title: How to replace '&amp;' with just '&'
body: <p>I'm trying to write a json to csv - using Python 3.6 - and the json contains <code>&amp;amp;</code>.</p>
  
  <p>How can I write just plain ampersands (<code>&amp;</code>) instead of <code>&amp;amp;</code>?</p>
  
  <p>I've tried <code>str.replace</code> using a variety of escapes, and also some regex, all to no avail. Those <code>&amp;amp;</code> s just won't budge!</p>