birthday.py

#!/usr/bin/python3.2 -tt
# *-* coding: utf-8 *-*

allow_names = ['Mila', 'Ihor', 'Stas', 'Michel', 'Bogdan']
name = str(input('Enter your name: '))

def birthday(name):
  i = 0
  while i < len(allow_names):
    # Check name
    if allow_names[i] == name:
      print("Hello, " + name + '!!! You are in list invited!')
      i+=1
    else:
      exit('Hello, stranger! You are not in the list!')

# Check time
time = float(input('When the party start? '))
come = float(input('What time is it? '))
if   time == come:
  print('You came in time!')
elif time < come:
  exit("It's too fast! Come in later...")
elif time > come:
  exit("It's too late! Come to the next year...")

birthday(name)
print('Welcome to our party!')