old_contents: from quantuccia import united_kingdom_is_business_day as c_function
  
  
  def united_kingdom_is_business_day(dt):
      y = dt.year
      m = dt.month
      d = dt.day
      print(y, m, d)
      return c_function(y, m, d)
  
new_contents: from quantuccia import united_kingdom_is_business_day as c_function
  
  
  def united_kingdom_is_business_day(dt):
      y = dt.year
      m = dt.month
      d = dt.day
      return c_function(y, m, d)
  
subject: Remove debug print line.