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<div class="section" id="module-SimpleHTTPServer">
<h1>20.19. <tt class="xref docutils literal"><span class="pre">SimpleHTTPServer</span></tt> — Simple HTTP request handler<a class="headerlink" href="#module-SimpleHTTPServer" title="Permalink to this headline">¶</a></h1>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">The <tt class="xref docutils literal"><span class="pre">SimpleHTTPServer</span></tt> module has been merged into <tt class="xref docutils literal"><span class="pre">http.server</span></tt> in
Python 3.0. The <a class="reference external" href="../glossary.html#term-to3"><em class="xref">2to3</em></a> tool will automatically adapt imports when
converting your sources to 3.0.</p>
</div>
<p>The <tt class="xref docutils literal"><span class="pre">SimpleHTTPServer</span></tt> module defines a single class,
<a title="SimpleHTTPServer.SimpleHTTPRequestHandler" class="reference internal" href="#SimpleHTTPServer.SimpleHTTPRequestHandler"><tt class="xref docutils literal"><span class="pre">SimpleHTTPRequestHandler</span></tt></a>, which is interface-compatible with
<a title="BaseHTTPServer.BaseHTTPRequestHandler" class="reference external" href="basehttpserver.html#BaseHTTPServer.BaseHTTPRequestHandler"><tt class="xref docutils literal"><span class="pre">BaseHTTPServer.BaseHTTPRequestHandler</span></tt></a>.</p>
<p>The <tt class="xref docutils literal"><span class="pre">SimpleHTTPServer</span></tt> module defines the following class:</p>
<dl class="class">
<dt id="SimpleHTTPServer.SimpleHTTPRequestHandler">
<em class="property">class </em><tt class="descclassname">SimpleHTTPServer.</tt><tt class="descname">SimpleHTTPRequestHandler</tt><big>(</big><em>request</em>, <em>client_address</em>, <em>server</em><big>)</big><a class="headerlink" href="#SimpleHTTPServer.SimpleHTTPRequestHandler" title="Permalink to this definition">¶</a></dt>
<dd><p>This class serves files from the current directory and below, directly
mapping the directory structure to HTTP requests.</p>
<p>A lot of the work, such as parsing the request, is done by the base class
<a title="BaseHTTPServer.BaseHTTPRequestHandler" class="reference external" href="basehttpserver.html#BaseHTTPServer.BaseHTTPRequestHandler"><tt class="xref docutils literal"><span class="pre">BaseHTTPServer.BaseHTTPRequestHandler</span></tt></a>. This class implements the
<a title="SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET" class="reference internal" href="#SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET"><tt class="xref docutils literal"><span class="pre">do_GET()</span></tt></a> and <a title="SimpleHTTPServer.SimpleHTTPRequestHandler.do_HEAD" class="reference internal" href="#SimpleHTTPServer.SimpleHTTPRequestHandler.do_HEAD"><tt class="xref docutils literal"><span class="pre">do_HEAD()</span></tt></a> functions.</p>
<p>The following are defined as class-level attributes of
<a title="SimpleHTTPServer.SimpleHTTPRequestHandler" class="reference internal" href="#SimpleHTTPServer.SimpleHTTPRequestHandler"><tt class="xref docutils literal"><span class="pre">SimpleHTTPRequestHandler</span></tt></a>:</p>
<dl class="attribute">
<dt id="SimpleHTTPServer.SimpleHTTPRequestHandler.server_version">
<tt class="descname">server_version</tt><a class="headerlink" href="#SimpleHTTPServer.SimpleHTTPRequestHandler.server_version" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<p>This will be <tt class="docutils literal"><span class="pre">"SimpleHTTP/"</span> <span class="pre">+</span> <span class="pre">__version__</span></tt>, where <tt class="docutils literal"><span class="pre">__version__</span></tt> is
defined at the module level.</p>
<dl class="attribute">
<dt id="SimpleHTTPServer.SimpleHTTPRequestHandler.extensions_map">
<tt class="descname">extensions_map</tt><a class="headerlink" href="#SimpleHTTPServer.SimpleHTTPRequestHandler.extensions_map" title="Permalink to this definition">¶</a></dt>
<dd>A dictionary mapping suffixes into MIME types. The default is
signified by an empty string, and is considered to be
<tt class="docutils literal"><span class="pre">application/octet-stream</span></tt>. The mapping is used case-insensitively,
and so should contain only lower-cased keys.</dd></dl>
<p>The <a title="SimpleHTTPServer.SimpleHTTPRequestHandler" class="reference internal" href="#SimpleHTTPServer.SimpleHTTPRequestHandler"><tt class="xref docutils literal"><span class="pre">SimpleHTTPRequestHandler</span></tt></a> class defines the following methods:</p>
<dl class="method">
<dt id="SimpleHTTPServer.SimpleHTTPRequestHandler.do_HEAD">
<tt class="descname">do_HEAD</tt><big>(</big><big>)</big><a class="headerlink" href="#SimpleHTTPServer.SimpleHTTPRequestHandler.do_HEAD" title="Permalink to this definition">¶</a></dt>
<dd>This method serves the <tt class="docutils literal"><span class="pre">'HEAD'</span></tt> request type: it sends the headers it
would send for the equivalent <tt class="docutils literal"><span class="pre">GET</span></tt> request. See the <a title="SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET" class="reference internal" href="#SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET"><tt class="xref docutils literal"><span class="pre">do_GET()</span></tt></a>
method for a more complete explanation of the possible headers.</dd></dl>
<dl class="method">
<dt id="SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET">
<tt class="descname">do_GET</tt><big>(</big><big>)</big><a class="headerlink" href="#SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET" title="Permalink to this definition">¶</a></dt>
<dd><p>The request is mapped to a local file by interpreting the request as a
path relative to the current working directory.</p>
<p>If the request was mapped to a directory, the directory is checked for a
file named <tt class="docutils literal"><span class="pre">index.html</span></tt> or <tt class="docutils literal"><span class="pre">index.htm</span></tt> (in that order). If found, the
file’s contents are returned; otherwise a directory listing is generated
by calling the <tt class="xref docutils literal"><span class="pre">list_directory()</span></tt> method. This method uses
<a title="os.listdir" class="reference external" href="os.html#os.listdir"><tt class="xref docutils literal"><span class="pre">os.listdir()</span></tt></a> to scan the directory, and returns a <tt class="docutils literal"><span class="pre">404</span></tt> error
response if the <tt class="xref docutils literal"><span class="pre">listdir()</span></tt> fails.</p>
<p>If the request was mapped to a file, it is opened and the contents are
returned. Any <a title="exceptions.IOError" class="reference external" href="exceptions.html#exceptions.IOError"><tt class="xref docutils literal"><span class="pre">IOError</span></tt></a> exception in opening the requested file is
mapped to a <tt class="docutils literal"><span class="pre">404</span></tt>, <tt class="docutils literal"><span class="pre">'File</span> <span class="pre">not</span> <span class="pre">found'</span></tt> error. Otherwise, the content
type is guessed by calling the <tt class="xref docutils literal"><span class="pre">guess_type()</span></tt> method, which in turn
uses the <em>extensions_map</em> variable.</p>
<p>A <tt class="docutils literal"><span class="pre">'Content-type:'</span></tt> header with the guessed content type is output,
followed by a <tt class="docutils literal"><span class="pre">'Content-Length:'</span></tt> header with the file’s size and a
<tt class="docutils literal"><span class="pre">'Last-Modified:'</span></tt> header with the file’s modification time.</p>
<p>Then follows a blank line signifying the end of the headers, and then the
contents of the file are output. If the file’s MIME type starts with
<tt class="docutils literal"><span class="pre">text/</span></tt> the file is opened in text mode; otherwise binary mode is used.</p>
<p>The <tt class="xref docutils literal"><span class="pre">test()</span></tt> function in the <tt class="xref docutils literal"><span class="pre">SimpleHTTPServer</span></tt> module is an
example which creates a server using the
<a title="SimpleHTTPServer.SimpleHTTPRequestHandler" class="reference internal" href="#SimpleHTTPServer.SimpleHTTPRequestHandler"><tt class="xref docutils literal"><span class="pre">SimpleHTTPRequestHandler</span></tt></a> as the Handler.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.5: </span>The <tt class="docutils literal"><span class="pre">'Last-Modified'</span></tt> header.</p>
</dd></dl>
</dd></dl>
<p>The <tt class="xref docutils literal"><span class="pre">SimpleHTTPServer</span></tt> module can be used the following manner in order to
set up a very basic web server serving files relative to the current
directory.:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">SimpleHTTPServer</span>
<span class="kn">import</span> <span class="nn">SocketServer</span>
<span class="n">PORT</span> <span class="o">=</span> <span class="mi">8000</span>
<span class="n">Handler</span> <span class="o">=</span> <span class="n">SimpleHTTPServer</span><span class="o">.</span><span class="n">SimpleHTTPRequestHandler</span>
<span class="n">httpd</span> <span class="o">=</span> <span class="n">SocketServer</span><span class="o">.</span><span class="n">TCPServer</span><span class="p">((</span><span class="s">""</span><span class="p">,</span> <span class="n">PORT</span><span class="p">),</span> <span class="n">Handler</span><span class="p">)</span>
<span class="k">print</span> <span class="s">"serving at port"</span><span class="p">,</span> <span class="n">PORT</span>
<span class="n">httpd</span><span class="o">.</span><span class="n">serve_forever</span><span class="p">()</span>
</pre></div>
</div>
<p><tt class="xref docutils literal"><span class="pre">SimpleHTTPServer</span></tt> module can also be invoked directly using the <tt class="docutils literal"><span class="pre">-m</span></tt>
switch of interpreter with a <tt class="docutils literal"><span class="pre">port</span> <span class="pre">number</span></tt> argument. Similar to previous
example, this serves the files relative to the current directory.:</p>
<div class="highlight-python"><pre>python -m SimpleHTTPServer 8000</pre>
</div>
<div class="admonition-see-also admonition seealso">
<p class="first admonition-title">See also</p>
<dl class="last docutils">
<dt>Module <a title="Basic HTTP server (base class for SimpleHTTPServer and CGIHTTPServer)." class="reference external" href="basehttpserver.html#module-BaseHTTPServer"><tt class="xref docutils literal"><span class="pre">BaseHTTPServer</span></tt></a></dt>
<dd>Base class implementation for Web server and request handler.</dd>
</dl>
</div>
</div>
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