python questions

Question

I have two lists:
a = [1,2,3,4,5]
b = []
i want b to be:
b = [[1],[2],[3],[4],[5]]

Answer 1

You can use for loop to change them :

for i in a :
a[i] = list(a[i])

This is better because you may have an unknown list.

Answer 2

a = [1, 2, 3, 4, 5]
b = []
for i in a:
b.extend([[i]])
print(b)

Hope, you get some help.Good luck.