Convert string to int

[Frankduc]

Hello,

Trying to sum string numbers to int, but there is a ; between them.

tab = input("Éntrez les nombres entiers séparés par des (;) : ")

list_nb= [tab]
list_nb = [item.replace(";"," ") for item in list_nb]

nbs = list(map(int, list_nb))

somme = 0
for nb in nbs:
    print((somme + nb)/len(nbs))
    

Error:
Éntrez les nombres entiers séparés par des (;) : 4;5;7;
Traceback (most recent call last):
  File "<string>", line 10, in <module>
ValueError: invalid literal for int() with base 10: '4 5 7 '
> 

Why i get this error. Numbers need to be input with ";"

Thank you

[menator01]

tab = input('Enter numbers seperated with (;) : ') .split(';')
print(tab)

tab = list(map(int, tab))

print(tab)

somme = 0

for number in tab:
    print((somme + number)/len(tab))

Output:
Enter numbers seperated with (;) : 5;9;6;7  
['5', '9', '6', '7']                        
[5, 9, 6, 7]                                
1.25                                        
2.25                                        
1.5                                         
1.75                                                                             

[Frankduc]

only thing 5+6+9+7 = 6.75 not 1.75

[menator01]

use sum(tab) instead of len(tab)

Output:
Enter numbers seperated with (;) : 5;6;9;7
['5', '6', '9', '7']
[5, 6, 9, 7]
0.18518518518518517
0.2222222222222222
0.3333333333333333
0.25925925925925924
6.75

[Yoriz]

user_input = input("Éntrez les nombres entiers séparés par des (;) : ")
numbers = [int(item) for item in user_input.split(";")]
print(sum(numbers) / len(numbers))

[Frankduc]

Cant use sum in this assignment and its returning error anyway:

Error:
Éntrez les nombres entiers séparés par des (;) : 4;5;5;
Traceback (most recent call last):
  File "<string>", line 6, in <module>
  File "<string>", line 6, in <listcomp>
ValueError: invalid literal for int() with base 10: ''
>

[Yoriz]

The above error is nothing to do with sum you are trying to turn an empty string into an int
You have a ; at the end of the input string so when the split happens you end up with an empty string as the last list item.

[Frankduc]

I got it now. Stupid misunderstanding

Thanks guys

[menator01]

tab = '5;6;9;7'.split(';')
tab = list(map(int, tab))

somme = 0
total = 0

for number in tab:
    total += number
print(f'Sum of tab list is: {total}')

for number in tab:
    print((somme + number)/total)

Output:
Sum of tab list is: 27
0.18518518518518517
0.2222222222222222
0.3333333333333333
0.25925925925925924