title: Add elements in a list at the n index of a other list
body: <pre><code>calibres_prix =['115-135', '1.87'], ['136-165', '1.97'], ['150-180', '1.97'], 
      ['190-220', '1.97'], ['80-95', '1.42'], ['95-115', '1.52'], ['150-180', '1.82'], 
      ['115-135', '1.72'], ['136-165', '1.82'], ['150-180', '1.82'], ['190-220', '1.82'], 
      ['80-95', '1.42'], ['95-115', '1.72'], ['115-135', '1.92'],  ['136-165', '2.02'], 
      ['150-180', '2.02'], ['190-220', '2.02'], ['80-95', '1.27'], ['95-115', '1.57'],
      ['115-135', '1.77'], ['136-165', '1.87'],  ['150-180', '1.87'], ['190-220', '1.87'], 
      ['80-95', '1.37'], ['95-115', '1.67'], ['115-135', '1.87'], ['136-165', '1.97'],
      ['190-220', '1.82'], ['150-180', '1.97'], ['190-220', '1.97'], ['80-95', '1.22'], 
      ['95-115', '1.45'], ['115-135', '1.65'], ['136-165', '1.82'], ['95-115', '1.52']......
  
  
  varieties=[&quot;GOLDEN&quot;,&quot;GALA&quot;,&quot;OPAL&quot;,&quot;GRANNY&quot;,&quot;CANADE GRISE&quot;, &quot;PINK ROSE&quot;,
             &quot;CHANTECLER&quot;,&quot;RED&quot;,&quot;GOLDRESH&quot;,&quot;BRAEBURN&quot;,&quot;STORY&quot;]
  </code></pre>
  <p>Hi everbody,
  I want to insert to the list calibres_prix the name of the variety.
  To the calibres_prix [0:23] the varieties[0], to  the calibres_prix [24:47] the varieties[1], etc .... i have 264 lists for calibres_prix</p>
  <p>I want this output :</p>
  <pre><code>['GOLDEN','115-135', '1.87']
  ....
  ['GALA','190-220', '1.97']
  </code></pre>
  <p>I try this:</p>
  <pre><code>for i in range(0,len(calibres_prix),24):
      j=i+24
      for l in range(0,len(varieties),1):
          for c in calibres_prix[i:j]:
              c.insert(0,varieties[l])
  </code></pre>