title: Add a column to a Dataframe that will take the value True or False with a function
body: <p>I would like to add a column 'is_drama' to df that will take the value True or False depending on whether the content belongs to the Dramas category on Netflix in the colums listed_in</p>
  <p>Can you tell me what the function would be and how I could add this new column to my dataframe? Thanks</p>
  <pre><code>def drama(words):
    if 'Drama' in words:
      return 'True'
    else:
      return'False'
  
  for i in df.listed_in:
    print(drama(i))
  
  </code></pre>