Finding and installing plugins

As mentioned at the beginning of the chapter, pytest is written from the ground up with customization and flexibility in mind. The plugin mechanism is at the core of the pytest architecture, so much so that many of pytest's built-in features are implemented in terms of internal plugins, such as marks, parametrization, fixtures—nearly everything, even command-line options.

This flexibility has led to an enormous and rich plugin ecosystem. At the time of writing, the number of plugins available is over 500, and that number keeps increasing at an astonishing rate. 

Finding plugins

Given the large number of plugins, it would be nice if there was a site that showed all pytest plugins along with their descriptions. It would also be nice if this place also showed information about compatibility with different Python and pytest versions.

Well, the good news is that such a site exists, and it is maintained by the core development team: pytest plugin compatibility (http...