title: Error: install mglearn
body: <p>I have used "pip install mglearn" and "conda install mglearn". 
  But it shows me the following error:</p>
  
  <pre><code>Solving environment: failed
  PackagesNotFoundError: The following packages are not available from current channels:
    - mglearn
  Current channels:
    - https://conda.anaconda.org/conda-forge/win-64
    - https://conda.anaconda.org/conda-forge/noarch
    - https://repo.continuum.io/pkgs/main/win-64
    ...
    - https://repo.continuum.io/pkgs/msys2/win-64
    - https://repo.continuum.io/pkgs/msys2/noarch
  </code></pre>
  
  <p>I have "Python 3.6.3 :: Anaconda custom (64-bit)"</p>