title: Removing index column in pandas when reading a csv
body: <p>I have the following code which imports a CSV file.  There are 3 columns and I want to set the first two of them to variables.  When I set the second column to the variable "efficiency" the index column is also tacked on.  How can I get rid of the index column?</p>
  
  <pre><code>df = pd.DataFrame.from_csv('Efficiency_Data.csv', header=0, parse_dates=False)
  energy = df.index
  efficiency = df.Efficiency
  print efficiency
  </code></pre>
  
  <p>I tried using </p>
  
  <pre><code>del df['index']
  </code></pre>
  
  <p>after I set </p>
  
  <pre><code>energy = df.index
  </code></pre>
  
  <p>which I found in another post but that results in "KeyError: 'index' "</p>