typing: more py3.9 fixes

OpenFreeEnergy · Sep 1, 2023 · 43d78c1 · 43d78c1
1 parent b72c214
commit 43d78c1
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/cinnabar/measurements.py b/cinnabar/measurements.py
@@ -1,7 +1,7 @@
 from openff.models.models import DefaultModel
 from openff.models.types import FloatQuantity
 from openff.units import unit
-from typing import Hashable
+from typing import Hashable, Union
 import math
 
 
@@ -60,7 +60,7 @@ class Measurement(DefaultModel):
 
     @classmethod
     def from_experiment(cls,
-                        label: str | Hashable,
+                        label: Union[str, Hashable],
                         Ki: unit.Quantity,
                         uncertainty: unit.Quantity = 0 * unit.nanomolar,
                         *,