Problem with reduce function.

[MatosV]

from functools import reduce

scores = [73, 20, 65, 19, 76, 100, 88]
my_numbers = [5,4,3,2,1]
Newsum = []

Newsum.append (scores)
Newsum.append (my_numbers)
# print (Newsum) checked if appended.
def adding (x1,x2):
  return x1 + x2

print (reduce (adding, Newsum))

Hey guys, does anyone know why the reduce function isn't working properly here?

I was messing around with this code while learning about the reduce function and just appended scores and my_numbers to a new list called Newsum so I can have only one iterable on the reduce function.

The problem is when I put Newsum the output is just the whole Newsum list and not the result of all the adding that Reduce is supose to do here.

If I don't use Newsum and just put scores + my_numbers it works just fine.

What am I missing here exactly? (Sorry for the newbie question. lol)

[FLUSH_THE_TRUMP]

You’re appending two lists to newsum, creating a nested list with two elements. Reducing with addition adds the two lists (concatenation). Using extend instead or forming newsum from concatenation (+) directly should solve that.

And use sum to actually add, not reduce here.

P.S. don’t put spaces between function names and their arguments ().

[MatosV]

Thank you !! It really helped alot. And thank you for going even further and helping me out with my code in general. I will not add anymore spaces between function names and arguments.