title: How to get the first value in a Python dictionary
body: <p>I have a dictionary like this:  </p>
  
  <pre><code>myDict = {  
      'BigMeadow2_U4': (1609.32, 22076.38, 3.98),  
      'MooseRun': (57813.48, 750187.72, 231.25),  
      'Hwy14_2': (991.31, 21536.80, 6.47)  
  }
  </code></pre>
  
  <p>How can I get the first value of each item in my dicitionary?</p>
  
  <p>I want in the end a list:</p>
  
  <pre><code>myList = [1609.32,57813.48,991.31]
  </code></pre>