Решение задачи на сортировку данных из файла

open_file = open('input.txt', 'r', encoding='utf8')
save_file = open('output.txt', 'w', encoding='utf8')
lines = open_file.readlines()
 ........
open_file.close()
save_file.close()

import os
 
open_data = open((os.path.dirname(os.path.abspath(__file__)) + '/test.txt'), "r")
data = open_data.read().split()
n = 0
result = {}
for i in data:
    if n % 4 == 0:
        result[data[n]] = (data[n+1], data[n+3])
    n += 1
for j in sorted(result.keys()):
    print ' '.join(map(str, (j, ' '.join(map(str, result[j])))))

with open('input.txt') as f_in, open('output.txt', 'w') as f_out:
    f_out.write('\n'.join(sorted(f_in.read().splitlines(), key=lambda x: x[0])))

open_data = open('input.txt', 'r', encoding='utf8')
outFile = open('output.txt', 'w', encoding='utf8')
data = open_data.read().split()
n = 0
result = {}
for i in data:
    if n % 4 == 0:
        result[data[n]] = (data[n + 1], data[n + 3])
    n += 1
for j in sorted(result.keys()):
    print(' '.join(map(str, (j, ' '.join(map(str, result[j]))))), file=outFile)

with open('input.txt') as f_in,open('output.txt', 'w') as f_out:
    for i in list(map(str.split, sorted(f_in.readlines()))):
        f_out.write('{} {} {}\n'.format(i[0],i[1],i[3]))

inFile = open('input.txt', 'r', encoding='utf-8')
matrix = []
for line in inFile:
    line = line.split()
    line.pop(2)
    matrix.append(line)
inFile.close()
matrix.sort()
for i in matrix:
    for j in i:
        print(j, end=' ')
    print()