When should I use yield instead of return in Python?

Can you explain the difference between yield and return in Python?

Sure! In Python, 'return' sends a value back to the caller and exits the function, while 'yield' allows the function to return a value and pause its state, resuming later.

When should I use yield instead of return?

You should use 'yield' when you want to create a generator, which is useful for handling large datasets or streams of data without loading everything into memory at once.

Can you give me an example of using yield?

Of course! Here's a simple example:

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

This function will yield numbers from 1 to n one at a time.

What are the advantages of using yield?

Using 'yield' can save memory and improve performance, especially when dealing with large datasets, as it generates values on-the-fly instead of storing them all at once.