Use deep copy.

a-scie · Jan 6, 2023 · 626abaa · 626abaa
1 parent 6d6bf3c
commit 626abaa
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/science/frozendict.py b/science/frozendict.py
@@ -1,6 +1,6 @@
 # Copyright 2023 Science project contributors.
 # Licensed under the Apache License, Version 2.0 (see LICENSE).
-
+import copy
 from typing import Generic, Iterator, Mapping, TypeVar
 
 K = TypeVar("K")
@@ -10,7 +10,7 @@
 class FrozenDict(Generic[K, V], Mapping[K, V]):
     def __init__(self, data: Mapping[K, V] | None = None) -> None:
         super().__init__()
-        self._data: Mapping[K, V] = dict(data) if data else {}
+        self._data: Mapping[K, V] = copy.deepcopy(data) if data else {}
         self._hash: int | None = None
 
     def __getitem__(self, key: K) -> V: