title: How to get information from a file into a tuple
body: <p>I had to make a file : planets.txt with information about planets. The file looks like this:</p>
  
  <pre><code>Planet1 100 200
  
  planet2 200 300
  
  planet3 400 250
  </code></pre>
  
  <p>I have to write a function in python that returns a list with tuples of this information like this :</p>
  
  <pre><code>[(100,200),(200,300),(400,250)]
  </code></pre>
  
  <p>The problem is that I don't know how to write this function. Is there anyone who can help me?
  Thank you very very much !</p>