List/tuple -> sequence

sagemath · Sep 13, 2022 · 43e6813 · 43e6813
1 parent 4ddf379
commit 43e6813
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/sage/combinat/integer_vector.py b/src/sage/combinat/integer_vector.py
@@ -30,6 +30,7 @@
 
 from sage.combinat.integer_lists import IntegerListsLex
 from itertools import product
+from collections.abc import Sequence
 import numbers
 
 from sage.structure.parent import Parent
@@ -696,7 +697,7 @@ def __contains__(self, x):
         if isinstance(x, IntegerVector):
             return True
 
-        if not isinstance(x, (list, tuple)):
+        if not isinstance(x, Sequence):
             return False
 
         for i in x: