title: Pandas style for loop not working correctly
body: <p>I have a dataframe in Pandas containing planet names and information about each planet. Planet names are stored under the column with the header 'planet'. I want to highlight rows of specific planets, Earth, Saturn, and Mars. For some reason, when I run this script and export as an Excel file, only the first planet in my highlight_planets list is highlighted. In this case, only Earth is highlighted (Saturn and Mars are not highlighted). If I move Saturn into the first position and Earth into the second position, only Saturn rows will be highlighted in the dataframe. How do I highlight all rows where my planet column contains Earth, Saturn, or Mars?</p>
  <p>Thanks.</p>
  <pre><code>def highlight_sentiment(row):
  
      highlight_planets = ['Earth', 'Saturn', 'Mars']
  
      for m in highlight_planets:
  
  
          if row['planet'] == m:
             return ['background-color: yellow'] * len(row)
          else:
             return ['background-color: white'] * len(row)
  
  df.style.apply(highlight_sentiment, axis=1)
  
  df = df.style.apply(highlight_sentiment, axis=1)
  df.to_excel(&quot;df_test.xlsx&quot;, index = False)
  </code></pre>