title: How to sample on condition with pandas?
body: <p>I hava a dataframe df like the following:</p>
  
  <pre><code>   Col1      Col2
  0  1         T
  1  1         B 
  2  3         S
  3  2         A
  4  1         C
  5  2         A
  etc...
  </code></pre>
  
  <p>I would like to create two dataframes: df1 is a random sample of 10 rows such that Col2=='T'. df2 is df minus the rows in df1. </p>