[OWKINxSCVERSE hack]: anndata-plot MVP

pyproject.toml

@@ -56,7 +56,7 @@ dependencies = [
     "tqdm",
     "scikit-learn>=1.1,<1.6",
     "statsmodels>=0.13",
-    "patsy!=1.0.0",                               # https://github.com/pydata/patsy/issues/215
+    "patsy!=1.0.0",                                                   # https://github.com/pydata/patsy/issues/215
     "networkx>=2.8",
     "natsort",
     "joblib",
@@ -65,8 +65,9 @@ dependencies = [
     "pynndescent>=0.5",
     "packaging>=21.3",
     "session-info2",
-    "legacy-api-wrap>=1.4",                       # for positional API deprecations
+    "legacy-api-wrap>=1.4",                                           # for positional API deprecations
     "typing-extensions; python_version < '3.13'",
+    "anndata-plot @ git+https://github.com/scverse/anndata-plot.git",
 ]
 dynamic = [ "version" ]
 
@@ -139,6 +140,8 @@ dev = [
     "pre-commit", # static checking
     "towncrier",  # release note management
 ]
+
+
 # Algorithms
 paga = [ "igraph" ]
 louvain = [ "igraph", "louvain>=0.6.0,!=0.6.2" ] # Louvain community detection
@@ -160,6 +163,8 @@ packages = [ "src/testing", "src/scanpy" ]
 source = "vcs"
 raw-options.version_scheme = "release-branch-semver"
 
+[tool.hatch.metadata]
+allow-direct-references = true
 [tool.pytest.ini_options]
 addopts = [
     "--import-mode=importlib",

src/scanpy/plotting/_stacked_violin.py

@@ -3,12 +3,18 @@
 import warnings
 from typing import TYPE_CHECKING
 
+import anndata_plot as adp
+import holoviews as hv
+
+_ = adp  # so linters don't complain
 import numpy as np
 import pandas as pd
 from matplotlib import pyplot as plt
 from matplotlib.colors import is_color_like
 from packaging.version import Version
 
+import scanpy as sc
+
 from .. import logging as logg
 from .._compat import old_positionals
 from .._settings import settings
@@ -23,6 +29,9 @@
     savefig_or_show,
 )
 
+hv.extension("bokeh")
+
+
 if TYPE_CHECKING:
     from collections.abc import Mapping, Sequence
     from typing import Literal, Self
@@ -847,6 +856,19 @@ def stacked_violin(
         yticklabels=yticklabels,
         linewidth=kwds.get("linewidth", _empty),
     ).legend(title=colorbar_title)
+
+    hv.extension("matplotlib")
+
+    adata = sc.datasets.pbmc3k()
+    sc.pp.neighbors(adata)
+    sc.tl.umap(adata)
+    sc.tl.leiden(adata)
+    print(adata)
+
+    return hv.Scatter(adata, "obsm.X_umap.0", ["obsm.X_umap.1", "obs.leiden"]).opts(
+        color="obs.leiden", cmap="Category20"
+    )
+
     if return_fig:
         return vp
     vp.make_figure()