Apply ruff/flake8-comprehensions rule C417

C417 Unnecessary `map` usage (rewrite using a generator expression)

setuptools/dist.py

@@ -670,7 +670,7 @@ def by_order(hook):
 
         defined = metadata.entry_points(group=group)
         filtered = itertools.filterfalse(self._removed, defined)
-        loaded = map(lambda e: e.load(), filtered)
+        loaded = (e.load() for e in filtered)
         for ep in sorted(loaded, key=by_order):
             ep(self)
 

setuptools/tests/test_build_py.py

@@ -244,7 +244,7 @@ def test_existing_egg_info(tmpdir_cwd, monkeypatch):
     assert build_py.data_files
 
     # Make sure the list of outputs is actually OK
-    outputs = map(lambda x: x.replace(os.sep, "/"), build_py.get_outputs())
+    outputs = (x.replace(os.sep, "/") for x in build_py.get_outputs())
     assert outputs
     example = str(Path(build_py.build_lib, "mypkg/__init__.py")).replace(os.sep, "/")
     assert example in outputs

setuptools/tests/test_sdist.py

@@ -419,7 +419,7 @@ def test_defaults_case_sensitivity(self, source_dir):
         # lowercase all names so we can test in a
         # case-insensitive way to make sure the files
         # are not included.
-        manifest = map(lambda x: x.lower(), cmd.filelist.files)
+        manifest = (x.lower() for x in cmd.filelist.files)
         assert 'readme.rst' not in manifest, manifest
         assert 'setup.py' not in manifest, manifest
         assert 'setup.cfg' not in manifest, manifest