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<H1><A NAME="SECTION004400000000000000000"> </A>
<BR>
2.4 Testing
</H1>
<P>
<b>Warning :</b> These instructions are meant to be followed if you are
using mod_python 3.x or later. If you are using mod_python 2.7.x (namely,
if you are using Apache 1.3.x), please refer to the proper documentation.
<P>
<OL>
<LI>Make some directory that would be visible on your web site, for
example, htdocs/test.
<P>
</LI>
<LI>Add the following Apache directives, which can appear in either the
main server configuration file, or <span class="file">.htaccess</span>. If you are
going to be using the <span class="file">.htaccess</span> file, you will not need the
<code><Directory></code> tag below (the directory then becomes the one in
which the <span class="file">.htaccess</span> file is located), and you will need to
make sure the <code>AllowOverride</code> directive applicable to this
directory has at least <code>FileInfo</code> specified. (The default is
<code>None</code>, which will not work.)
<P>
<div class="verbatim"><pre>
<Directory /some/directory/htdocs/test>
AddHandler mod_python .py
PythonHandler mptest
PythonDebug On
</Directory>
</pre></div>
<P>
(Substitute <span class="file">/some/directory</span> above for something applicable to
your system, usually your Apache ServerRoot)
<P>
</LI>
<LI>This redirects all requests for URLs ending in <span class="file">.py</span> to the mod_python
handler. mod_python receives those requests and looks for an appropriate
PythonHandler to handle them. Here, there is a single PythonHandler
directive defining mptest as the python handler to use. We'll see next
how this python handler is defined.
<P>
</LI>
<LI>At this time, if you made changes to the main configuration file, you
will need to restart Apache in order for the changes to take effect.
<P>
</LI>
<LI>Edit <span class="file">mptest.py</span> file in the <span class="file">htdocs/test</span> directory so
that is has the following lines (be careful when cutting and pasting
from your browser, you may end up with incorrect indentation and a
syntax error):
<P>
<div class="verbatim"><pre>
from mod_python import apache
def handler(req):
req.content_type = 'text/plain'
req.write("Hello World!")
return apache.OK
</pre></div>
<P>
</LI>
<LI>Point your browser to the URL referring to the <span class="file">mptest.py</span>;
you should see "<tt class="samp">Hello World!</tt>". If you didn't - refer to the
troubleshooting section next.
<P>
</LI>
<LI>Note that according to the configuration written above, you can
also point your browser to any URL ending in .py in the test directory.
You can for example point your browser to <span class="file">/test/foobar.py</span>
and it will be handled by <span class="file">mptest.py</span>. That's because you
explicitely set the handler to always be <span class="file">mptest</span>, whatever the
requested file was. If you want to have many handler files named
<span class="file">handler1.py</span>, <span class="file">handler2.py</span>
and so on, and have them accessible on <span class="file">/test/handler1.py</span>,
<span class="file">/test/handler2.py</span>, etc., then you have to use a higher level
handler system such as the mod_python publisher (see <A href="tut-pub.html#tut-pub">3.1</A>),
mpservlets or Vampire. Those are just special mod_python handler
that know how to map requests to a dynamically loaded handler.
<P>
</LI>
<LI>If everything worked well, move on to Chapter <A href="tutorial.html#tutorial">3</A>,
<em class="citetitle"><a
href="tutorial.html"
title="Tutorial"
>Tutorial</a></em>.
<P>
</LI>
</OL>
<P>
<div class="seealso">
<p class="heading"><b>See Also:</b></p>
<dl compact class="seeurl">
<dt><a href="http://home.comcast.net/ d.popowich/mpservlets"
class="url">http://home.comcast.net/ d.popowich/mpservlets</a>
<dd>mpservlets
</dl>
<dl compact class="seeurl">
<dt><a href="http://www.dscpl.com.au/projects/vampire"
class="url">http://www.dscpl.com.au/projects/vampire</a>
<dd>Vampire
</dl>
</div>
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<span class="release-info">Release 3.2.10, documentation updated on July 19, 2006.</span>
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