title: iLocation based boolean indexing on an integer type is not available
body: <p>I have an issue, i Want to get those rows which contains missing values. Using iloc and <code>pd.isnull</code>, for column 'Mileage' in my table. </p>
  
  <pre><code>import pandas as pd
  df=pd.read_csv('BikeList.csv')
  d1=df['Mileage']
  print(d1)
  print(pd.isnull(df['Mileage']))
  d2=df.iloc[pd.isnull(df['Mileage']),['Bike','Mileage']]
  </code></pre>
  
  <p>I am having this error, </p>
  
  <pre><code>iLocation based boolean indexing on an integer type is not available
  </code></pre>
  
  <p>
  
  <pre><code>import pandas as pd
  df=pd.read_csv('BikeList.csv')
  d1=df['Mileage']
  print(d1)
  print(pd.isnull(df['Mileage']))
  d2=df.iloc[pd.isnull(df['Mileage']),['Bike','Mileage']]
  </code></pre>