Using importlib instead of pkg_resources for version handling

CHANGES.rst

@@ -4,7 +4,9 @@ Changelog for zest.releaser
 9.1.4 (unreleased)
 ------------------
 
-- Nothing changed yet.
+- Fixed version handling documentation to use ``importlib`` instead of
+  ``pkg_resources``.
+  [reinout]
 
 
 9.1.3 (2024-02-07)

doc/source/versions.rst

@@ -83,14 +83,13 @@ discussion.
 - The version in the ``setup.py`` is the real version.
 
 - Add a ``__version__`` attribute in your main module. Often this will be an
-  ``__init__.py``. Set this version attribute with ``pkg_resources``, which is
-  automatically installed as part of setuptools/distribute. Here's `the code
-  <https://github.com/zestsoftware/zest.releaser/blob/master/zest/releaser/__init__.py>`_
+  ``__init__.py``. Set this version attribute with ``importlib.metadata``. Here's `the
+  code <https://github.com/zestsoftware/zest.releaser/blob/master/zest/releaser/__init__.py>`_
   from ``zest/releaser/__init__.py``::
 
-      import pkg_resources
+      from importlib.metadata import version
 
-      __version__ = pkg_resources.get_distribution("zest.releaser").version
+      __version__ = version("zest.releaser")
 
   This way you can do::
 

zest/releaser/__init__.py

@@ -1,6 +1,5 @@
 from colorama import init
-
-import pkg_resources
+from importlib.metadata import version
 
 
 # Initialize colorized output.  Set it to reset after each print, so
@@ -9,4 +8,4 @@
 # but it looks like it already does that itself.
 init(autoreset=True)
 
-__version__ = pkg_resources.get_distribution("zest.releaser").version
+__version__ = version("zest.releaser")