From dd76b3f7d332dd6eced5cbc2ad2adfc397700b3d Mon Sep 17 00:00:00 2001 From: Arie Bovenberg Date: Fri, 11 Feb 2022 01:56:21 +0100 Subject: bpo-46246: add missing __slots__ to importlib.metadata.DeprecatedList (GH-30452) Confirmed with @jaraco that this indeed needs a fix. A question that came up while I was digging into the code: I think `SelectableGroups` could similarly use `__slots__ = ()`, since its purpose seems only for convenience around `dict`, not to have attributes of its own. Automerge-Triggered-By: GH:jaraco --- Lib/importlib/metadata/__init__.py | 2 ++ Lib/test/test_importlib/test_metadata_api.py | 5 +++++ Misc/NEWS.d/next/Library/2022-01-07-13-27-53.bpo-46246.CTLx32.rst | 2 ++ 3 files changed, 9 insertions(+) create mode 100644 Misc/NEWS.d/next/Library/2022-01-07-13-27-53.bpo-46246.CTLx32.rst diff --git a/Lib/importlib/metadata/__init__.py b/Lib/importlib/metadata/__init__.py index 371c482..9fd6e04 100644 --- a/Lib/importlib/metadata/__init__.py +++ b/Lib/importlib/metadata/__init__.py @@ -278,6 +278,8 @@ class DeprecatedList(list): 1 """ + __slots__ = () + _warn = functools.partial( warnings.warn, "EntryPoints list interface is deprecated. Cast to list if needed.", diff --git a/Lib/test/test_importlib/test_metadata_api.py b/Lib/test/test_importlib/test_metadata_api.py index e16773a..78287c3 100644 --- a/Lib/test/test_importlib/test_metadata_api.py +++ b/Lib/test/test_importlib/test_metadata_api.py @@ -172,6 +172,11 @@ class APITests( entry_points().get('entries', 'default') == entry_points()['entries'] entry_points().get('missing', ()) == () + def test_entry_points_allows_no_attributes(self): + ep = entry_points().select(group='entries', name='main') + with self.assertRaises(AttributeError): + ep.foo = 4 + def test_metadata_for_this_package(self): md = metadata('egginfo-pkg') assert md['author'] == 'Steven Ma' diff --git a/Misc/NEWS.d/next/Library/2022-01-07-13-27-53.bpo-46246.CTLx32.rst b/Misc/NEWS.d/next/Library/2022-01-07-13-27-53.bpo-46246.CTLx32.rst new file mode 100644 index 0000000..4850171 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2022-01-07-13-27-53.bpo-46246.CTLx32.rst @@ -0,0 +1,2 @@ +Add missing ``__slots__`` to ``importlib.metadata.DeprecatedList``. Patch by +Arie Bovenberg. -- cgit v0.12