title: Convert variable of dtype=<U14 to standard list
body: <p>I'm reading values from a csv using pandas and I've come across a format I've never seen before, to give an example:</p>
  <p>myval = array('[1.0, 0, 0, 0]', dtype='&lt;U14')</p>
  <p>I would like to convert myval into a list of integers/ floats, but nothing I try seems compatible with a variable of this datatype. Would appreciate any help.</p>