Merge pull request pybamm-team#3335 from kratman/feat/replacePkgResou…

…rces

Replace deprecated pkg_resources

pybamm/parameters/parameter_sets.py

@@ -1,3 +1,4 @@
+import sys
 import warnings
 import importlib.metadata
 import textwrap
@@ -37,9 +38,17 @@ class ParameterSets(Mapping):
     def __init__(self):
         # Dict of entry points for parameter sets, lazily load entry points as
         self.__all_parameter_sets = dict()
-        for entry_point in importlib.metadata.entry_points()["pybamm_parameter_sets"]:
+        for entry_point in self.get_entries("pybamm_parameter_sets"):
             self.__all_parameter_sets[entry_point.name] = entry_point
 
+    @staticmethod
+    def get_entries(group_name):
+        # Wrapper for the importlib version logic
+        if sys.version_info < (3, 10): # pragma: no cover
+            return importlib.metadata.entry_points()[group_name]
+        else:
+            return importlib.metadata.entry_points(group=group_name)
+
     def __new__(cls):
         """Ensure only one instance of ParameterSets exists"""
         if not hasattr(cls, "instance"):

pybamm/util.py

@@ -18,7 +18,7 @@
 from warnings import warn
 
 import numpy as np
-import pkg_resources
+import importlib.metadata
 
 import pybamm
 
@@ -271,9 +271,10 @@ def have_jax():
 
 def is_jax_compatible():
     """Check if the available version of jax and jaxlib are compatible with PyBaMM"""
-    return pkg_resources.get_distribution("jax").version.startswith(
-        JAX_VERSION
-    ) and pkg_resources.get_distribution("jaxlib").version.startswith(JAXLIB_VERSION)
+    return (
+        importlib.metadata.distribution("jax").version.startswith(JAX_VERSION)
+        and importlib.metadata.distribution("jaxlib").version.startswith(JAXLIB_VERSION)
+    )
 
 
 def is_constant_and_can_evaluate(symbol):

tests/unit/test_parameters/test_parameter_sets_class.py

@@ -4,7 +4,6 @@
 from tests import TestCase
 
 import pybamm
-import pkg_resources
 import unittest
 
 
@@ -25,7 +24,7 @@ def test_all_registered(self):
         """Check that all parameter sets have been registered with the
         ``pybamm_parameter_sets`` entry point"""
         known_entry_points = set(
-            ep.name for ep in pkg_resources.iter_entry_points("pybamm_parameter_sets")
+            ep.name for ep in pybamm.parameter_sets.get_entries("pybamm_parameter_sets")
         )
         self.assertEqual(set(pybamm.parameter_sets.keys()), known_entry_points)
         self.assertEqual(len(known_entry_points), len(pybamm.parameter_sets))