Python · Iterators, modules and the standard library

yield

Turns a function into a generator that produces values lazily.

pythonRunnable example python course

Syntax

yield value

Example

Open in the lab

def countdown(n):
    while n > 0:
        yield n
        n -= 1
print(list(countdown(3)))

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.