Animal Doctor DB

#script by Sayan

import csv
f=open('vet.txt','a+')
x=len(f.readlines())+1

class Animal:
        total = 0
        def __init__(self,name,age,kind):
                self.name = name
                self.age = age
                self.kind = kind

                print('{0} is {1} yrs old'.format(self.name,self.age))
                print('Kind:  {0}'.format(self.kind))
                Animal.total = x

y='y'
while(y=='y'):


        name=raw_input('Enter you Pets name\n')
        age=raw_input('Enter its age\n')
        kind=raw_input('Kind of animal?\n')

        Animal(name,age,kind)
        print('\n\tTotal Animals in DB: {0}'.format(Animal.total))


        f.write('#{0},{1},{2}'.format(x,name,kind,age))
        f.write('\n')
        print"\n"
        y=raw_input("Again (y/n)")
        f.close()