title: Join dictionary item, keys
body: <p>Please see below code snippet for join method (used Python 2.7.2):</p>
  
  <pre><code>iDict={'1_key':'abcd','2_key':'ABCD','3_key':'bcde','4_key':'BCDE'}
  '--'.join(iDict)
  </code></pre>
  
  <p>Result shown as </p>
  
  <pre><code>'2_key--1_key--4_key--3_key'
  </code></pre>
  
  <p>Please comment why only keys are joined? Also the sequence is not in order.</p>
  
  <p>Note - below are the individual methods.</p>
  
  <ul>
  <li><code>'--'.join(iDict.values())</code> ==> <code>'ABCD--abcd--BCDE--bcde'</code>  ==> the sequence is not in order</li>
  <li><code>'--'.join(iDict.keys())</code>   ==>  <code>'2_key--1_key--4_key--3_key'</code> ==> the sequence is not in orde</li>
  </ul>