How to do it...

As an example, for this chapter, we will create a small add-on module for managing a list of the books for the library.

The following steps will create and install a new add-on module:

1. Change the working directory in which we will work and create the add-ons directory where our custom module will be placed:

   $ cd ~/odoo-dev
   $ mkdir local-addons  

2. Choose a technical name for the new module and create a directory with that name for the module. For our example, we will use my_library:

   $ mkdir local-addons/my_library

   A module's technical name must be a valid Python identifier. It must begin with a letter, and only contain letters, numbers, and underscore characters. It is preferable that you only use lowercase letters in the module name.

3. Make the Python module importable by adding an __init__.py file:

   $ touch local-addons/my_library/__init__.py

4. Add a minimal module manifest for Odoo to detect it as an add-on module. Inside the my_library...