Jason's day

fri13.py

Months = ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec']
Days = [31,29,31,30,31,30,31,31,30,31,30,31]
DateDict = dict(zip(Months,Days))
WeekDayList = ["Sunday","Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]
weekinitializer = [0,0,0,0,0,0,0]
monthinitializer = [0,0,0,0,0,0,0,0,0,0,0,0]
Thirteens = dict(zip(WeekDayList, weekinitializer))
JasonCount = []
JasonMonthCount = dict(zip(Months, monthinitializer))

# 2012,1,1,Sunday
weekdayiter = 0
StartYear = 2012
EndYear = 3012

for year in range(StartYear, EndYear+1):
    for month in Months:
        for day in range(1, DateDict[month]+1):
            if month == 'Feb' and day == 29 and year%4 != 0:
                continue
            if WeekDayList[weekdayiter] == 'Friday' and day == 13:
                jasondate = "%d %s %d Fri" % (year, month, day)
#                 print jasondate
                JasonCount.append(jasondate)
                JasonMonthCount[month] += 1
            if day == 13:
                Thirteens[WeekDayList[weekdayiter]] += 1
            if weekdayiter != 6:
                weekdayiter += 1
            else:
                weekdayiter = 0

print "\n%s\n\tFrom %d to %d...\n%s\n" % (40*'#', StartYear, EndYear, 40*'#')
for day in WeekDayList:
    print "%s 13th: %d counts" % (day, Thirteens[day])
print 40*'-'
print "Jason's Friday 13th comes %d times!" % len(JasonCount)
for month in Months:
    print "Friday 13th appears in %s: %d times" % (month, JasonMonthCount[month])