Answers for "python two dimensional list"

python how to change an element in a multi dimensional list

multi_dimension = [[1, 2, 3], [4, 5, 6]]
multi_dimension[1][1] = 7     # Value 5 (element 2) in list 2 is converted to 7
# Can be ablied to any number of dimensions
other_example[[[0, 1], [2, 3]], [[4, 5], [6, 7]]]
other_example[0][1][0] = 8   # Value 2 (Element 2) in list2 of list1 in other_ 
 							 # example is changed to 8

create a 2d array in python

def build_matrix(rows, cols):
    matrix = []

    for r in range(0, rows):
        matrix.append([0 for c in range(0, cols)])

    return matrix

if __name__ == '__main__':
    build_matrix(6, 10)

two dimensional array python

# Creates a list containing 5 lists, each of 8 items, all set to 0
w, h = 8, 5;
Matrix = [[0 for y in range(h)] for x in range(w)] 

Matrix[0][0] = 1
Matrix[0][6] = 3 # error! range... 
Matrix[6][0] = 3 # valid