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The Evolution of Finger: configuration of the finger service

Introduction

This is the eleventh part of the Twisted tutorial Twisted from Scratch, or The Evolution of Finger <index> .

In this part, we make it easier for non-programmers to configure a finger server. Plugins are discussed further in the Twisted Plugin System <../plugin> howto. Writing twistd plugins is covered in Writing a twistd Plugin <../tap>, and .tac applications are covered in Using the Twisted Application Framework <../application>.

Plugins

So far, the user had to be somewhat of a programmer to be able to configure stuff. Maybe we can eliminate even that? Move old code to finger/__init__.py and...

Full source code for finger module here:

finger.py <listings/finger/finger/finger.py>

listings/finger/finger/finger.py

tap.py <listings/finger/finger/tap.py>

listings/finger/finger/tap.py

And register it all:

finger_tutorial.py <listings/finger/twisted/plugins/finger_tutorial.py>

listings/finger/twisted/plugins/finger_tutorial.py

Note that the second argument to twisted.application.service.ServiceMaker <ServiceMaker> ,finger.tap , is a reference to a module (finger/tap.py ), not to a filename.

And now, the following works

% sudo twistd -n finger --file=/etc/users --ircnick=fingerbot

For more details about this, see the twistd plugin documentation <../tap> .