pluggy 1.6.0

Description

pluggy is the crystallized core of plugin management and hook calling for
pytest. It enables 500+ plugins to extend and customize pytest's default
behaviour. Even pytest itself is composed as a set of pluggy plugins which are
invoked in sequence according to a well defined set of protocols.

It gives users the ability to extend or modify the behaviour of a host program
by installing a plugin for that program. The plugin code will run as part of
normal program execution, changing or enhancing certain aspects of it.

In essence, pluggy enables function hooking so you can build "pluggable"
systems.