I'm using the random module for a program and don't want items from the list to repeat, so I'm using shuffle. The problem is when I run it, it returns None instead of the items in the list.
from random import shuffle
list = ["a", "b", "c", "d"]
new_list = []
for l in list:
n = shuffle(list)
new_list.append(n)
print(new_list)
Shuffle is an in-place operation - i.e. it shuffles the original list. You can change your code to this:
from random import shuffle
list = ["a", "b", "c", "d"]
new_list = []
for i in range(0, len(list)):
shuffle(list)
new_list.append(list)
print(new_list)
.shuffle() does the shuffle in place, @Aziz has a good answer. If you want to get return value then use .sample():
from random import sample
Alist = ["a", "b", "c", "d"]
new_list = []
for l in Alist:
n = sample(Alist,k=len(Alist))
new_list.append(n)
print(new_list)
