How do I sum two values in a dictionary using python? [closed]

Question

I am trying to sum the values in 6th key of a dictionary, the following is my script

import re import string import sys import fileinput import os import random import glob import getopt import collections

def portfolio(): # Listing all values

ValueList = [['20120101', '@@a', 'FRR', 'MSFT', 'Trade','100','20'],
             ['20120102', '@@a', 'FRR', 'AAPLR', 'Trade','110','30'],
             ['20120103', '@@a', 'FRR', 'INTLR', 'Quote','120','40'],
             ['20120104', '@@a', 'FRR', 'MSFT'R, 'Quote','130','50']]

# Adding Dictionary

dict = {}

for stkvalue in ValueList:
    val = string.split(stkvalue[0])
    noQts = val[-1]
    dict[noQts] = stkvalue

    # Sort the dictionary keys

    srtKeys =  dict.keys()
    srtKeys.sort()

    #print "%-20s  Number" % 'Name'
    #print "="*34

for noQts in srtKeys:
    name = dict[noQts][0]
    Number =  dict[noQts][1]
    num2 = dict[noQts][2]
    num3 = dict [noQts][3]
    num4 = dict [noQts][4]
    num5 = dict [noQts][5]
    num6 = dict [noQts][6]

    #print "%-20s  %s" %(name,Number,num2)
    #print name,Number,num2,num3,num4,num5
    print sum(num6)

portfolio()

The Error message I get is "TypeError: unsupported operand type(s) for +: 'int' and 'str'"

• How do I resolve this ?
• Using Sum(num6) doesnt work at all, is there any alternate solution ?

Answer 1

res = sum([int(x[6]) for x in ValueList])

if the values are integers.