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"""Clean Code in Python - Chapter 7: Using Generators

> Idiomatic Iteration

"""

import logging

from itertools import tee

from statistics import median

logging.basicConfig(level=logging.INFO)

logger = logging.getLogger(__name__)

def produce_values(how_many):

for i in range(1, how_many + 1):

logger.debug("producing purchase %i", i)

yield i

def process_purchases(purchases):

min_, max_, avg = tee(purchases, 3)

return min(min_), max(max_), median(avg)

def main():

data = produce_values(7)

obtained = process_purchases(data)

logger.info("Obtained: %s", obtained)

assert obtained == (1, 7, 4)

if __name__ == "__main__":

main()