Fix 3.9 support. TypeAlias is supported in 3.10+

hgrecco · May 1, 2023 · 5643c32 · 5643c32
1 parent bcd32b0
commit 5643c32
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/pint/util.py b/pint/util.py
@@ -24,7 +24,6 @@
 from typing import (
     TYPE_CHECKING,
     ClassVar,
-    TypeAlias,
     Callable,
     TypeVar,
     Any,
@@ -48,8 +47,12 @@
 
 T = TypeVar("T")
 TH = TypeVar("TH", bound=Hashable)
-ItMatrix: TypeAlias = Iterable[Iterable[PintScalar]]
-Matrix: TypeAlias = list[list[PintScalar]]
+
+# TODO: Change when Python 3.10 becomes minimal version.
+# ItMatrix: TypeAlias = Iterable[Iterable[PintScalar]]
+# Matrix: TypeAlias = list[list[PintScalar]]
+ItMatrix = Iterable[Iterable[PintScalar]]
+Matrix = list[list[PintScalar]]
 
 
 def _noop(x: T) -> T: