#! /usr/bin/env python # Calculate your unbirthday count (see Alice in Wonderland).# This is defined as the number of days from your birth until today# that weren't your birthday.  (The day you were born is not counted).# Leap years make it interesting. import sysimport timeimport calendar def main():    # Note that the range checks below also check for bad types,    # e.g. 3.14 or ().  However syntactically invalid replies    # will raise an exception.    if sys.argv[1:]:        year = int(sys.argv[1])    else:        year = int(raw_input('In which year were you born? '))    if 0<=year<100:        print "I'll assume that by", year,        year = year + 1900        print 'you mean', year, 'and not the early Christian era'    elif not (1850<=year<=2002):        print "It's hard to believe you were born in", year        return    #    if sys.argv[2:]:        month = int(sys.argv[2])    else:        month = int(raw_input('And in which month? (1-12) '))    if not (1<=month<=12):        print 'There is no month numbered', month        return    #    if sys.argv[3:]:        day = int(sys.argv[3])    else:        day = int(raw_input('And on what day of that month? (1-31) '))    if month == 2 and calendar.isleap(year):        maxday = 29    else:        maxday = calendar.mdays[month]    if not (1<=day<=maxday):        print 'There are no', day, 'days in that month!'        return    #    bdaytuple = (year, month, day)    bdaydate = mkdate(bdaytuple)    print 'You were born on', format(bdaytuple)    #    todaytuple = time.localtime()[:3]    todaydate = mkdate(todaytuple)    print 'Today is', format(todaytuple)    #    if bdaytuple > todaytuple:        print 'You are a time traveler.  Go back to the future!'        return    #    if bdaytuple == todaytuple:        print 'You were born today.  Have a nice life!'        return    #    days = todaydate - bdaydate    print 'You have lived', days, 'days'    #    age = 0    for y in range(year, todaytuple[0] + 1):        if bdaytuple < (y, month, day) <= todaytuple:            age = age + 1    #    print 'You are', age, 'years old'    #    if todaytuple[1:] == bdaytuple[1:]:        print 'Congratulations!  Today is your', nth(age), 'birthday'        print 'Yesterday was your',    else:        print 'Today is your',    print nth(days - age), 'unbirthday' def format((year, month, day)):    return '%d %s %d' % (day, calendar.month_name[month], year) def nth(n):    if n == 1: return '1st'    if n == 2: return '2nd'    if n == 3: return '3rd'    return '%dth' % n def mkdate((year, month, day)):    # Januari 1st, in 0 A.D. is arbitrarily defined to be day 1,    # even though that day never actually existed and the calendar    # was different then...    days = year*365                 # years, roughly    days = days + (year+3)/4        # plus leap years, roughly    days = days - (year+99)/100     # minus non-leap years every century    days = days + (year+399)/400    # plus leap years every 4 centirues    for i in range(1, month):        if i == 2 and calendar.isleap(year):            days = days + 29        else:            days = days + calendar.mdays[i]    days = days + day    return days if __name__ == "__main__":    main()