title: Pandas DatetimeIndex string format conversion from American to European
body: <p>Ok I have read some data from a CSV file using:</p>
  
  <pre><code>df=pd.read_csv(path,index_col='Date',parse_dates=True,dayfirst=True)
  </code></pre>
  
  <p>The data are in European date convention format <code>dd/mm/yyyy</code>, that is why i am using <code>dayfirst=True.</code></p>
  
  <p>However, what i want to do is change the string format appearance of my dataframe index df from the American<code>(yyyy/mm/dd)</code> to the European format<code>(dd/mm/yyyy)</code> just to visually been consistent with how i am looking the dates.</p>
  
  <p>I could't find any relevant argument in the <code>pd.read_csv</code> method.</p>
  
  <p>In the output I want a dataframe in which simply the index will be a datetime index visually consistent with the European date format. </p>
  
  <p>Could anyone propose a solution? It should be straightforward, since I guess there should be a pandas method to handle that, but i am currently stuck.</p>