title: 'Timestamp' object has no attribute 'timestamp'
body: <p>I'm following a course where I have to convert a date to a unix timestamp.</p>
  
  <pre><code>import pandas as pd
  
  df = pd.read_csv('file.csv')
  print type(df.iloc[-1].name)
  </code></pre>
  
  <p><strong>class 'pandas.tslib.Timestamp'</strong></p>
  
  <pre><code>ts = df.iloc[-1].name.timestamp()
  </code></pre>
  
  <p><strong>AttributeError: 'Timestamp' object has no attribute 'timestamp'</strong></p>