title: Join the values only in a python dictionary
body: <p>I have a dictionary. I am trying to join the values only. This is the dictionary :- </p>
  
  <pre><code>d = {'x': 1, 'y': 2, 'z': 3} 
  </code></pre>
  
  <p>My expected output is <code>123</code>  (It should be 123 without any sorting)</p>
  
  <p>Code I am using :-</p>
  
  <pre><code>d = {'x': 1, 'y': 2, 'z': 3} 
  test = ' '.join(d.values())
  print test
  </code></pre>
  
  <p>It is showing error :- </p>
  
  <pre><code>Traceback (most recent call last):
    File "test.py", line 2, in &lt;module&gt;
      test = ' '.join(d.values())
  TypeError: sequence item 0: expected string, int found
  </code></pre>
  
  <p>I am using python 2.x</p>