<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Werkzeug Documentation</title>
<link rel="stylesheet" href="../_static/style.css" type="text/css">
<link rel="stylesheet" href="../_static/print.css" type="text/css" media="print">
<link rel="stylesheet" href="../_static/pygments.css" type="text/css">
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '../',
VERSION: '0.6.1'
};
</script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/interface.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<script type="text/javascript" src="../_static/werkzeug.js"></script>
<link rel="contents" title="Global table of contents" href="../contents.html">
<link rel="index" title="Global index" href="../genindex.html">
<link rel="search" title="Search" href="../search.html">
<link rel="top" title="Werkzeug v0.6.1 documentation" href="../index.html">
<link rel="up" title="Contributed Modules" href="index.html">
<link rel="next" title="Important Terms" href="../terms.html">
<link rel="prev" title="WSGI Application Profiler" href="profiler.html">
</head>
<body>
<div class="page">
<div class="header">
<h1 class="heading"><a href="../index.html"
title="back to the documentation overview"><span>Werkzeug</span></a></h1>
</div>
<ul class="navigation">
<li class="indexlink"><a href="../index.html">Overview</a></li>
<li><a href="profiler.html">« WSGI Application Profiler</a></li>
<li class="active"><a href="#">Lint Validation Middleware</a></li>
<li><a href="../terms.html">Important Terms »</a></li>
</ul>
<div class="body">
<div class="section" id="module-werkzeug.contrib.lint">
<span id="lint-validation-middleware"></span><h1>Lint Validation Middleware<a class="headerlink" href="#module-werkzeug.contrib.lint" title="Permalink to this headline">¶</a></h1>
<p class="versionadded">
<span class="versionmodified">New in version 0.5.</span></p>
<p>This module provides a middleware that performs sanity checks of the WSGI
application. It checks that <span class="target" id="index-0"></span><a class="pep reference external" href="http://www.python.org/dev/peps/pep-0333"><strong>PEP 333</strong></a> is properly implemented and warns
on some common HTTP errors such as non-empty responses for 304 status
codes.</p>
<p>This module provides a middleware, the <a title="werkzeug.contrib.lint.LintMiddleware" class="reference internal" href="#werkzeug.contrib.lint.LintMiddleware"><tt class="xref py py-class docutils literal"><span class="pre">LintMiddleware</span></tt></a>. Wrap your
application with it and it will warn about common problems with WSGI and
HTTP while your application is running.</p>
<p>It’s strongly recommended to use it during development.</p>
<dl class="class">
<dt id="werkzeug.contrib.lint.LintMiddleware">
<em class="property">class </em><tt class="descclassname">werkzeug.contrib.lint.</tt><tt class="descname">LintMiddleware</tt><big>(</big><em>app</em><big>)</big><a class="headerlink" href="#werkzeug.contrib.lint.LintMiddleware" title="Permalink to this definition">¶</a></dt>
<dd><p>This middleware wraps an application and warns on common errors.
Among other thing it currently checks for the following problems:</p>
<ul class="simple">
<li>invalid status codes</li>
<li>non-bytestrings sent to the WSGI server</li>
<li>strings returned from the WSGI application</li>
<li>non-empty conditional responses</li>
<li>unquoted etags</li>
<li>relative URLs in the Location header</li>
<li>unsafe calls to wsgi.input</li>
<li>unclosed iterators</li>
</ul>
<p>Detected errors are emitted using the standard Python <a title="(in Python v2.7)" class="reference external" href="http://docs.python.org/dev/library/warnings.html#module-warnings"><tt class="xref py py-mod docutils literal"><span class="pre">warnings</span></tt></a>
system and usually end up on <tt class="xref py py-data docutils literal"><span class="pre">stderr</span></tt>.</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">from</span> <span class="nn">werkzeug.contrib.lint</span> <span class="kn">import</span> <span class="n">LintMiddleware</span>
<span class="n">app</span> <span class="o">=</span> <span class="n">LintMiddleware</span><span class="p">(</span><span class="n">app</span><span class="p">)</span>
</pre></div>
</div>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
<li><strong>app</strong> – the application to wrap</li>
</ul>
</td>
</tr>
</tbody>
</table>
</dd></dl>
</div>
<div style="clear: both"></div>
</div>
<div class="footer">
© Copyright 2008 by the <a href="http://pocoo.org/">Pocoo Team</a>,
documentation generated by <a href="http://sphinx.pocoo.org/">Sphinx</a>
</div>
</div>
</body>
</html>
distrib
>
Fedora
>
14
>
i386
>
media
>
os
>
by-pkgid
>
5c4f8358fd6fdc210fb0d926bd25802c
>
files
>
232
