title: How to add values to a new column in pandas dataframe?
body: <p>I want to create a new named column in a Pandas dataframe, insert first value into it, and then add another values to the same column:</p>
  
  <p>Something like:</p>
  
  <pre><code>import pandas
  
  df = pandas.DataFrame()
  df['New column'].append('a')
  df['New column'].append('b')
  df['New column'].append('c')
  
  etc.
  </code></pre>
  
  <p>How do I do that?</p>