title: How to append a letter in front of python list element without indicating ''
body: <p>I stored the string values into the Python list. Then I want to pass this list values to Solidity where the data type needed is byte32[]. So the question is how to declare a char 'b' without indicating '' and append it in front of every element? </p>
  
  <p>The python variable</p>
  
  <p><code>name = ['Ken','Rose']</code></p>
  
  <p>The name variable that need to be format as below</p>
  
  <p><code>sol_par = [b'Ken',b'Rose']</code></p>