title: Python - Add a key (string) in a numpy array filled with float
body: <p>I have a big array named <strong>A</strong> of arrays which follows the following structure :</p>
  
  <pre><code>[ [0.453,0.5452,0.252], [0.411,0.352,0.119], [...], ... , [...] ]
  </code></pre>
  
  <p>I have an other array named <strong>B</strong> with the same length but filled with string. For example :</p>
  
  <pre><code>['toto1','toto2',...,'totoN']
  </code></pre>
  
  <p>Now I would like to associate each array of <strong>A</strong> with a string of <strong>B</strong>. So either like this : </p>
  
  <pre><code>[ ['toto1',0.453,0.5452,0.252], ['toto2',0.411,0.352,0.119], [...], ... , [...] ]
  </code></pre>
  
  <p>Or :</p>
  
  <pre><code>{'toto1':[0.453,0.5452,0.252],'toto2':[0.411,0.352,0.119],...}
  </code></pre>
  
  <p>depending of what it is possible to do and the most easiest way to do it.</p>
  
  <p>First, is it possible to do this kind of thing ? If yes, could you please help me to figure out how I can achieve that ? </p>
  
  <p>Thank you very much in advance</p>