Getting prime numbers from 1000 to 0

primes.py

def is_prime(n):
    count = 2
    if n < count:
        return False
    else:
        while count < n:
            if n % count == 0:
                return False
            else:
                count += 1
        else:
            return True

number = 1000       
while number > 0:
    if is_prime(number):
        print(number)
    number -= 1