Change annotation back to older style

materialsproject · Mar 29, 2022 · 02ac6df · 02ac6df
1 parent 5f5c537
commit 02ac6df
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/pymatgen/apps/battery/battery_abc.py b/pymatgen/apps/battery/battery_abc.py
@@ -11,6 +11,7 @@
 
 from collections.abc import Sequence
 from dataclasses import dataclass
+from typing import Tuple
 
 from monty.json import MSONable
 from scipy.constants import N_A
@@ -134,7 +135,7 @@ class AbstractElectrode(Sequence, MSONable):
         framework_formula: The compositions of one formula unit of the host material
     """
 
-    voltage_pairs: tuple[AbstractVoltagePair, ...]
+    voltage_pairs: Tuple[AbstractVoltagePair, ...]
     working_ion_entry: ComputedEntry
     framework_formula: str  # should be made into Composition whenever the as_dict and from dict are fixed