Example of sensor data simulator with timestamp and random data. Provides example on zip, iterable, iterators and timer

sensor_simulator.py

'''Example of how to simulate sensor data'''

import datetime
import itertools
import random
import time


class Sensor:
    '''Sensor simulator

    Simulates sensor with random data.
    In a real world data will come from a real
    sensor.
    '''

    def __iter__(self):
        return self

    def __next__(self):
        return random.random()


def main():
    '''Main driver of the module'''

    sensor = Sensor()
    # create endless datetime iterator
    timestamp = iter(datetime.datetime.today, None)

    def data():
        '''Generates combination of timestamp and sensor data

        Returns:
            tuple of time and sensor data
        '''

        return zip(timestamp, sensor)

    # run forever
    # for stamp, value in data():

    # run only 10 times
    for stamp, value in itertools.islice(data(), 10):
        print(stamp.strftime('%A, %b %d, %Y %H:%M:%S'), value)
        time.sleep(1)


if __name__ == '__main__':
    main()