try: from typing import Literal

git/objects/blob.py

@@ -6,7 +6,11 @@
 from mimetypes import guess_type
 from . import base
 
-from git.types import Literal
+
+try:
+    from typing import Literal
+except ImportError:
+    from typing_extensions import Literal
 
 __all__ = ("Blob",)
 

git/objects/commit.py

@@ -44,7 +44,12 @@
     Dict,
 )
 
-from git.types import PathLike, Literal
+from git.types import PathLike
+
+try:
+    from typing import Literal
+except ImportError:
+    from typing_extensions import Literal
 
 if TYPE_CHECKING:
     from git.repo import Repo

git/objects/submodule/base.py

@@ -44,7 +44,12 @@
 from typing import Callable, Dict, Mapping, Sequence, TYPE_CHECKING, cast
 from typing import Any, Iterator, Union
 
-from git.types import Commit_ish, Literal, PathLike, TBD
+from git.types import Commit_ish, PathLike, TBD
+
+try:
+    from typing import Literal
+except ImportError:
+    from typing_extensions import Literal
 
 if TYPE_CHECKING:
     from git.index import IndexFile

git/objects/tag.py

@@ -16,7 +16,10 @@
 
 from typing import List, TYPE_CHECKING, Union
 
-from git.types import Literal
+try:
+    from typing import Literal
+except ImportError:
+    from typing_extensions import Literal
 
 if TYPE_CHECKING:
     from git.repo import Repo

git/objects/tree.py

@@ -31,7 +31,12 @@
     TYPE_CHECKING,
 )
 
-from git.types import PathLike, Literal
+from git.types import PathLike
+
+try:
+    from typing import Literal
+except ImportError:
+    from typing_extensions import Literal
 
 if TYPE_CHECKING:
     from git.repo import Repo