title: importing cuml in a docker image
body: <p>I'm building a custom rapidsai docker image based on its devel image. Here is the docker file.</p>
  <pre><code>FROM rapidsai/rapidsai-dev:0.19-cuda11.0-devel-ubuntu18.04-py3.7
  
  # Defining working directory and adding source code
  WORKDIR /usr/src/app
  
  RUN echo &quot;Make sure cuml is installed:&quot;
  RUN python -c &quot;import cuml&quot;
  </code></pre>
  <p>But when I built it with this command,</p>
  <pre><code>nvidia-docker build . -t test
  </code></pre>
  <p>it returns an error saying:</p>
  <pre><code>Step 4/4 : RUN python -c &quot;import cuml&quot;
   ---&gt; Running in 553d12bf7e68
  Traceback (most recent call last):
    File &quot;&lt;string&gt;&quot;, line 1, in &lt;module&gt;
  ModuleNotFoundError: No module named 'cuml'
  </code></pre>
  <p>It seems that it can't recognize cuml library which is already a part of the libraries of the base image. Why it can't import it?</p>