Python – sum all elemeents in list

Question

Good evening good people.
i am asking for assistance if possible.
i am trying to create a simple shopping list that sums the total in the end.
however for some reson i cannont understand how i can sum all elements in my list. there are no limits on how many items one can add, so the sum should add all values in range etc.

how can i make it so my code prints out the summarized value of all numbers under "sum"

my code is as follows

    import math
import pandas as pd
myTup = ()
myList = []


def Innlesning():#FUNKSJON FOR INNLESING AV BRUKERNDATA
 global myList #DEFINERER LISTE SOM GLOBAL VARIABEL FOR UTHENTING I ANNEN FUNKSJON
 global summer


 while True:
   
  itemName = input("Navn på produkt ")
  if itemName.isalpha():
   break
  else:
   print("Benytt kun bokstaver")
  pass
 while True:
  itemNum = input("Antall ")
 
  if itemNum.isdigit():
   break
  else:
   print("Benytt kun tall")
 pass
 
 itemPrice = input("pris på produkt ")
 
 while True:
  if itemPrice.isdigit():
   break
  else:
   print("Benytt kun tall")
 pass
 myTup = (itemName,itemNum,itemPrice,int(itemNum)*int(itemPrice) )
 myList.append(myTup)
 myList.sort()
 lis=list(myList)



    
    

def utskrift(): #FUNKSJON FOR UTSKRIFT, MED PANDA TABLE)
    global myList
    #print(myList)
    print(myList)
    from tabulate import tabulate
    y=len(myList)
    headers=["NAVN","ANTALL","PRIS","SUM"]
    print(tabulate(myList, headers, tablefmt="grid"))#PRODUSERER TABLE UTSKRIFT
    #print("totalsum for dine varer er = " + """Summer kolonne""" + " .-Nkr") 
    
    ###hvordan kan jeg summere 
    #totalsum   = sum(list(myList[0]))
    #print("Totalsum er:" + totalsum)
    return myList
    pass





while True:

 Innlesning()
 i = input("Trykk Enter for nytt produkt - ELLER skriv inn 0 FOR UTSKRIFT: ")
 if  i =="0":
        break
 print("Your input:", i)
utskrift()
print("AVSLUTTER")


#HENTER UT FUNKSJONENE FOR INNDATA, DERETTER UTSKRIFT"

printscreen

Asked By: Andreas w

||

Source

Answer 1

...
myTup = (itemName,itemNum,itemPrice,int(itemNum)*int(itemPrice) )
myList.append(myTup)
...

i will assume that the number you wanted to add together is int(itemNum)*int(itemPrice), which is every last element of the tuple (myTup[-1])

what you can do is:

...
total = 0
for tuple in myList:
    total += tuple[-1]
...

when the loop is done, the total should be the number you want

Answered By: uwuK

Python – sum all elemeents in list

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