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Internet Protocols and Support</a> &#187;</li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <div class="section" id="module-BaseHTTPServer"> <span id="basehttpserver-basic-http-server"></span><h1>20.18. <a class="reference internal" href="#module-BaseHTTPServer" title="BaseHTTPServer: Basic HTTP server (base class for SimpleHTTPServer and CGIHTTPServer)."><code class="xref py py-mod docutils literal notranslate"><span class="pre">BaseHTTPServer</span></code></a> — Basic HTTP server<a class="headerlink" href="#module-BaseHTTPServer" 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-BaseHTTPServer" title="BaseHTTPServer: Basic HTTP server (base class for SimpleHTTPServer and CGIHTTPServer)."><code class="xref py py-mod docutils literal notranslate"><span class="pre">BaseHTTPServer</span></code></a> module has been merged into <code class="xref py py-mod docutils literal notranslate"><span class="pre">http.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> <p id="index-0"><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/2.7/Lib/BaseHTTPServer.py">Lib/BaseHTTPServer.py</a></p> <hr class="docutils" /> <p>This module defines two classes for implementing HTTP servers (Web servers). Usually, this module isn’t used directly, but is used as a basis for building functioning Web servers. See the <a class="reference internal" href="simplehttpserver.html#module-SimpleHTTPServer" title="SimpleHTTPServer: This module provides a basic request handler for HTTP servers."><code class="xref py py-mod docutils literal notranslate"><span class="pre">SimpleHTTPServer</span></code></a> and <a class="reference internal" href="cgihttpserver.html#module-CGIHTTPServer" title="CGIHTTPServer: This module provides a request handler for HTTP servers which can run CGI scripts."><code class="xref py py-mod docutils literal notranslate"><span class="pre">CGIHTTPServer</span></code></a> modules.</p> <p>The first class, <a class="reference internal" href="#BaseHTTPServer.HTTPServer" title="BaseHTTPServer.HTTPServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">HTTPServer</span></code></a>, is a <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> subclass, and therefore implements the <a class="reference internal" href="socketserver.html#SocketServer.BaseServer" title="SocketServer.BaseServer"><code class="xref py py-class docutils literal notranslate"><span class="pre">SocketServer.BaseServer</span></code></a> interface. It creates and listens at the HTTP socket, dispatching the requests to a handler. Code to create and run the server looks like this:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">run</span><span class="p">(</span><span class="n">server_class</span><span class="o">=</span><span class="n">BaseHTTPServer</span><span class="o">.</span><span class="n">HTTPServer</span><span class="p">,</span> <span class="n">handler_class</span><span class="o">=</span><span class="n">BaseHTTPServer</span><span class="o">.</span><span class="n">BaseHTTPRequestHandler</span><span class="p">):</span> <span class="n">server_address</span> <span class="o">=</span> <span class="p">(</span><span class="s1">&#39;&#39;</span><span class="p">,</span> <span class="mi">8000</span><span class="p">)</span> <span class="n">httpd</span> <span class="o">=</span> <span class="n">server_class</span><span class="p">(</span><span class="n">server_address</span><span class="p">,</span> <span class="n">handler_class</span><span class="p">)</span> <span class="n">httpd</span><span class="o">.</span><span class="n">serve_forever</span><span class="p">()</span> </pre></div> </div> <dl class="class"> <dt id="BaseHTTPServer.HTTPServer"> <em class="property">class </em><code class="descclassname">BaseHTTPServer.</code><code class="descname">HTTPServer</code><span class="sig-paren">(</span><em>server_address</em>, <em>RequestHandlerClass</em><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.HTTPServer" title="Permalink to this definition">¶</a></dt> <dd><p>This class builds on the <code class="xref py py-class docutils literal notranslate"><span class="pre">TCPServer</span></code> class by storing the server address as instance variables named <code class="xref py py-attr docutils literal notranslate"><span class="pre">server_name</span></code> and <code class="xref py py-attr docutils literal notranslate"><span class="pre">server_port</span></code>. The server is accessible by the handler, typically through the handler’s <code class="xref py py-attr docutils literal notranslate"><span class="pre">server</span></code> instance variable.</p> </dd></dl> <dl class="class"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler"> <em class="property">class </em><code class="descclassname">BaseHTTPServer.</code><code class="descname">BaseHTTPRequestHandler</code><span class="sig-paren">(</span><em>request</em>, <em>client_address</em>, <em>server</em><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler" title="Permalink to this definition">¶</a></dt> <dd><p>This class is used to handle the HTTP requests that arrive at the server. By itself, it cannot respond to any actual HTTP requests; it must be subclassed to handle each request method (e.g. GET or POST). <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler" title="BaseHTTPServer.BaseHTTPRequestHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">BaseHTTPRequestHandler</span></code></a> provides a number of class and instance variables, and methods for use by subclasses.</p> <p>The handler will parse the request and the headers, then call a method specific to the request type. The method name is constructed from the request. For example, for the request method <code class="docutils literal notranslate"><span class="pre">SPAM</span></code>, the <code class="xref py py-meth docutils literal notranslate"><span class="pre">do_SPAM()</span></code> method will be called with no arguments. All of the relevant information is stored in instance variables of the handler. Subclasses should not need to override or extend the <a class="reference internal" href="../reference/datamodel.html#object.__init__" title="object.__init__"><code class="xref py py-meth docutils literal notranslate"><span class="pre">__init__()</span></code></a> method.</p> <p><a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler" title="BaseHTTPServer.BaseHTTPRequestHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">BaseHTTPRequestHandler</span></code></a> has the following instance variables:</p> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.client_address"> <code class="descname">client_address</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.client_address" title="Permalink to this definition">¶</a></dt> <dd><p>Contains a tuple of the form <code class="docutils literal notranslate"><span class="pre">(host,</span> <span class="pre">port)</span></code> referring to the client’s address.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.server"> <code class="descname">server</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.server" title="Permalink to this definition">¶</a></dt> <dd><p>Contains the server instance.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.command"> <code class="descname">command</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.command" title="Permalink to this definition">¶</a></dt> <dd><p>Contains the command (request type). For example, <code class="docutils literal notranslate"><span class="pre">'GET'</span></code>.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.path"> <code class="descname">path</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.path" title="Permalink to this definition">¶</a></dt> <dd><p>Contains the request path.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.request_version"> <code class="descname">request_version</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.request_version" title="Permalink to this definition">¶</a></dt> <dd><p>Contains the version string from the request. For example, <code class="docutils literal notranslate"><span class="pre">'HTTP/1.0'</span></code>.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.headers"> <code class="descname">headers</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.headers" title="Permalink to this definition">¶</a></dt> <dd><p>Holds an instance of the class specified by the <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.MessageClass" title="BaseHTTPServer.BaseHTTPRequestHandler.MessageClass"><code class="xref py py-attr docutils literal notranslate"><span class="pre">MessageClass</span></code></a> class variable. This instance parses and manages the headers in the HTTP request.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.rfile"> <code class="descname">rfile</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.rfile" title="Permalink to this definition">¶</a></dt> <dd><p>Contains an input stream, positioned at the start of the optional input data.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.wfile"> <code class="descname">wfile</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.wfile" title="Permalink to this definition">¶</a></dt> <dd><p>Contains the output stream for writing a response back to the client. Proper adherence to the HTTP protocol must be used when writing to this stream.</p> </dd></dl> <p><a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler" title="BaseHTTPServer.BaseHTTPRequestHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">BaseHTTPRequestHandler</span></code></a> has the following class variables:</p> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.server_version"> <code class="descname">server_version</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.server_version" title="Permalink to this definition">¶</a></dt> <dd><p>Specifies the server software version. You may want to override this. The format is multiple whitespace-separated strings, where each string is of the form name[/version]. For example, <code class="docutils literal notranslate"><span class="pre">'BaseHTTP/0.2'</span></code>.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.sys_version"> <code class="descname">sys_version</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.sys_version" title="Permalink to this definition">¶</a></dt> <dd><p>Contains the Python system version, in a form usable by the <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.version_string" title="BaseHTTPServer.BaseHTTPRequestHandler.version_string"><code class="xref py py-attr docutils literal notranslate"><span class="pre">version_string</span></code></a> method and the <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.server_version" title="BaseHTTPServer.BaseHTTPRequestHandler.server_version"><code class="xref py py-attr docutils literal notranslate"><span class="pre">server_version</span></code></a> class variable. For example, <code class="docutils literal notranslate"><span class="pre">'Python/1.4'</span></code>.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.error_message_format"> <code class="descname">error_message_format</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.error_message_format" title="Permalink to this definition">¶</a></dt> <dd><p>Specifies a format string for building an error response to the client. It uses parenthesized, keyed format specifiers, so the format operand must be a dictionary. The <em>code</em> key should be an integer, specifying the numeric HTTP error code value. <em>message</em> should be a string containing a (detailed) error message of what occurred, and <em>explain</em> should be an explanation of the error code number. Default <em>message</em> and <em>explain</em> values can found in the <em>responses</em> class variable.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.error_content_type"> <code class="descname">error_content_type</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.error_content_type" title="Permalink to this definition">¶</a></dt> <dd><p>Specifies the Content-Type HTTP header of error responses sent to the client. The default value is <code class="docutils literal notranslate"><span class="pre">'text/html'</span></code>.</p> <div class="versionadded"> <p><span class="versionmodified">New in version 2.6: </span>Previously, the content type was always <code class="docutils literal notranslate"><span class="pre">'text/html'</span></code>.</p> </div> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.protocol_version"> <code class="descname">protocol_version</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.protocol_version" title="Permalink to this definition">¶</a></dt> <dd><p>This specifies the HTTP protocol version used in responses. If set to <code class="docutils literal notranslate"><span class="pre">'HTTP/1.1'</span></code>, the server will permit HTTP persistent connections; however, your server <em>must</em> then include an accurate <code class="docutils literal notranslate"><span class="pre">Content-Length</span></code> header (using <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.send_header" title="BaseHTTPServer.BaseHTTPRequestHandler.send_header"><code class="xref py py-meth docutils literal notranslate"><span class="pre">send_header()</span></code></a>) in all of its responses to clients. For backwards compatibility, the setting defaults to <code class="docutils literal notranslate"><span class="pre">'HTTP/1.0'</span></code>.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.MessageClass"> <code class="descname">MessageClass</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.MessageClass" title="Permalink to this definition">¶</a></dt> <dd><p id="index-1">Specifies a <a class="reference internal" href="rfc822.html#rfc822.Message" title="rfc822.Message"><code class="xref py py-class docutils literal notranslate"><span class="pre">rfc822.Message</span></code></a>-like class to parse HTTP headers. Typically, this is not overridden, and it defaults to <a class="reference internal" href="mimetools.html#mimetools.Message" title="mimetools.Message"><code class="xref py py-class docutils literal notranslate"><span class="pre">mimetools.Message</span></code></a>.</p> </dd></dl> <dl class="attribute"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.responses"> <code class="descname">responses</code><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.responses" title="Permalink to this definition">¶</a></dt> <dd><p>This variable contains a mapping of error code integers to two-element tuples containing a short and long message. For example, <code class="docutils literal notranslate"><span class="pre">{code:</span> <span class="pre">(shortmessage,</span> <span class="pre">longmessage)}</span></code>. The <em>shortmessage</em> is usually used as the <em>message</em> key in an error response, and <em>longmessage</em> as the <em>explain</em> key (see the <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.error_message_format" title="BaseHTTPServer.BaseHTTPRequestHandler.error_message_format"><code class="xref py py-attr docutils literal notranslate"><span class="pre">error_message_format</span></code></a> class variable).</p> </dd></dl> <p>A <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler" title="BaseHTTPServer.BaseHTTPRequestHandler"><code class="xref py py-class docutils literal notranslate"><span class="pre">BaseHTTPRequestHandler</span></code></a> instance has the following methods:</p> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.handle"> <code class="descname">handle</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.handle" title="Permalink to this definition">¶</a></dt> <dd><p>Calls <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.handle_one_request" title="BaseHTTPServer.BaseHTTPRequestHandler.handle_one_request"><code class="xref py py-meth docutils literal notranslate"><span class="pre">handle_one_request()</span></code></a> once (or, if persistent connections are enabled, multiple times) to handle incoming HTTP requests. You should never need to override it; instead, implement appropriate <code class="xref py py-meth docutils literal notranslate"><span class="pre">do_*()</span></code> methods.</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.handle_one_request"> <code class="descname">handle_one_request</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.handle_one_request" title="Permalink to this definition">¶</a></dt> <dd><p>This method will parse and dispatch the request to the appropriate <code class="xref py py-meth docutils literal notranslate"><span class="pre">do_*()</span></code> method. You should never need to override it.</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.send_error"> <code class="descname">send_error</code><span class="sig-paren">(</span><em>code</em><span class="optional">[</span>, <em>message</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.send_error" title="Permalink to this definition">¶</a></dt> <dd><p>Sends and logs a complete error reply to the client. The numeric <em>code</em> specifies the HTTP error code, with <em>message</em> as optional, more specific text. A complete set of headers is sent, followed by text composed using the <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.error_message_format" title="BaseHTTPServer.BaseHTTPRequestHandler.error_message_format"><code class="xref py py-attr docutils literal notranslate"><span class="pre">error_message_format</span></code></a> class variable. The body will be empty if the method is HEAD or the response code is one of the following: <code class="docutils literal notranslate"><span class="pre">1xx</span></code>, <code class="docutils literal notranslate"><span class="pre">204</span> <span class="pre">No</span> <span class="pre">Content</span></code>, <code class="docutils literal notranslate"><span class="pre">205</span> <span class="pre">Reset</span> <span class="pre">Content</span></code>, <code class="docutils literal notranslate"><span class="pre">304</span> <span class="pre">Not</span> <span class="pre">Modified</span></code>.</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.send_response"> <code class="descname">send_response</code><span class="sig-paren">(</span><em>code</em><span class="optional">[</span>, <em>message</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.send_response" title="Permalink to this definition">¶</a></dt> <dd><p>Sends a response header and logs the accepted request. The HTTP response line is sent, followed by <em>Server</em> and <em>Date</em> headers. The values for these two headers are picked up from the <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.version_string" title="BaseHTTPServer.BaseHTTPRequestHandler.version_string"><code class="xref py py-meth docutils literal notranslate"><span class="pre">version_string()</span></code></a> and <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.date_time_string" title="BaseHTTPServer.BaseHTTPRequestHandler.date_time_string"><code class="xref py py-meth docutils literal notranslate"><span class="pre">date_time_string()</span></code></a> methods, respectively.</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.send_header"> <code class="descname">send_header</code><span class="sig-paren">(</span><em>keyword</em>, <em>value</em><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.send_header" title="Permalink to this definition">¶</a></dt> <dd><p>Writes a specific HTTP header to the output stream. <em>keyword</em> should specify the header keyword, with <em>value</em> specifying its value.</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.end_headers"> <code class="descname">end_headers</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.end_headers" title="Permalink to this definition">¶</a></dt> <dd><p>Sends a blank line, indicating the end of the HTTP headers in the response.</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.log_request"> <code class="descname">log_request</code><span class="sig-paren">(</span><span class="optional">[</span><em>code</em><span class="optional">[</span>, <em>size</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.log_request" title="Permalink to this definition">¶</a></dt> <dd><p>Logs an accepted (successful) request. <em>code</em> should specify the numeric HTTP code associated with the response. If a size of the response is available, then it should be passed as the <em>size</em> parameter.</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.log_error"> <code class="descname">log_error</code><span class="sig-paren">(</span><em>...</em><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.log_error" title="Permalink to this definition">¶</a></dt> <dd><p>Logs an error when a request cannot be fulfilled. By default, it passes the message to <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.log_message" title="BaseHTTPServer.BaseHTTPRequestHandler.log_message"><code class="xref py py-meth docutils literal notranslate"><span class="pre">log_message()</span></code></a>, so it takes the same arguments (<em>format</em> and additional values).</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.log_message"> <code class="descname">log_message</code><span class="sig-paren">(</span><em>format</em>, <em>...</em><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.log_message" title="Permalink to this definition">¶</a></dt> <dd><p>Logs an arbitrary message to <code class="docutils literal notranslate"><span class="pre">sys.stderr</span></code>. This is typically overridden to create custom error logging mechanisms. The <em>format</em> argument is a standard printf-style format string, where the additional arguments to <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.log_message" title="BaseHTTPServer.BaseHTTPRequestHandler.log_message"><code class="xref py py-meth docutils literal notranslate"><span class="pre">log_message()</span></code></a> are applied as inputs to the formatting. The client ip address and current date and time are prefixed to every message logged.</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.version_string"> <code class="descname">version_string</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.version_string" title="Permalink to this definition">¶</a></dt> <dd><p>Returns the server software’s version string. This is a combination of the <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.server_version" title="BaseHTTPServer.BaseHTTPRequestHandler.server_version"><code class="xref py py-attr docutils literal notranslate"><span class="pre">server_version</span></code></a> and <a class="reference internal" href="#BaseHTTPServer.BaseHTTPRequestHandler.sys_version" title="BaseHTTPServer.BaseHTTPRequestHandler.sys_version"><code class="xref py py-attr docutils literal notranslate"><span class="pre">sys_version</span></code></a> class variables.</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.date_time_string"> <code class="descname">date_time_string</code><span class="sig-paren">(</span><span class="optional">[</span><em>timestamp</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.date_time_string" title="Permalink to this definition">¶</a></dt> <dd><p>Returns the date and time given by <em>timestamp</em> (which must be in the format returned by <a class="reference internal" href="time.html#time.time" title="time.time"><code class="xref py py-func docutils literal notranslate"><span class="pre">time.time()</span></code></a>), formatted for a message header. If <em>timestamp</em> is omitted, it uses the current date and time.</p> <p>The result looks like <code class="docutils literal notranslate"><span class="pre">'Sun,</span> <span class="pre">06</span> <span class="pre">Nov</span> <span class="pre">1994</span> <span class="pre">08:49:37</span> <span class="pre">GMT'</span></code>.</p> <div class="versionadded"> <p><span class="versionmodified">New in version 2.5: </span>The <em>timestamp</em> parameter.</p> </div> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.log_date_time_string"> <code class="descname">log_date_time_string</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.log_date_time_string" title="Permalink to this definition">¶</a></dt> <dd><p>Returns the current date and time, formatted for logging.</p> </dd></dl> <dl class="method"> <dt id="BaseHTTPServer.BaseHTTPRequestHandler.address_string"> <code class="descname">address_string</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#BaseHTTPServer.BaseHTTPRequestHandler.address_string" title="Permalink to this definition">¶</a></dt> <dd><p>Returns the client address, formatted for logging. A name lookup is performed on the client’s IP address.</p> </dd></dl> </dd></dl> <div class="section" id="more-examples"> <h2>20.18.1. More examples<a class="headerlink" href="#more-examples" title="Permalink to this headline">¶</a></h2> <p>To create a server that doesn’t run forever, but until some condition is fulfilled:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="k">def</span> <span class="nf">run_while_true</span><span class="p">(</span><span class="n">server_class</span><span class="o">=</span><span class="n">BaseHTTPServer</span><span class="o">.</span><span class="n">HTTPServer</span><span class="p">,</span> <span class="n">handler_class</span><span class="o">=</span><span class="n">BaseHTTPServer</span><span class="o">.</span><span class="n">BaseHTTPRequestHandler</span><span class="p">):</span> <span class="sd">&quot;&quot;&quot;</span> <span class="sd"> This assumes that keep_running() is a function of no arguments which</span> <span class="sd"> is tested initially and after each request. If its return value</span> <span class="sd"> is true, the server continues.</span> <span class="sd"> &quot;&quot;&quot;</span> <span class="n">server_address</span> <span class="o">=</span> <span class="p">(</span><span class="s1">&#39;&#39;</span><span class="p">,</span> <span class="mi">8000</span><span class="p">)</span> <span class="n">httpd</span> <span class="o">=</span> <span class="n">server_class</span><span class="p">(</span><span class="n">server_address</span><span class="p">,</span> <span class="n">handler_class</span><span class="p">)</span> <span class="k">while</span> <span class="n">keep_running</span><span class="p">():</span> <span class="n">httpd</span><span class="o">.</span><span class="n">handle_request</span><span class="p">()</span> </pre></div> </div> <div class="admonition seealso"> <p class="first admonition-title">See also</p> <dl class="last docutils"> <dt>Module <a class="reference internal" href="cgihttpserver.html#module-CGIHTTPServer" title="CGIHTTPServer: This module provides a request handler for HTTP servers which can run CGI scripts."><code class="xref py py-mod docutils literal notranslate"><span class="pre">CGIHTTPServer</span></code></a></dt> <dd>Extended request handler that supports CGI scripts.</dd> <dt>Module <a class="reference internal" href="simplehttpserver.html#module-SimpleHTTPServer" title="SimpleHTTPServer: This module provides a basic request handler for HTTP servers."><code class="xref py py-mod docutils literal notranslate"><span class="pre">SimpleHTTPServer</span></code></a></dt> <dd>Basic request handler that limits response to files actually under the document root.</dd> </dl> </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="#">20.18. <code class="docutils literal notranslate"><span class="pre">BaseHTTPServer</span></code> — Basic HTTP server</a><ul> <li><a class="reference internal" href="#more-examples">20.18.1. More examples</a></li> </ul> </li> </ul> <h4>Previous topic</h4> <p class="topless"><a href="socketserver.html" title="previous chapter">20.17. <code class="docutils literal notranslate"><span class="pre">SocketServer</span></code> — A framework for network servers</a></p> <h4>Next topic</h4> <p class="topless"><a href="simplehttpserver.html" title="next chapter">20.19. <code class="docutils literal notranslate"><span class="pre">SimpleHTTPServer</span></code> — Simple HTTP request handler</a></p> <div role="note" aria-label="source link"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../_sources/library/basehttpserver.rst.txt" rel="nofollow">Show Source</a></li> </ul> </div> <div id="searchbox" style="display: none" role="search"> <h3>Quick search</h3> <div class="searchformwrapper"> <form class="search" action="../search.html" method="get"> <input type="text" name="q" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <div class="clearer"></div> </div> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" >index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="simplehttpserver.html" title="20.19. 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