title: Reading multiple lines from another file into a tuple
body: <p>I can't seem to pull each individual line from a .txt file into a tuple.  The 'city-data.txt' file is just a list of the 50 states, capitols, and their lat/longs.  I need to create a tuple of all the states.</p>
  
  <p>This is my code so far -</p>
  
  <pre><code>def read_cities(file_name):
      file_name = open('city-data.txt' , 'r')
      for line in file_name:
          road_map = ((line.split('\t')))
          return road_map
      file_name.close()
  
  print(read_cities('city-data.txt'))
  </code></pre>
  
  <p>When it's run, it only prints the very first line from the .txt file, as such:</p>
  
  <pre><code>['Alabama', 'Montgomery', '32.361538', '-86.279118\n']
  </code></pre>