title: Read a list of files using Dask
body: <p>I found that Dask can read several <code>csv</code> files this way:</p>
  
  <pre><code>import dask.dataframe as dd
  df = dd.read_csv('myfiles.*.csv')  # doctest: +SKIP
  </code></pre>
  
  <p>But what if I want to load not all but some of them:</p>
  
  <pre><code>my_files = ['file1.csv', 'file3.csv','file7.csv']
  df = dd.read_csv(my_files)
  </code></pre>
  
  <p>But that doesn't work:</p>
  
  <blockquote>
    <p>ValueError: Length mismatch: Expected axis has 2 elements, new values
    have 3 elements</p>
  </blockquote>