Generators in Python

Generators in Python — a practical guide to Python generators with clear examples you can reuse in real projects.

Python Tutorial Series (53/95). Prefer one article? Read the complete Python tutorial.

Short description

Generators pause and resume. Ideal for large streams without loading everything into memory.

Generator function

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

for value in countdown(3):
    print(value)