Log Message:
py-pluggy: updated to 1.0.0

pluggy 1.0.0 (2021-08-25)
=========================

Deprecations and Removals
-------------------------

- Remove deprecated ``implprefix`` support.
  Decorate hook implementations using an instance of HookimplMarker instead.
  The deprecation was announced in release ``0.7.0``.

- Remove the deprecated ``proc`` argument to ``call_historic``.
  Use ``result_callback`` instead, which has the same behavior.
  The deprecation was announced in release ``0.7.0``.

- Remove the ``_Result.result`` property. Use ``_Result.get_result()`` instead.
  Note that unlike ``result``, ``get_result()`` raises the exception if the hook \ 
raised.
  The deprecation was announced in release ``0.6.0``.

- Remove official support for Python 3.4.

- Dropped support for Python 2.
  Continue to use pluggy 0.13.x for Python 2 support.

- Remove official support for Python 3.5.

- The internal ``pluggy.callers``, ``pluggy.manager`` and ``pluggy.hooks`` are \ 
now explicitly marked private by a ``_`` prefix (e.g. ``pluggy._callers``).
  Only API exported by the top-level ``pluggy`` module is considered public.

- Remove legacy ``__multicall__`` recursive hook calling system.
  The deprecation was announced in release ``0.5.0``.

Features
--------

- When registering a hookimpl which is declared as ``hookwrapper=True`` but whose
  function is not a generator function, a ``PluggyValidationError`` exception is
  now raised.

  Previously this problem would cause an error only later, when calling the hook.

  In the unlikely case that you have a hookwrapper that *returns* a generator
  instead of yielding directly, for example:

  .. code-block:: python

      def my_hook_real_implementation(arg):
          print("before")
          yield
          print("after")

      @hookimpl(hookwrapper=True)
      def my_hook(arg):
          return my_hook_implementation(arg)

  change it to use ``yield from`` instead:

  .. code-block:: python

      @hookimpl(hookwrapper=True)
      def my_hook(arg):
          yield from my_hook_implementation(arg)

- Add official support for Python 3.9.