text: """
                                  Counting Sundays
  
      You  are  given  the  following  information,  but you may prefer to do some
      research for yourself.
  
          *   1 Jan 1900 was a Monday.
          *   Thirty days has September,
              April, June and November.
              All the rest have thirty-one,
              Saving February alone,
              Which has twenty-eight, rain or shine.
              And on leap years, twenty-nine.
          *   A  leap  year occurs on any year evenly divisible by 4, but not on a
              century unless it is divisible by 400.
  
      How many Sundays fell on the first of the month during the twentieth century
      (1 Jan 1901 to 31 Dec 2000)?
  
                                  Answer: 171
      Helped me out:
          *   http://stackoverflow.com/a/1060330/7092954
  """
  
  from datetime import timedelta, date
  
  def daterange(start, finish):
      """Iterate over given date range"""
      for delta in range(int((finish-start).days)):
          yield start+timedelta(delta)
  
  START = date(1901, 1, 1)
  FINISH = date(2000, 12, 31)
  # pylint: disable=misplaced-comparison-constant
  SUNDAYS = [x for x in daterange(START, FINISH) if 1 == x.day and 1 == x.weekday()]
  print(len(SUNDAYS))
  