import pickle

def inputdate():
    print "This functions lets you enter a date and checks it"
    valid = False

    while not valid:
        mo = input("Please enter the month as an integer from 1 to 12: ")
        day = input("Please enter the day as an integer as appropriate: ")
        yr = input("Please enter the year as a four digit integer: ")

        if (type(mo) == int) and (type(day) == int) and (type(yr) == int) and\
        (1 <= mo <= 12) and (1 <= day <= 31) and (0 <= yr <= 9999):
            print "Your date ",mo,"/",day,"/",yr," is valid"
            return day, mo, yr
        else:
            print "Please re-enter a date that is valid"
    

print "This program will let the user enter birthdate, age and name for multiple people "
keepgoing = True
howmany = 0
outfile = open("dateage.txt","w")
print type(outfile)

while keepgoing:
    name = raw_input("Please enter the name of the person whose birthday you will enter: ")
    print "Now you can give me ",name,"'s birthday "
    d, m, y = inputdate()
    print "Finally, ",name,"'s age is: ",
    age = input()

    numyears = 2011 - y
    if numyears - 1 <= age <= numyears:
        print "age is reasonable for given birthdate "
    else:
        print "age is not reasonable for given birthdate "

    yn = raw_input("If you wish to enter more names, type Y.  If not, type N ")
    if yn == 'N':
        keepgoing = False

    pickle.dump(d, outfile)
    pickle.dump(m, outfile)
    pickle.dump(y, outfile)
    #pickle.dump(m, y, outfile) #only accepts one input at a time
    pickle.dump(age, outfile)
    pickle.dump(name, outfile)
    howmany += 1

print type(outfile)
outfile.close()
outfile = open('dateage.txt','r')
print "After open for r",type(outfile)
print "howmany is ",howmany 

while howmany > 0:
    day = pickle.load(outfile)
    mo = pickle.load(outfile)
    yr = pickle.load(outfile)
    ag = pickle.load(outfile)
    nm = pickle.load(outfile)

    print "The data stored in outfile is:"

    print "   ",nm," age ",ag\
          ," with birthday ",mo,"/",day," / ",yr
    howmany -= 1

outfile.close()