Create a program which displays primes numbers in sieve of eratosthenes

Create a program that asks the user for an integer greater than or equal to 100. Generate a list of primes up to and including this number. Print the list to the screen on a single line. You may assume that the user will enter valid numeric input in the correct range.​ how to do in python

def makeprimes( upper ):
    count = 2
    primes = [1]
    
    while count <= upper:
        prime = True
        for i in range(2, count):
            if count % i == 0:
                prime = False
                break
        if prime:
            primes.append(count)
            
        count = count + 1
        
    return primes