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Python Functional Python The Lambda Lambada Reduce

Functional python

When I'm running this code on my python compiler, it works fine and even outputs the correct answer, i.e 978.63.

Is the question asking me to do something else other than finding the product of values in each tuple and adding them up? Seriously at a loss here.

prices.py
from functools import reduce
from operator import add

prices = [
    (6.99, 5),
    (2.94, 15),
    (156.99, 2),
    (99.99, 4),
    (1.82, 102)
]

def product_sales(tup):
  return tup[0] * tup[1]

total = reduce(add,(list(map(product_sales,prices))))

1 Answer

total = reduce(add, map(product_sales, prices)) 
  1. You don't have to add the list function.
  2. You had one too many parentheses.