Reference library

Comprehensions & generators

List/dict/set comprehensions, generator expressions, and lazy iteration.

3 matches

Generator Function to Yield an Infinite Counter in Python

This code demonstrates a generator function that yields an infinite sequence of integers starting from a given value, allowing lazy, memory-efficient iteration.

generators infinite sequences yield

Python

def infinite_counter(start=0):
    count = start
    while True:
        yield count
        count += 1

if __name__ == "__main__":
    counter = infinite_counter(5)
    for _ in range(5):
        print(next(counter))

14 0 Open

Comprehensions & generators easy

How to Create an Infinite Arithmetic Sequence Generator in Python

Build a memory-efficient generator that yields an infinite arithmetic progression and extract the first N values with list comprehension.

generators yield infinite-sequences

Python

"""Count generator infinite arithmetic progression"""


def arithmetic_counter(start=0, step=1):
    """Generate an infinite arithmetic sequence."""
    current = start
    while True:
        yield current
        current += step


if __name__ == "__main__":
    counter = arithmetic_counter(1, 3)
    result = [next(c…

14 0 Open

Comprehensions & generators easy

How to Reset Python's Random Seed for Deterministic Output

This code shows how to seed Python's random module to generate identical random sequences across runs, ensuring reproducibility.

random seeding deterministic

Python

import random

def seeded_random_sequence(seed, count=5, low=1, high=100):
    random.seed(seed)
    return [random.randint(low, high) for _ in range(count)]

if __name__ == "__main__":
    seed_value = 42
    first_run = seeded_random_sequence(seed_value)
    print("First run:", first_run)

    # Reset seed and gener…

12 0 Open

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