title: How to generate a list of lists with random numbers of the same length
body: <p>How do you generate a random list of lists? I can generate a random list using the following <code>[random.sample(range(80), 20)]</code>. </p>
  
  <p>You can use the <code>*</code> function to make it list of lists but the numbers aren't random for each list. I can find answers relating to the creation of random list of lists that produce variable lengths but I can't find anything that will produce random numbers with the same length.</p>