import calendar

c = calendar.Calendar(firstweekday=calendar.SUNDAY)
year = 2016
month = 2
monthcal = c.monthdatescalendar(year, month)

try:
    fifth_monday = [day for week in monthcal for day in week if
                    day.weekday() == calendar.MONDAY and day.month == month][4]
    print(fifth_monday)
except IndexError:
    print('No date found')