Minor adjustments in apply_pyproject.toml

Author: abravalheri

setuptools/config/_apply_pyprojecttoml.py

@@ -205,7 +205,7 @@ def _dependencies(dist: "Distribution", val: list, _root_dir):
 
 
 def _optional_dependencies(dist: "Distribution", val: dict, _root_dir):
-    existing = getattr(dist, "extras_require", {})
+    existing = getattr(dist, "extras_require", None) or {}
     _set_config(dist, "extras_require", {**existing, **val})
 
 
@@ -353,8 +353,8 @@ def _acessor(obj):
     "classifiers": _attrgetter("metadata.classifiers"),
     "urls": _attrgetter("metadata.project_urls"),
     "entry-points": _get_previous_entrypoints,
-    "dependencies": _some_attrgetter("_orig_install_requires", "install_requires"),
-    "optional-dependencies": _some_attrgetter("_orig_extras_require", "extras_require"),
+    "dependencies": _attrgetter("install_requires"),
+    "optional-dependencies": _attrgetter("extras_require"),
 }
 
 

setuptools/tests/config/test_apply_pyprojecttoml.py

@@ -379,12 +379,12 @@ def test_optional_dependencies_dont_remove_env_markers(self, tmp_path):
         dist = makedist(tmp_path, install_requires=install_req)
         dist = pyprojecttoml.apply_configuration(dist, pyproject)
         assert "foo" in dist.extras_require
-        assert ':python_version < "3.7"' in dist.extras_require
         egg_info = dist.get_command_obj("egg_info")
         write_requirements(egg_info, tmp_path, tmp_path / "requires.txt")
         reqs = (tmp_path / "requires.txt").read_text(encoding="utf-8")
         assert "importlib-resources" in reqs
         assert "bar" in reqs
+        assert ':python_version < "3.7"' in reqs
 
     @pytest.mark.parametrize(
         "field,group",