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<body>
<div class="document" id="paste-webkit">
<h1 class="title">Paste WebKit</h1>
<table class="docinfo" frame="void" rules="none">
<col class="docinfo-name" />
<col class="docinfo-content" />
<tbody valign="top">
<tr><th class="docinfo-name">Author:</th>
<td>Ian Bicking &lt;<a class="reference external" href="mailto:ianb&#37;&#52;&#48;colorstudy&#46;com">ianb<span>&#64;</span>colorstudy<span>&#46;</span>com</a>&gt;</td></tr>
<tr><th class="docinfo-name">Revision:</th>
<td>3287</td></tr>
<tr><th class="docinfo-name">Date:</th>
<td>2005-09-26 12:08:24 -0500 (Mon, 26 Sep 2005)</td></tr>
</tbody>
</table>
<div class="contents topic" id="contents">
<p class="topic-title first">Contents</p>
<ul class="simple">
<li><a class="reference internal" href="#introduction" id="id1">Introduction</a></li>
<li><a class="reference internal" href="#installation" id="id2">Installation</a></li>
<li><a class="reference internal" href="#configuration" id="id3">Configuration</a></li>
<li><a class="reference internal" href="#deploying-an-application" id="id4">Deploying an Application</a></li>
</ul>
</div>
<div class="section" id="introduction">
<h1>Introduction</h1>
<p>This is a basic description of how to get Paste WebKit installed and
working.  It is not a tutorial (see the <a class="reference external" href="http://pythonpaste.org/docs/TodoTutorial.html">Todo Tutorial</a> for now -- but note
the installation instructions here differ from that document).</p>
</div>
<div class="section" id="installation">
<h1>Installation</h1>
<p>To install, first get <a class="reference external" href="http://peak.telecommunity.com/DevCenter/EasyInstall">easy_install</a>.  Currently,
as not all prerequisites are fully packaged, do:</p>
<pre class="literal-block">
$ easy_install.py http://svn.pythonpaste.org/Paste/branches/mainline-refactor
$ easy_install.py http://svn.pythonpaste.org/Paste/WebKit/trunk
</pre>
<p>You may need to run these as root.  The second command should install
<a class="reference external" href="http://pythonpaste.org/deploy/paste-deploy.html">Paste Deployment</a>
on its own.</p>
</div>
<div class="section" id="configuration">
<h1>Configuration</h1>
<p>This uses Paste Deploy, so to configure your application write a .ini
file like:</p>
<pre class="literal-block">
[app:main]
use = egg:PasteWebKit
package_name = mypackage
myconfig_var = foo1
</pre>
<p>There are several configuration keys WebKit uses.  The first are to
find your application; you can use <em>one</em> of these:</p>
<p><tt class="docutils literal">servlet_directory</tt>:</p>
<blockquote>
The directory where you've put your servlets.  You can use
<tt class="docutils literal">%(here)s</tt> to refer to the directory that contains the
configuration file.</blockquote>
<p><tt class="docutils literal">package_name</tt>:</p>
<blockquote>
The package for your application.  Servlets are expected in a
<tt class="docutils literal">web</tt> subpackage.  So if you give <tt class="docutils literal">mypackage</tt> it will look in
<tt class="docutils literal">mypackage.web</tt> for the servlets.</blockquote>
<p>The other keys configure various filters/middleware:</p>
<p><tt class="docutils literal">complete_stack</tt> (default true):</p>
<blockquote>
If false, then none of the middleware will be installed.  This may
be useful if you are nesting one WebKit app inside another (and
don't want to duplicate the stack).</blockquote>
<p><tt class="docutils literal">debug</tt> (default false):</p>
<blockquote>
<p>This controls a number of settings.  Mostly errors will be
displayed in the browser with this on.  It is also picked up from
the global <tt class="docutils literal">debug</tt> setting if not given.</p>
<p>Also, with this on, the <tt class="docutils literal">printdebug</tt> filter will be installed,
which catches all print statements and shows them in a <tt class="docutils literal">&lt;pre&gt;</tt>
in each response page.</p>
</blockquote>
<p><tt class="docutils literal">cookie_name</tt> (default <tt class="docutils literal">_SID_</tt> -- for session):</p>
<blockquote>
The cookie name the session will use.</blockquote>
<p><tt class="docutils literal">session_file_path</tt> (default <tt class="docutils literal">/tmp</tt>):</p>
<blockquote>
Where the session files are kept.</blockquote>
<p><tt class="docutils literal">error_email</tt> (default: none):</p>
<blockquote>
<p>Any email addresses that should be used when reporting errors.
Adding emails here will enable this feature.  Use spaces to
separate multiple addresses.</p>
<p>If you don't give this in the application section, the keys
<tt class="docutils literal">error_email</tt> or <tt class="docutils literal">sysadmin_email</tt> (in that order) will be
pulled from te global configuration (<tt class="docutils literal">[DEFAULTS]</tt>).</p>
</blockquote>
<p><tt class="docutils literal">error_log</tt> (default: none):</p>
<blockquote>
A file to append to with error reports.</blockquote>
<p><tt class="docutils literal">show_exceptions_in_wsgi_errors</tt> (default: not debug):</p>
<blockquote>
If true then errors will show up in the server error logs.  Where
this goes depends on the server.  If debug is on, this defaults to
off, and vice versa.</blockquote>
<p><tt class="docutils literal">from_address</tt> (default: <tt class="docutils literal">errors&#64;localhost</tt>):</p>
<blockquote>
What address errors appear to come from.</blockquote>
<p><tt class="docutils literal">smtp_server</tt> (default: <tt class="docutils literal">localhost</tt>):</p>
<blockquote>
The SMTP server (for sending errors).</blockquote>
<p><tt class="docutils literal">error_subject_prefix</tt> (default: <tt class="docutils literal">[app_name]</tt>):</p>
<blockquote>
The prefix to put on error email subjects.  If an <tt class="docutils literal">app_name</tt> is
given (globally or locally) then that will be used.</blockquote>
<p><tt class="docutils literal">error_message</tt> (default: none):</p>
<blockquote>
Extra text to use in error messages presented to users (when debug
mode is off)</blockquote>
<p><tt class="docutils literal">profile</tt> (default: false):</p>
<blockquote>
If on, then all requests will be profiled.  This slows down the
app considerable, so <em>absolutely</em> don't use it except in
development.</blockquote>
<p><tt class="docutils literal">profile_limit</tt> (default: 40):</p>
<blockquote>
Show the top N slowest parts of the system.</blockquote>
<p>All other configuration keys will be sent to the application.  So in
the example <tt class="docutils literal">myconfig_var</tt> would be application configuration.</p>
<p>Applications can access this information like:</p>
<pre class="literal-block">
from paste.deploy import CONFIG

def my_routine():
    var = CONFIG['myconfig_var']
</pre>
<p>The <tt class="docutils literal">CONFIG</tt> variable dispatches to the configuration for the
<em>current request</em>, whatever that request might be.  This means you
can't use it at the module-level, because modules are loaded once,
before any per-request configuration is available.</p>
</div>
<div class="section" id="deploying-an-application">
<h1>Deploying an Application</h1>
<p>Once you've configured your application, you use Paste Deploy to
create a WSGI application.  WSGI applications can be used by many
servers.</p>
<p>To get an application you do:</p>
<pre class="literal-block">
from paste.deploy import loadapp

wsgi_app = loadapp('config:myconfig_file.ini',
                   relative_to=config_dir)
</pre>
<p>This loads the app described by <tt class="docutils literal">app:main</tt> from the configuration
file.  You can give <tt class="docutils literal"><span class="pre">config:/absolute_path</span></tt>, or use <tt class="docutils literal">relative_to</tt>
to allow relative paths.</p>
<p>You can also run the server with <a class="reference external" href="http://svn.pythonpaste.org/Paste/Script/trunk">PasteScript</a>.  Add a
<tt class="docutils literal">[server:main]</tt> section to your configuration, like:</p>
<pre class="literal-block">
[server:main]
# this is a good testing server:
use = egg:PasteScript#wsgiutils
host = 127.0.0.1
port = 8080
</pre>
<p>And then use <tt class="docutils literal">paster serve <span class="pre">--reload</span> path/to/conf.ini</tt>.  The
<tt class="docutils literal"><span class="pre">--reload</span></tt> option causes the server to restart when files are edited
(this is kind of expensive, so should only be used during
development).</p>
</div>
</div>
</body>
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python-pastewebkit 1.0-8 / usr / share / doc / python-pastewebkit / docs / paste-webkit.html
