Find the 1000th prime number without defining any functions

prime.py

# Check for primes starting at 2 since 1 is not prime by definition            
number = 2                                                                     
                                                                               
# Store all primes in this list                                                
primes = []                                                                    
                                                                               
# Keep looking for primes until we find 1000 of them                           
while len(primes) < 1000:                                                      
    # Assume the number is prime until proven otherwise                        
    is_prime = True                                                            
                                                                               
    for prime in primes:                                                       
        # If there's no remainder, then the number was cleanly divided by a    
        # prime and is not a prime itself                                      
        if number % prime == 0:                                                
            # Flag it                                                          
            is_prime = False                                                   
            # Get out of this for-loop                                         
            break                                                              
                                                                               
    if is_prime:                                                               
        primes.append(number);                                                 
                                                                               
    # Now check the next number                                                
    number = number + 1                                                        
                                                                               
# Print the 1000th prime                                                       
print primes[-1]