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Start your free trialJohn Shockey
45,061 Points[SOLVED] Completely stuck on task 4 of 4
I'm lost and don't know where to go from here.
from operator import add
from functools import reduce
prices = [
(6.99, 5),
(2.94, 15),
(156.99, 2),
(99.99, 4),
(1.82, 102)
]
def product_sales(prices):
return prices[0] * prices[1]
total = map(product_sales, prices) + reduce(product_sales, [ ])
1 Answer
Steven Parker
231,108 PointsYou're close...
You figured out the part about using map to generate the totals: map(product_sales, prices)
Remember that reduce applies a function to a list, and you're creating the list with map. And you imported the add function already, so you just need to pass the function and the list to reduce:
total = reduce( add, map(product_sales, prices) )
John Shockey
45,061 PointsJohn Shockey
45,061 PointsAhhh gotcha. Thanks!