How do you use the generators?

I wrote a generator of simple numbers:
def primes(): prime = True i = 1 while True: i += 1 for j in range(2, i): if i % j == 0: prime = False if prime: yield i else: prime = True
But I don't know how to use it. I'm doing as a challenge:
x = primes() print(x)
The object is being released, not the number.
In case of such a challenge
print(next(primes()))
All the time on the way out, I get 2.Right. Use generators?

def primes(): prime = True i = 1 while True: i += 1 for j in range(2, i): if i % j == 0: prime = False if prime: yield i else: prime = True
No more than 100 simple numbers
http://ideone.com/wiVXOEfor p in primes():
if p > 100: break print(p)
Take out the first seven simple numbers:
http://ideone.com/sYrLpAp = primes()
for i in range(7):
print(next(p))