/Demo/scripts/unbirthday.py
http://unladen-swallow.googlecode.com/ · Python · 107 lines · 79 code · 7 blank · 21 comment · 27 complexity · e11e82bf31f24468d37a75fc06b87731 MD5 · raw file
- #! /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 sys
- import time
- import 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()