Trying to convert each tuple inside a list to a list in using forloop in python

Question

I'm trying to convert each tuple inside users to a list. I tried the following code to achieve that:

usernames = ["Dude","Bro","Mister",]
passwords = ("bloke","black","nobbe",)
users = list(zip(usernames,passwords))


for i in users:
    i = list(i)

print(users)

My expected output for print(users) was: [['Dude', 'bloke'], ['Bro', 'black'], ['Mister', 'nobbe']]

But print(user) gave me the following, leaving the tuples unchanged: [('Dude', 'bloke'), ('Bro', 'black'), ('Mister', 'nobbe')]

How can convert each tuple inside users to a list?

So, nowhere do you modify your list in your code. This is an important point to understand - why did you *expect* the list to change here at all? — juanpa.arrivillaga, Feb 23 '23 at 17:40

Pawel Kam · Answer 1 · 2023-02-23T17:49:14.990

0

You can do something as simple as

users = [list(u) for u in users]

or like this, if you don't want a list comprehension.

for index, u in enumerate(users):
    users[index] = list(u)

Please read this article to have a better understanding about lists in Python.

edited Feb 23 '23 at 17:49

answered Feb 23 '23 at 17:38

Pawel Kam

1,684
3
14
30

How would I do it without list comprehension? – Wizards Fart Feb 23 '23 at 17:39
It's very important to understand, two different things are happening here. – juanpa.arrivillaga Feb 23 '23 at 17:42

score 0 · Answer 2 · answered Feb 23 '23 at 17:40

0

use for loop as below:

for i in range(len(users)):
    users[i] = list(users[i])

answered Feb 23 '23 at 17:40

Ugur Yigit

155
7

Trying to convert each tuple inside a list to a list in using forloop in python

2 Answers2