PEP 752: Add more examples (#3912)

Author: ofek

peps/pep-0752.rst

@@ -403,23 +403,45 @@ Footnotes
 
 .. [2] Some examples of projects that have many packages with a common prefix:
 
-   - `MkDocs <https://github.com/mkdocs/mkdocs>`__ is a documentation framework
-     based on Markdown files. They have the concept of
-     `plugins <https://www.mkdocs.org/dev-guide/plugins/>`__ which may be
-     developed by anyone and by convention are prefixed by ``mkdocs-``.
+   - `Django <https://www.djangoproject.com>`__ is one of the most widely used
+     frameworks in existence. They have the concept of `middleware`__ which
+     allows for third-party packages to modify the request/response cycle.
+     These packages are by convention prefixed by ``django-``.
    - `Project Jupyter <https://jupyter.org>`__ is devoted to the development of
      tooling for sharing interactive documents. They support `extensions`__
-     which in most cases (and in all cases for officially maintained extensions)
-     are prefixed by ``jupyter-``.
+     which in most cases (and in all cases for officially maintained
+     extensions) are prefixed by ``jupyter-``.
+   - `pytest <https://docs.pytest.org>`__ is Python's most popular testing
+     framework. They have the concept of `plugins`__ which may be developed by
+     anyone and by convention are prefixed by ``pytest-``.
+   - `MkDocs <https://www.mkdocs.org>`__ is a documentation framework based on
+     Markdown files. They also have the concept of
+     `plugins <https://www.mkdocs.org/dev-guide/plugins/>`__ which may be
+     developed by anyone and are usually prefixed by ``mkdocs-``.
+   - `Sphinx <https://www.sphinx-doc.org>`__ is a documentation framework
+     popular for large technical projects such as
+     `Swift <https://www.swift.org>`__ and Python itself. They have
+     the concept of `extensions`__ which are prefixed by ``sphinxcontrib-``,
+     many of which are maintained within a
+     `dedicated organization <https://github.com/sphinx-contrib>`__.
    - `OpenTelemetry <https://opentelemetry.io>`__ is an open standard for
      observability with `official packages`__ for the core APIs and SDK with
      `third-party packages`__ to collect data from various sources. All
      packages are prefixed by ``opentelemetry-`` with child prefixes in the
      form ``opentelemetry-<component>-<name>-``.
+   - `Apache Airflow <https://airflow.apache.org>`__ is a platform to
+     programmatically orchestrate tasks as directed acyclic graphs (DAGs).
+     They have the concept of `plugins`__, and also `providers`__ which are
+     prefixed by ``apache-airflow-providers-``.
 
+__ https://docs.djangoproject.com/en/5.1/topics/http/middleware/
 __ https://jupyterlab.readthedocs.io/en/stable/user/extensions.html
+__ https://docs.pytest.org/en/stable/how-to/writing_plugins.html
+__ https://www.sphinx-doc.org/en/master/usage/extensions/index.html
 __ https://github.com/open-telemetry/opentelemetry-python
 __ https://github.com/open-telemetry/opentelemetry-python-contrib
+__ https://airflow.apache.org/docs/apache-airflow/stable/authoring-and-scheduling/plugins.html
+__ https://airflow.apache.org/docs/apache-airflow-providers/index.html
 
 .. _orgs: https://blog.pypi.org/posts/2023-04-23-introducing-pypi-organizations/
 .. _corp-orgs: https://docs.pypi.org/organization-accounts/pricing-and-payments/#corporate-organizations