code: def _cc_round(num, dp):
      
      num = round(num, dp)
      num = '{0:.{1}f}'.format(num, dp)
      return num
docs: Convenience function to take a float and round it to dp padding with zeros
      to return a string
  
      :type num: float
      :param num: Number to round
      :type dp: int
      :param dp: Number of decimal places to round to.
  
      :returns: str
  
      >>> print(_cc_round(0.25364, 2))
      0.25