Why isn't this for loop in python setting all elements to 0-CodePudding

I ran the following code in Python:

x = [1, 2, 3, 4, 5, 6]

for a in x:
    x[a] = 0

I was expecting it to set every element in the list to 0 but the output I got when I printed the list was:

>>> [0, 0, 3, 0, 5, 0]

Why is this?

CodePudding user response：

The problem is the loop you are using, you need to use for I in range (length of the loop): this outputs [0,0,0,0,0,0].

x = [1, 2, 3, 4, 5, 6]

for i in range(len(x)):
    x[i] = 0

print(x)