Python Forum
Adding values with reduce() function from the list of tuples
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Adding values with reduce() function from the list of tuples
I've been trying to use reduce() function to add values in the list of tuples. I'm only interested to add and display the numbers, but I don't know how to access and operate only on the second column(numbers)

I've tried to do it using regular function and then the reduce()

What am I doing wrong?

import functools

list = [("Rachel",19),

def func(self):
    x = list[0][1]
    y = list[1][1]
    return x+y

func_x = func(self="")

ages_added = functools.reduce(lambda x,y:x[1][1]+y[1][1],list)
Larz60+ write Jan-05-2023, 12:28 PM:
Please post all code, output and errors (it it's entirety) between their respective tags. Refer to BBCode help topic on how to post. Use the "Preview Post" button to make sure the code is presented as you expect before hitting the "Post Reply/Thread" button
Fixed for you this time. Please use BBCode tags on future posts.

Messages In This Thread
Adding values with reduce() function from the list of tuples - by kinimod - Jan-05-2023, 11:34 AM

Possibly Related Threads…
Thread Author Replies Views Last Post
  Copying the order of another list with identical values gohanhango 7 1,140 Nov-29-2023, 09:17 PM
Last Post: Pedroski55
  Search Excel File with a list of values huzzug 4 1,236 Nov-03-2023, 05:35 PM
Last Post: huzzug
  Comparing List values to get indexes Edward_ 7 1,156 Jun-09-2023, 04:57 PM
Last Post: deanhystad
  reduce nested for-loops Phaze90 11 1,895 Mar-16-2023, 06:28 PM
Last Post: ndc85430
  user input values into list of lists tauros73 3 1,069 Dec-29-2022, 05:54 PM
Last Post: deanhystad
  function accepts infinite parameters and returns a graph with those values edencthompson 0 860 Jun-10-2022, 03:42 PM
Last Post: edencthompson
  AttributeError: 'list' object has no attribute 'values' ilknurg 4 14,966 Jan-19-2022, 08:33 AM
Last Post: menator01
  Need to parse a list of boolean columns inside a list and return true values Python84 4 2,106 Jan-09-2022, 02:39 AM
Last Post: Python84
  List of dataframe values beginning with x,y or z glidecode 3 1,933 Nov-08-2021, 10:16 PM
Last Post: glidecode
  How to pass list of values to a API request URL chetansaip99 0 3,524 Sep-28-2021, 07:37 AM
Last Post: chetansaip99

Forum Jump:

User Panel Messages

Announcement #1 8/1/2020
Announcement #2 8/2/2020
Announcement #3 8/6/2020