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Any guidance is appreciated.
Finally, we're ready to find our totals. Create a variable named total. Use map() to find the per-product totals for each item in prices, then use reduce (and add) to find the total value.
My solution is attached.
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(attribute): return attribute * attribute total = list(map(product_sales, prices)) total = reduce(add, total)
Craig DennisTreehouse Teacher
Well...our test is currently being a little overly pedantic.
Try to collapse that last bit into one single line.
total = reduce(add, map(product_sales, prices))
I'll see if I can't clean that up a bit better. Your code is fine, the only thing that you don't really need is the coercion to a list. Reduce takes an iterable. So it only needs to iterate once through that way.