Inplace shuffle function returns none
breamoreboy at gmail.com
breamoreboy at gmail.com
Tue Oct 18 16:54:37 EDT 2016
On Tuesday, October 18, 2016 at 9:25:19 PM UTC+1, Sayth Renshaw wrote:
> So why can't i assign the result slice to a variable b?
>
> It just keeps getting none.
>
> Sayth
You are misunderstanding something that is fundamental in Python, namely that anything that is done inplace *ALWAYS* returns None as a warning that the operation has been done inplace, so you're never going to get anything back. All you need do is change your original code as follows:-
from random import shuffle
a = [1,2,3,4,5]
shuffle(a)
b = a[:3]
print(b)
Kindest regards.
Mark Lawrence.
More information about the Python-list
mailing list