# howto: detect input error (using exception)

from datetime import date
import sys

def get_input(ask):
  if sys.version_info[0] < 3 or sys.version_info[1] < 4:
    temp = raw_input(ask)
  else:
    temp = input(ask)
  return temp

def get_year():
  year = date.today().strftime("%Y")
  return int(year)

print("This is "+"awesome!")
name = get_input("Please enter your name: ")
print("Hello, " + name + "!")
year = get_input("Please enter the year you were born: ")
try :
  test = int(year)
  print("You were born in year " + year + "?" )
  age1 = get_year() - test
  print("That means you are " + str(age1) + " years old!")
except ValueError :
  print("Is '" + year + "' a valid year?")