Drop Python 3.5

test/test_dependency_versions.py

@@ -47,7 +47,7 @@ def get_versions_from_constraint_file(constraint_file):
     }
 
 
-@pytest.mark.parametrize("python_version", ["2.7", "3.5", "3.6", "3.8"])
+@pytest.mark.parametrize("python_version", ["2.7", "3.6", "3.8", "3.9"])
 def test_pinned_versions(tmp_path, python_version):
     if utils.platform == "linux":
         pytest.skip("linux doesn't pin individual tool versions, it pins manylinux images instead")
@@ -55,11 +55,6 @@ def test_pinned_versions(tmp_path, python_version):
     if utils.platform == "windows" and python_version == "2.7":
         pytest.skip("Windows requires a workaround")
 
-    is_macos_11_or_later = utils.platform == "macos" and utils.get_macos_version() >= (10, 16)
-
-    if is_macos_11_or_later and python_version == "3.5":
-        pytest.skip("CPython 3.5 doesn't work on macOS Big Sur+")
-
     project_dir = tmp_path / "project"
     project_with_expected_version_checks.generate(project_dir)
 
@@ -68,9 +63,6 @@ def test_pinned_versions(tmp_path, python_version):
     if python_version == "2.7":
         constraint_filename = "constraints-python27.txt"
         build_pattern = "[cp]p27-*"
-    elif python_version == "3.5":
-        constraint_filename = "constraints-python35.txt"
-        build_pattern = "[cp]p35-*"
     elif python_version == "3.6":
         constraint_filename = "constraints-python36.txt"
         build_pattern = "[cp]p36-*"
@@ -104,10 +96,6 @@ def test_pinned_versions(tmp_path, python_version):
         expected_wheels = [
             w for w in utils.expected_wheels("spam", "0.1.0") if "-cp27" in w or "-pp27" in w
         ]
-    elif python_version == "3.5":
-        expected_wheels = [
-            w for w in utils.expected_wheels("spam", "0.1.0") if "-cp35" in w or "-pp35" in w
-        ]
     elif python_version == "3.6":
         expected_wheels = [
             w for w in utils.expected_wheels("spam", "0.1.0") if "-cp36" in w or "-pp36" in w