC server</a><ul> <li><a class="reference internal" href="#simplexmlrpcserver-objects">20.24.1. SimpleXMLRPCServer Objects</a><ul> <li><a class="reference internal" href="#simplexmlrpcserver-example">20.24.1.1. SimpleXMLRPCServer Example</a></li> </ul> </li> <li><a class="reference internal" href="#cgixmlrpcrequesthandler">20.24.2. 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