Use typing_extensions only when needed

Annotated was added in Python 3.9 Literal was added in Python 3.8
jaraco · Apr 30, 2024 · e6769b2 · e6769b2
1 parent 1b1b0f2
commit e6769b2
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/inflect/__init__.py b/inflect/__init__.py
@@ -68,6 +68,7 @@
     Dict,
     Iterable,
     List,
+    Literal,
     Match,
     Optional,
     Sequence,
@@ -78,7 +79,11 @@
 
 from more_itertools import windowed_complete
 from typeguard import typechecked
-from typing_extensions import Annotated, Literal
+try:
+    # Python 3.9+
+    from typing import Annotated
+except ImportError:
+    from typing_extensions import Annotated
 
 
 class UnknownClassicalModeError(Exception):

diff --git a/pyproject.toml b/pyproject.toml
@@ -27,7 +27,7 @@ requires-python = ">=3.8"
 dependencies = [
 	"more_itertools",
 	"typeguard >= 4.0.1",
-	"typing_extensions",
+	"typing_extensions ; python_version<'3.9'",
 ]
 keywords = [
 	"plural",