better na_action value

scverse · Oct 10, 2023 · 6a2ef10 · 6a2ef10
1 parent 26e9099
commit 6a2ef10
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/anndata/_core/merge.py b/anndata/_core/merge.py
@@ -1239,7 +1239,9 @@ def concat(
         [pd.Series(dim_indices(a, axis=axis)) for a in adatas], ignore_index=True
     )
     if index_unique is not None:
-        concat_indices = concat_indices.str.cat(label_col.map(str), sep=index_unique)
+        concat_indices = concat_indices.str.cat(
+            label_col.map(str, na_action="ignore"), sep=index_unique
+        )
     concat_indices = pd.Index(concat_indices)
 
     alt_indices = merge_indices(

diff --git a/anndata/experimental/multi_files/_anncollection.py b/anndata/experimental/multi_files/_anncollection.py
@@ -721,7 +721,7 @@ def __init__(
         )
         if index_unique is not None:
             concat_indices = concat_indices.str.cat(
-                label_col.map(str), sep=index_unique
+                label_col.map(str, na_action="ignore"), sep=index_unique
             )
         self.obs_names = pd.Index(concat_indices)