Remove code incompatible with setuptools>82

anthem/__init__.py

@@ -1,13 +1,19 @@
 # Copyright 2016 Camptocamp SA
+# Copyright 2026 XCG SAS
 # License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0.en.html)
-
-from pkg_resources import get_distribution, DistributionNotFound
+try:
+    # python 3.8+
+    from importlib.metadata import PackageNotFoundError, distribution
+except ModuleNotFoundError:
+    from importlib_metadata import (  # type: ignore[import,no-redef,assignment]
+        PackageNotFoundError,
+        distribution,
+    )
 
 try:
-    __version__ = get_distribution(__name__).version
-except DistributionNotFound:
-    # package is not installed
-    pass
+    __version__ = distribution("anthem").version
+except PackageNotFoundError:
+    __version__ = "dev"
 
 # publish the decorator so we can use 'anthem.log'
 from .output import log  # noqa

setup.py

@@ -16,7 +16,7 @@
     license="LGPLv3+",
     packages=find_packages(exclude=("tests", "docs")),
     entry_points={"console_scripts": ["anthem = anthem.cli:main"]},
-    install_requires=[ "unicodecsv"],
+    install_requires=["unicodecsv", "importlib_metadata; python_version<'3.8'"],
     setup_requires=[
         "setuptools_scm",
     ],