title: Prettytable module doesn't render properly when the numbers of rows are huge
body: <p>I am trying to print almost 100 rows using Prettytable to slack channel.</p>
  <p>Before sending it to slack channel , I am modifying the table to string and sending ::
  Finaltable = '````' + table.get_string() + '```'</p>
  <p>But the data is very dislocated. It works fine when the rows are 20-30.
  Is there any other module that can help me?</p>