Drop support for Python 3.7 (#2137)

2 files changed, 3 insertions, 14 deletions

diff --git a/astroid/interpreter/_import/spec.py b/astroid/interpreter/_import/spec.py
index f17ce51f..1630ca8a 100644
--- a/astroid/interpreter/_import/spec.py
+++ b/astroid/interpreter/_import/spec.py
@@ -17,18 +17,13 @@ import warnings
 import zipimport
 from collections.abc import Iterator, Sequence
 from pathlib import Path
-from typing import Any, NamedTuple
+from typing import Any, Literal, NamedTuple, Protocol
 
 from astroid.const import PY310_PLUS
 from astroid.modutils import EXT_LIB_DIRS
 
 from . import util
 
-if sys.version_info >= (3, 8):
-    from typing import Literal, Protocol
-else:
-    from typing_extensions import Literal, Protocol
-
 
 # The MetaPathFinder protocol comes from typeshed, which says:
 # Intentionally omits one deprecated and one optional method of `importlib.abc.MetaPathFinder`
diff --git a/astroid/interpreter/objectmodel.py b/astroid/interpreter/objectmodel.py
index bd9e9f5b..12405684 100644
--- a/astroid/interpreter/objectmodel.py
+++ b/astroid/interpreter/objectmodel.py
@@ -26,10 +26,9 @@ from __future__ import annotations
 import itertools
 import os
 import pprint
-import sys
 import types
 from functools import lru_cache
-from typing import TYPE_CHECKING, Any
+from typing import TYPE_CHECKING, Any, Literal
 
 import astroid
 from astroid import bases, nodes, util
@@ -38,11 +37,6 @@ from astroid.exceptions import AttributeInferenceError, InferenceError, NoDefaul
 from astroid.manager import AstroidManager
 from astroid.nodes import node_classes
 
-if sys.version_info >= (3, 8):
-    from typing import Literal
-else:
-    from typing_extensions import Literal
-
 if TYPE_CHECKING:
     from astroid.objects import Property
 
@@ -115,7 +109,7 @@ class ObjectModel:
     def __contains__(self, name) -> bool:
         return name in self.attributes()
 
-    @lru_cache()  # noqa
+    @lru_cache  # noqa
     def attributes(self) -> list[str]:
         """Get the attributes which are exported by this object model."""
         return [o[LEN_OF_IMPL_PREFIX:] for o in dir(self) if o.startswith(IMPL_PREFIX)]