Python - Class Generator

#exemple 1

def fib():
    a,b=0,1
    while True:
        yield b
        a,b=b,a+b    
f=fib()
print(type(f))
for i in range(20):
    print(next(f),end=' ')
print()

#exemple 2

a = [0,1,2,3,4,5,6,7,8,9,10]
b = (x*x for x in a)
print(type(b))
for i in a: print(next(b),end=';')