How can I create custom extensions for Sphinx?

How can I create custom extensions for Sphinx?

Creating custom extensions for Sphinx involves defining a new extension module and implementing specific methods. Do you have a particular functionality in mind?

I want to add a new directive for including code snippets.

You can create a new directive by subclassing docutils.parsers.rst.Directive. Would you like a code example?

Yes, please provide a code example.

Here's a simple example:

from docutils import nodes
from docutils.parsers.rst import Directive

class CodeSnippetDirective(Directive):
    def run(self):
        # Your code to handle the snippet
        return [nodes.literal_block('Code snippet here', 'Code snippet here')]

How do I register this directive in Sphinx?

You can register it in your setup.py file using the setup function from setuptools. Would you like more details on that?