Python prime number checker?

Hi, so im writing a program to check if a number is prime. It works for most numbers, but for example, it says 27 is prime (which it is not). My code is:

for possiblePrime in range(2, possiblePrime):

if possiblePrime%i == 0: print(possiblePrime, "is not prime.") break

else: print(possiblePrime, "is prime.") break

Why is 27 returning as prime?