class Bird:
    count = 0
    def __init__(self, chat):
        self.sound = chat
        Bird.count += 1
    def talk(self):
        return self.sound
from Bird import *
print('\nClass Instances Of:\n', Bird.__doc__)
polly = Bird('Squawk, squawk!')
print('\nNumber Of Birds:', polly.count)
print('Polly Says:', polly.talk())
harry = Bird('Tweet,tweet!')
print('\nNumber Of Birds:', harry.count)
print('Harry Says:', harry.talk())
