I'm new to Python. I have created two nested lists with the following code:
m = [[0,0,0],[0,0,0],[0,0,0]]
n = [[0]*3]*3
If I'm not mistaken, these are two different ways to create the same list, so m and n should be identical. But when I try to modify one element, say:
m[1][0] = 4
n[1][0] = 4
What I'm getting is:
m = [[0, 0, 0], [4, 0, 0], [0, 0, 0]]
n = [[4, 0, 0], [4, 0, 0], [4, 0, 0]]
In m I just modify the m[1][0] element, as I expected. But in n the first element of all the lists are modified.
Why am I getting different results? Are m and n really identical?
And why the n list is behaving like this?
