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Python Functional Python The Lambda Lambada Partial

challenge 4 of 4

the last challenge to finish this course

Finally, I need to see all of our prices with each discount applied. Use map() to create prices_10, prices_25, and prices_50 where you discount all of the prices with the appropriate discount.

here is my code:

discounts.py
from functools import partial

prices = [ 10.50, 9.99, 0.25, 1.50, 8.79, 101.25, 8.00]

def discount(price, amount):
    return price - price * (amount/100)

discount_10 = partial(discount, amount=10)
discount_25 = partial(discount, amount=25)
discount_50 = partial(discount, amount=50)

2 Answers

Steven Parker
Steven Parker
229,644 Points

It doesn't look like you've written any code yet for task 4.

If you're totally stuck, you might want to review the video about Map.

you are right, i didn't try

I have been trying of hours Help Please!

Hey Jim, not sure if you are still working on this; but, this worked for me for all four tasks. See you in class.

def discount(price, amount): return price - price * (amount/100)

from functools import partial discount_10 = partial( discount, amount=10 ) discount_25 = partial( discount, amount=25 ) discount_50 = partial( discount, amount=50 )

prices_10 = map(discount_10, prices) prices_25 = map(discount_25, prices) prices_50 = map(discount_50, prices)