Написать программу, считывающую из файла матрицу

import numpy
 
 
def matrixer(n: int) -> list:
    mlist = [[0] * n for i in range(n)]
    for i in range(n):
        for j in range(n):
            if i < j:
                mlist[i][j] = 0
            elif i > j:
                mlist[i][j] = 2
            else:
                mlist[i][j] = 1
    for row in mlist:
        print(' '.join([str(elem) for elem in row]))
    det = numpy.array(mlist, int)
    res = round(numpy.linalg.det(det), 10)
    print(res)
    with open('проба' + '.' + 'txt', 'w', encoding='utf-8') as fp:
        print(mlist, file=fp, sep="\n")
    with open('проба' + '.' + 'txt', 'a', encoding='utf-8') as fp:
        print(res, file=fp, sep="\n")
    return mlist
 
 
if __name__ == '__main__':
    n = int(input())
    matrixer(n)

with open("путь тыкать сюда", 'w', encoding='utf-8') as fp:

#coding: utf-8
import numpy
matrix =[]
 
with open('input.txt', 'r', encoding='utf-8') as f:
    for line in f:
        matrix.append([int(x) for x in line.split()])
print(matrix)
x = numpy.linalg.det(matrix)
with open('output.txt', 'w', encoding='utf-8') as s:
    print(x, file=s)
    max_len = max([len(str(e)) for r in matrix for e in r])
    for row in matrix:
        print(*list(map('{{:>{length}}}'.format(length=max_len).format, row)),file=s)