Can you give an example of using the standard generator from Python's built-in capabilities?

In Python, a standard generator is a function that uses the keyword yield to produce values step-by-step without creating the entire list in memory.

Here's an example of a simple generator that returns numbers from 0 to n-1:

def count_up_to(n):
    count = 0
    while count < n:
        yield count
        count += 1

for number in count_up_to(5):
    print(number)

Output:

0
1
2
3
4

This approach is efficient when working with large amounts of data, as values are generated on demand.