title: Convert numpy binary string array back to string
body: <p>I have a numpy binary array like this:</p>
  
  <pre><code>np_bin_array = [0 1 0 0 1 0 0 0 0 1 1 0 0 1 0 1 0 1 1 0 1 1 0 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
  </code></pre>
  
  <p>It was 8-bit string characters of a word originally, starting from the left, with 0's padding it out.</p>
  
  <p>I need to convert this back into strings to form the word again and strip the 0's and the output for the above should be 'Hello'.</p>
  
  <p>Thanks for your help!</p>