generators-yield-1.py

import time

# Everyone in queue, and their desired order
customers = [('Bob', 'Ham Sandwich'), ('Paul', 'Grilled Cheese'), ('Sally', 'Chicken Croissant')]


# make a sandwich, but pause(yield) to deliver it
def make_sandwiches():
    for customer in customers:
        time.sleep(1)  # making the sandwich for our customer
        yield (customer[0], customer[1])

sandwiches = make_sandwiches()

# deliver the sandwiches
for sandwich in sandwiches:
    print('Delivering sandwich:', sandwich[1], 'for', sandwich[0])