title: How to check if all items in a sub-list are in a list? Python
body: <p>my question is pretty much as above:</p>
  
  <p>if you have 2 lists as below, how can you check if all items in the first list are in the second list.
  eg</p>
  
  <pre><code>list_one=[1,2,3]
  list_two=[1,2,3,4]
  </code></pre>
  
  <p>my current attempt is just "if all list_one in list_two:"</p>
  
  <p>but this condition never seems to be filled and so nothing further takes place. Any help would be appreciated thanks :)</p>