Calculate age:
Takes input a) Future Date(optional) b)Birth Date
Validates for leap year and some basic input validations
vi age.py
#########START OF SCRIPT#########
from sys import argv
from datetime import datetime,timedelta
oddmonths = [ '01','05','07','08','10','12' ]
def getdata():
global clockyear
global clockmonth
global clockday
global iyear
global imonth
global iday
global ageyear
global agemonth
global ageday
ask = raw_input("\nDo you want to calc age at a certain date?...Press Y|y|yes:\t")
if ask == "":
print "Invalid Response...Exiting"
exit(1)
elif ask in ['Y', 'y', 'yes'] :
get = raw_input("\nPlease enter the from date as yyyy/mm/dd:\t")
if len(get)< 10:
print "Invalid Date...Exiting"
else:
clock = get.split("/")
clockyear = int(clock[0])
clockmonth = int(clock[1])
clockday = int(clock[2])
else:
clock = datetime.now()
clockyear = clock.year
clockmonth = clock.month
clockday = clock.day
#Assign input variables
getdetail = raw_input("\nEnter you date of birth as yyyy/mm/dd:\t")
input = getdetail.split("/")
iyear = int(input[0])
imonth = int(input[1])
iday = int(input[2])
if iyear > clockyear:
print "\nCal year cannot be > the birth year..Please Enter valid year\n"
exit(1)
#Assign age variables
ageyear = clockyear - iyear
agemonth = clockmonth - imonth
ageday = clockday - iday
getdata()
#Assign age variables
#ageyear = clockyear - iyear
#agemonth = clockmonth - imonth
#ageday = clockday - iday
#print "Your ageyear\t:",ageyear
#print "Your age month\t:",agemonth
#print "Your ageday\t:",ageday
##### Function checks for Leap Year
def leapyear(a):
if a % 400 == 0:
return True
elif a % 100 == 0:
return False
elif a % 4 == 0:
return True
else:
return False
#Calc month & year
def month(a,b):
if imonth < 0 or imonth > 12:
print "You Entered invalid month...Exiting."
exit(1)
elif a < imonth:
return(12+(a-imonth),b-1)
elif a > imonth:
return((a-imonth),b)
else:
return(0,b)
def prints(ageyear,agemonth,ageday):
print "\nYour age is:\t%s Years:\t%s Months:\t%s Days\n" % (ageyear,agemonth,ageday)
def age():
global imonth
global iyear
global iday
global ageyear
global agemonth
global ageday
global clockmonth
global clockday
if iday < 0 or iday > 31:
print "You Entered invalid day...Exiting."
exit(1)
elif clockmonth !=03 and ageday >= 0 and agemonth > 0:
prints(ageyear,agemonth,ageday)
elif clockmonth !=03 and ageday >= 0 and agemonth < 0:
agemonth,ageyear = month(clockmonth,ageyear)
prints(ageyear,agemonth,ageday)
elif clockmonth !=03 and ageday < 0 and (clockmonth-1) in oddmonths:
ageday = 31 + ageday
agemonth,ageyear = month((clockmonth-1),ageyear)
prints(ageyear,agemonth,ageday)
elif clockmonth !=03 and ageday < 0 and (clockmonth-1) not in oddmonths:
ageday = 30 + ageday
agemonth,ageyear = month((clockmonth-1),ageyear)
prints(ageyear,agemonth,ageday)
####Condition for Leap Year check
elif clockmonth == 03 and leapyear(clockyear):
if ageday >=0:
agemonth,ageyear = month((clockmonth),ageyear)
prints(ageyear,agemonth,ageday)
elif ageday <0:
ageday = 29 + ageday
agemonth,ageyear = month((clockmonth-1),ageyear)
prints(ageyear,agemonth,ageday)
elif clockmonth == 03 and not leapyear(clockyear):
print " I am in 03"
if ageday >=0:
agemonth,ageyear = month((clockmonth),ageyear)
prints(ageyear,agemonth,ageday)
elif ageday <0:
ageday = 28 + ageday
agemonth,ageyear = month((clockmonth-1),ageyear)
prints(ageyear,agemonth,ageday)
def main():
global imonth
global iyear
global iday
if imonth == 02 and leapyear(iyear) and iday >29:
print "You cannot have >29 days in Feb of a leapyear:\n"
print "Enter valid day:\n"
elif imonth == 02 and not leapyear(iyear) and iday >28:
print "You cannot have >28 days in Feb,if the year is not a leapyear:\n"
print "Enter valid day:\n"
else:
age()
main()
#########END OF SCRIPT#########
Output-1:
############
shaiks@MAC$py age.py
Do you want to calc age at a certain date?...Press Y|y|yes: y
Please enter the from date as yyyy/mm/dd: 2017/08/31
Enter you date of birth as yyyy/mm/dd: 2000/02/29
Your age is: 17 Years: 6 Months: 2 Days
Output-2:
############
shaiks@MAC$py age.py
Do you want to calc age at a certain date?...Press Y|y|yes: n
Enter you date of birth as yyyy/mm/dd: 2000/02/29
Your age is: 15 Years: 7 Months: 27 Days
Error Handling:
###############
shaiks@MAC$py age.py
Do you want to calc age at a certain date?...Press Y|y|yes: y
Please enter the from date as yyyy/mm/dd: 2017/08/31
Enter you date of birth as yyyy/mm/dd: 2000/02/31
You cannot have >29 days in Feb of a leapyear:
Enter valid day:
