Remove usage of deprecated Pandas parameter convert_dtypes (#3191)

vega · Sep 15, 2023 · b2b14cd · b2b14cd
1 parent dd72c9b
commit b2b14cd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/altair/utils/core.py b/altair/utils/core.py
@@ -407,7 +407,7 @@ def to_list_if_array(val):
         elif dtype == object:
             # Convert numpy arrays saved as objects to lists
             # Arrays are not JSON serializable
-            col = df[col_name].apply(to_list_if_array, convert_dtype=False)
+            col = df[col_name].astype(object).apply(to_list_if_array)
             df[col_name] = col.where(col.notnull(), None)
     return df