Error when combining adata objects using scPoli

[poloarol]

Hello!

Thank you for the tool. I am encountering an error when combining various adata objects from scPoli:

The code if as follows:

adata_latent_full = adata_latent_source.concatenate(
    [adata_latent, labeled_prototypes, unlabeled_prototypes],
    batch_key='query'
)

The error is this:

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Cell In[69], [line 1](vscode-notebook-cell:?execution_count=69&line=1)
----> [1](vscode-notebook-cell:?execution_count=69&line=1) adata_latent_full = adata_latent_source.concatenate(
      [2](vscode-notebook-cell:?execution_count=69&line=2)     [adata_latent, labeled_prototypes, unlabeled_prototypes],
      [3](vscode-notebook-cell:?execution_count=69&line=3)     batch_key='query'
      [4](vscode-notebook-cell:?execution_count=69&line=4) )

File \\233-jnadaf-pc2\Users\pdjonk\Desktop\data\003_ANNOTATION\scarches-env\lib\site-packages\anndata\_core\anndata.py:1806, in AnnData.concatenate(self, join, batch_key, batch_categories, uns_merge, index_unique, fill_value, *adatas)
   [1797](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1797) pat = rf"-({'|'.join(batch_categories)})$"
   [1798](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1798) out.var = merge_dataframes(
   [1799](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1799)     [a.var for a in all_adatas],
   [1800](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1800)     out.var_names,
   [1801](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1801)     partial(merge_outer, batch_keys=batch_categories, merge=merge_same),
   [1802](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1802) )
   [1803](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1803) out.var = out.var.iloc[
   [1804](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1804)     :,
   [1805](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1805)     (
-> [1806](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1806)         out.var.columns.str.extract(pat, expand=False)
   [1807](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1807)         .fillna("")
   [1808](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1808)         .argsort(kind="stable")
   [1809](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1809)     ),
   [1810](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1810) ]
   [1812](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/anndata/_core/anndata.py:1812) return out
...
    [244](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/pandas/core/strings/accessor.py:244) if inferred_dtype not in allowed_types:
--> [245](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/pandas/core/strings/accessor.py:245)     raise AttributeError("Can only use .str accessor with string values!")
    [246](file://233-jnadaf-pc2/Users/pdjonk/Desktop/data/003_ANNOTATION/scarches-env/lib/site-packages/pandas/core/strings/accessor.py:246) return inferred_dtype

AttributeError: Can only use .str accessor with string values!

This is my working environment:

Python implementation: CPython
Python version       : 3.9.2rc1
IPython version      : 8.18.1

anndata : 0.8.0
glasbey : not installed
numpy   : 1.26.4
pandas  : 2.2.3
scarches: 0.6.1
scanpy  : 1.10.3

Thank you. Any help will be appreciated :)