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| 1 | +#! /usr/local/bin/python |
| 2 | + |
| 3 | +# Calculate your unbirthday count (see Alice in Wonderland). |
| 4 | +# This is defined as the number of days from your birth until today |
| 5 | +# that weren't your birthday. (The day you were born is not counted). |
| 6 | +# Leap years make it interesting. |
| 7 | + |
| 8 | +import sys |
| 9 | +import time |
| 10 | +import calendar |
| 11 | + |
| 12 | +def main(): |
| 13 | + # Note that the range checks below also check for bad types, |
| 14 | + # e.g. 3.14 or (). However syntactically invalid replies |
| 15 | + # will raise an exception. |
| 16 | + if sys.argv[1:]: |
| 17 | + year = eval(sys.argv[1]) |
| 18 | + else: |
| 19 | + year = input('In which year were you born? ') |
| 20 | + if year in range(100): |
| 21 | + print 'I\'ll assume that by', year, |
| 22 | + year = year + 1900 |
| 23 | + print 'you mean', year, 'and not the arly Christian era' |
| 24 | + elif year not in range(1850, 2000): |
| 25 | + print 'It\'s hard to believe you were born in', year |
| 26 | + return |
| 27 | + # |
| 28 | + if sys.argv[2:]: |
| 29 | + month = eval(sys.argv[2]) |
| 30 | + else: |
| 31 | + month = input('And in which month? (1-12) ') |
| 32 | + if month not in range(1, 13): |
| 33 | + print 'There is no month numbered', month |
| 34 | + return |
| 35 | + # |
| 36 | + if sys.argv[3:]: |
| 37 | + day = eval(sys.argv[3]) |
| 38 | + else: |
| 39 | + day = input('And on what day of that month? (1-31) ') |
| 40 | + if month == 2 and calendar.isleap(year): |
| 41 | + maxday = 29 |
| 42 | + else: |
| 43 | + maxday = calendar.mdays[month] |
| 44 | + if day not in range(1, maxday+1): |
| 45 | + print 'There are no', day, 'days in that month!' |
| 46 | + return |
| 47 | + # |
| 48 | + bdaytuple = (year, month, day) |
| 49 | + bdaydate = mkdate(bdaytuple) |
| 50 | + print 'You were born on', format(bdaytuple) |
| 51 | + # |
| 52 | + todaytuple = time.localtime(time.time())[:3] |
| 53 | + todaydate = mkdate(todaytuple) |
| 54 | + print 'Today is', format(todaytuple) |
| 55 | + # |
| 56 | + if bdaytuple > todaytuple: |
| 57 | + print 'You are a time traveler. Go back to the future!' |
| 58 | + return |
| 59 | + # |
| 60 | + if bdaytuple == todaytuple: |
| 61 | + print 'You were born today. Have a nice life!' |
| 62 | + return |
| 63 | + # |
| 64 | + days = todaydate - bdaydate |
| 65 | + print 'You have lived', days, 'days' |
| 66 | + # |
| 67 | + age = 0 |
| 68 | + for y in range(year, todaytuple[0] + 1): |
| 69 | + if bdaytuple < (y, month, day) <= todaytuple: |
| 70 | + age = age + 1 |
| 71 | + # |
| 72 | + print 'You are', age, 'years old' |
| 73 | + # |
| 74 | + if todaytuple[1:] == bdaytuple[1:]: |
| 75 | + print 'Congratulations! Today is your', nth(age), 'birthday' |
| 76 | + print 'Yesterday was your', |
| 77 | + else: |
| 78 | + print 'Today is your', |
| 79 | + print nth(days - age), 'unbirthday' |
| 80 | + |
| 81 | +def format((year, month, day)): |
| 82 | + return '%d %s %d' % (day, calendar.month_name[month], year) |
| 83 | + |
| 84 | +def nth(n): |
| 85 | + if n == 1: return '1st' |
| 86 | + if n == 2: return '2nd' |
| 87 | + if n == 3: return '3rd' |
| 88 | + return '%dth' % n |
| 89 | + |
| 90 | +def mkdate((year, month, day)): |
| 91 | + # Januari 1st, in 0 A.D. is arbitrarily defined to be day 1, |
| 92 | + # even though that day never actually existed and the calendar |
| 93 | + # was different then... |
| 94 | + days = year*365 # years, roughly |
| 95 | + days = days + (year+3)/4 # plus leap years, roughly |
| 96 | + days = days - (year+99)/100 # minus non-leap years every century |
| 97 | + days = days + (year+399)/400 # plus leap years every 4 centirues |
| 98 | + for i in range(1, month): |
| 99 | + if i == 2 and calendar.isleap(year): |
| 100 | + days = days + 29 |
| 101 | + else: |
| 102 | + days = days + calendar.mdays[i] |
| 103 | + days = days + day |
| 104 | + return days |
| 105 | + |
| 106 | +main() |
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