title: Read 1st column, 2nd column, and nth column to last column of panda dataframe
body: <p>I have a pandas dataframe <code>df</code>. </p>
  
  <p>There are 27 columns in <code>df</code>.</p>
  
  <p>I want to read the 1st, 2nd and 10th to the last columns of <code>df</code>. I can do this <code>df.iloc[0,1,9,10,11,.....,26]</code> but this is too tedious to type if the dataframe has many columns. What is a more elegant way to read the columns?</p>
  
  <p>I am using python v3.7</p>