This replaces assertRaisesRegexp with assertRaisesRegex for compatibility with
python >= 3.12.
diff --color -rupN a/simplesat/constraints/tests/test_package_parser.py b/simplesat/constraints/tests/test_package_parser.py
--- a/simplesat/constraints/tests/test_package_parser.py	2019-10-08 14:40:38.000000000 +0200
+++ b/simplesat/constraints/tests/test_package_parser.py	2024-07-04 15:35:07.408091882 +0200
@@ -22,7 +22,7 @@ class TestPrettyPackageStringParser(unit
         r_message = "Invalid preamble: "
 
         # Then
-        with self.assertRaisesRegexp(ValueError, r_message):
+        with self.assertRaisesRegex(ValueError, r_message):
             parse(package_string)
 
         # Given
@@ -30,7 +30,7 @@ class TestPrettyPackageStringParser(unit
         r_message = "Invalid preamble: 'numpy'"
 
         # Then
-        with self.assertRaisesRegexp(ValueError, r_message):
+        with self.assertRaisesRegex(ValueError, r_message):
             parse(package_string)
 
         # Given
@@ -38,7 +38,7 @@ class TestPrettyPackageStringParser(unit
         r_message = ("Invalid preamble: ")
 
         # Then
-        with self.assertRaisesRegexp(ValueError, r_message):
+        with self.assertRaisesRegex(ValueError, r_message):
             parse(package_string)
 
         # Given
@@ -46,7 +46,7 @@ class TestPrettyPackageStringParser(unit
         r_message = ("Invalid preamble: ")
 
         # Then
-        with self.assertRaisesRegexp(ValueError, r_message):
+        with self.assertRaisesRegex(ValueError, r_message):
             parse(package_string)
 
         # Given
@@ -54,7 +54,7 @@ class TestPrettyPackageStringParser(unit
         r_message = ("Invalid preamble: ")
 
         # Then
-        with self.assertRaisesRegexp(ValueError, r_message):
+        with self.assertRaisesRegex(ValueError, r_message):
             parse(package_string)
 
         # Given
@@ -63,7 +63,7 @@ class TestPrettyPackageStringParser(unit
                      "Unknown constraint kind: 'disparages'")
 
         # When
-        with self.assertRaisesRegexp(ValueError, r_message):
+        with self.assertRaisesRegex(ValueError, r_message):
             parse(package_string)
 
     def test_depends_simple(self):
@@ -216,7 +216,7 @@ class TestPrettyPackageStringParser(unit
                      "Unknown constraint kind: 'conflits'")
 
         # Then
-        with self.assertRaisesRegexp(ValueError, r_message):
+        with self.assertRaisesRegex(ValueError, r_message):
             parse(package_string)
 
         # Given
diff --color -rupN a/simplesat/tests/test_pool.py b/simplesat/tests/test_pool.py
--- a/simplesat/tests/test_pool.py	2019-10-08 14:40:38.000000000 +0200
+++ b/simplesat/tests/test_pool.py	2024-07-04 15:35:07.411425195 +0200
@@ -166,7 +166,7 @@ class TestPool(unittest.TestCase):
             constraint_re = re.escape(constraint)
 
             # Then
-            with self.assertRaisesRegexp(InvalidConstraint, constraint_re):
+            with self.assertRaisesRegex(InvalidConstraint, constraint_re):
                 Pool([repository])
 
     def test_accept_anyversion_constraint_on_provides_metadata(self):