#  Columbus.py  Copyright (c) Kari Laitinen

#  http://www.naturalprogramming.com

#  2006-05-01  File created.
#  2009-01-22  class ISODate used in place of Date
#  2022-12-18  Converted to Python 3.

#  During compilation and execution, the file ISODate.py must be in
#  the same folder together with this program.

from ISODate import ISODate
from ISODate import DateDistance

date_of_discovery_of_america =  ISODate( 1492, 10, 12 )

date_of_first_moon_landing   =  ISODate( "1969-07-20" )

print( "\n   Christopher Columbus discovered America on %s"  \
      "\n   That was a %s"  %  ( date_of_discovery_of_america,
      date_of_discovery_of_america.get_day_of_week() ) )

print( "\n   Apollo 11 landed on the moon on %s"  \
      "\n   That was a %s"  %  ( date_of_first_moon_landing,
      date_of_first_moon_landing.get_day_of_week() ) )

distance_between  =  \
    date_of_discovery_of_america.get_distance_to(
                                  date_of_first_moon_landing )

print( "\n   America was discovered %d years, %d months, and %d days" \
      "\n   before the first moon landing.\n"  %  ( distance_between.years,
      distance_between.months, distance_between.days ) )