#2946 and #3444

[keller-mark]

This PR combines the changes from #2946 and #3444

[codecov]

Codecov Report

Attention: Patch coverage is 93.87755% with 3 lines in your changes missing coverage. Please review.

Project coverage is 75.51%. Comparing base (6c89e1d) to head (3a904a4).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/scanpy/neighbors/_backends/pairwise.py	89.28%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3446      +/-   ##
==========================================
+ Coverage   75.45%   75.51%   +0.06%     
==========================================
  Files         113      115       +2     
  Lines       13243    13292      +49     
==========================================
+ Hits         9992    10037      +45     
- Misses       3251     3255       +4     

Files with missing lines	Coverage Δ
src/scanpy/neighbors/__init__.py	80.31% <100.00%> (+0.10%)	⬆️
src/scanpy/neighbors/_types.py	100.00% <100.00%> (ø)
src/scanpy/tools/__init__.py	91.30% <ø> (ø)
src/scanpy/tools/_types.py	100.00% <100.00%> (ø)
src/scanpy/tools/_umap.py	73.52% <100.00%> (+4.17%)	⬆️
src/scanpy/neighbors/_backends/pairwise.py	89.28% <89.28%> (ø)

... and 1 file with indirect coverage changes

[keller-mark]

rm -rf .venv/

# Run tests with python 3.12 + normal env
export UV_PYTHON="3.12"
uv venv
source .venv/bin/activate
uv sync --extra test

uv run --no-sync pytest tests/test_plotting.py
# This passes

deactivate
rm -rf .venv/

# Run tests with python 3.10 + min-deps env
export UV_PYTHON="3.10"
uv venv
source .venv/bin/activate
uv pip install  --compile scikit-image "dask[array]==2022.9.2.*" zarr "leidenalg==0.9.0.*" "igraph==0.10.*" profimp pytest-cov pytest-mock pytest-nunit "pytest==8.2.*" towncrier pre-commit setuptools_scm typing-extensions "legacy-api-wrap==1.4.*" session-info2 "packaging==21.3.*" "umap-learn==0.5.*"  joblib natsort "networkx==2.7.*" patsy "statsmodels==0.13.*" "scikit-learn==1.1.*" tqdm "h5py==3.7.*" "seaborn==0.13.*" "scipy==1.8.*" "pandas==1.5.*" "matplotlib==3.6.*" "numpy==1.24.*" "anndata==0.8.*" "scanpy @ ."

uv run --no-sync pytest tests/test_plotting.py
# This fails