Generera slumpad matris

from random import *

def generate_matrix(rader_, kolumner_):
    matrix_ = [[0 for i in range(rader_)] for j in range(kolumner_)]
    for i in range(rader_):
        for j in range(kolumner_):
            matrix_[i][j] = choice(range(1, 10))
    return matrix_