How do I create many matrices inside a loop statement with python?

Question

I want to create for example n matrices like:

m1 = [[0,0],[0,0]]
m2 = [[0,0],[0,0]]
.
. 
mn = [[0,0],[0,0]]

• TigerhawkT3: possible duplicate of How to create nested lists in python?
• omri_saadon: res = [[item for item in range(2)] for item in range(10)]
• TigerhawkT3: That'll create lists of [0, 1], not [0, 0]. It also has the wrong dimensions (10x2 instead of nx2x2).

Answer 1

I think that will work for you

res = [[[0 for item3 in range(2)] for item2 in range(2)] for item1 in range(10)]
print res

Output:

[
 [[0, 0], [0, 0]],
 [[0, 0], [0, 0]],
 [[0, 0], [0, 0]],
 [[0, 0], [0, 0]],
 [[0, 0], [0, 0]],
 [[0, 0], [0, 0]],
 [[0, 0], [0, 0]],
 [[0, 0], [0, 0]],
 [[0, 0], [0, 0]],
 [[0, 0], [0, 0]]
]

Basically 10(your n value) arrays with 2x2 lists of zeros.