rand_number.py

# -*- coding: utf-8 -*-
"""
Spyder Editor

This is a temporary script file.
"""

class RandomNumbers:
    def __init__(self, length, *, range_min = 0, range_max = 20):
        self.length = length
        self.range_min = range_min
        self.range_max = range_max
        self.num_requested = 0
        
    def __len__(self):
        return self.length
    
    def __next__(self):
        if self.num_requested >= self.length:
            raise StopIteration
            
        else:
            self.num_requested += 1
            return random.randint(self.range_min, self.range_max)