Python: initialize multi-dimensional list

Question

I want to initialize a multidimensional list. Basically, I want a 10x10 grid - a list of 10 lists each containing 10 items.

Each list value should be initialized to

Answer 1

Two common and short way to do this:

First:

[[0] * n] * m

Second:

[[0 for column in range(n)] for row in range(m)]