shifts a given number by a pseudo-random value to make it feel less arbitrary.

NaturaliseShift.py

import random
import argparse
import sys

def naturaliseShift(num):
        magnitude = int(num / 15)
        shift = random.randint(-magnitude, magnitude)
        return num + shift
def bulk_mode():
        nums = []
        for line in sys.stdin:
                nums.append(int(line))

        if sys.stdout.isatty():
                print()

        for n in nums:
                print(naturaliseShift(n))

if __name__ == "__main__":
        parser = argparse.ArgumentParser(description="Naturalise Numbers")
        parser.add_argument("-b", "--bulk", "-bulk", action="store_true", help="Bulk mode")
        args = parser.parse_args()

        if args.bulk:
                bulk_mode()
        else:
                input = int(input("Enter a number: "))
                print(naturaliseShift(input))