title: ImportError: cannot import name 'stacked_violin' from 'scanpy.plotting._anndata'?
body: <p>Until a couple of days ago, my code using the scanpy library worked fine, but last night it broke and threw me a new error</p>
  <pre><code>Traceback (most recent call last):
    File &quot;./scanpy_normalization.py&quot;, line 4, in &lt;module&gt;
      import scanpy.api as sc
    File &quot;/usr/local/lib/python3.8/site-packages/scanpy/api/__init__.py&quot;, line 27, in &lt;module&gt;
      from . import pl
    File &quot;/usr/local/lib/python3.8/site-packages/scanpy/api/pl.py&quot;, line 1, in &lt;module&gt;
      from ..plotting._anndata import scatter, violin, ranking, clustermap, stacked_violin, heatmap, dotplot, matrixplot, tracksplot
  ImportError: cannot import name 'stacked_violin' from 'scanpy.plotting._anndata' (/usr/local/lib/python3.8/site-packages/scanpy/plotting/_anndata.py
  </code></pre>
  <p>I import scanpy as</p>
  <pre><code>import scanpy.api as sc
  </code></pre>
  <p>and I update to the latest version of scanpy (if any) everytime I run the code. Was there a change in the last couple of days that I missed? Help is appreciated!</p>