title: Python - How to change values in a list of lists?
body: <p>I have a list of lists, each list within the list contains 5 items, how do I change the values of the items in the list? I have tried the following:</p>
  
  <pre><code>    for [itemnumber, ctype, x, y, delay] in execlist:
          if itemnumber == mynumber:
              ctype = myctype
              x = myx
              y = myy
              delay = mydelay
  </code></pre>
  
  <p>Originally I had a list of tuples but I realized I cant change values in a tuple so I switched to lists but I still cant change any of the values. If I print ctype, x, y, delay, myctype, myx, myy, or mydelay from within the for loop it appears that everything is working but if I print execlist afterwards I see that nothing has changed.</p>