title: Return value of os.path in Python
body: <p>For this code:</p>
  
  <pre><code>import os
  a=os.path.join('dsa','wqqqq','ffff')
  print a
  print os.path.exists('dsa\wqqqq\ffff') #what situation this will be print True?
  </code></pre>
  
  <p>When will os.path.exists('what') print <code>True</code>?</p>