Fix error

To avoid the error 'The truth value of an array with more than one element is ambiguous.', we don't use walrus operator.
mwaskom · Nov 25, 2023 · 7a576f0 · 7a576f0
1 parent 7de7def
commit 7a576f0
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/seaborn/_base.py b/seaborn/_base.py
@@ -933,10 +933,8 @@ def iter_data(
 
             grouping_keys = []
             for var in grouping_vars:
-                if key := levels.get(var):
-                    grouping_keys.append(key)
-                else:
-                    grouping_keys.append([])
+                key = levels.get(var) if levels.get(var) is not None else []
+                grouping_keys.append(key)
 
             iter_keys = itertools.product(*grouping_keys)
             if reverse: