code: def next_monday_or_tuesday(dt):
      
      dow = dt.weekday()
      if dow == 5 or dow == 6:
          return dt + timedelta(2)
      elif dow == 0:
          return dt + timedelta(1)
      return dt
docs: For second holiday of two adjacent ones!
      If holiday falls on Saturday, use following Monday instead;
      if holiday falls on Sunday or Monday, use following Tuesday instead
      (because Monday is already taken by adjacent holiday on the day before)