Как сохранить обработанный текст в один файл?

# -*- coding: utf-8 -*-
 
openFile = open(r'C:\Documents and Settings\Администратор\Рабочий стол\open-accounts.txt', encoding='utf-8')
saveFile = open(r'C:\Documents and Settings\Администратор\Рабочий стол\output.txt', 'w', encoding='utf-8')
 
linesarray = openFile.readlines()
openFile.close()
seen = []
 
# этот цикл сравнивает строки на совпадение и удаляет повторяющие
for i in range(len(linesarray)):
    if seen.count(linesarray[i]) == 0:
        seen.append(linesarray[i])
        saveFile.write(linesarray[i])
 
saveFile.close()
 
# этот цикл обрезает строки
with open(r'C:\Documents and Settings\Администратор\Рабочий стол\output.txt', encoding='utf-8') as fin, \
     open(r'C:\Documents and Settings\Администратор\Рабочий стол\output-relise.txt', 'w', encoding='utf-8') as fout:
    for line in fin:
        print(line[-39:-3],file=fout )
 
print("Обработка завершена!")
input("Нажмите любую клавишу для выхода...")

import re
 
GUID = re.compile(r"\[\s+(.*?)\s+\]")
 
def main(in_name, out_name):
    """"""
 
    seen = set()
    guids = []
 
    with open(in_name, "rt", encoding="utf-8") as fin, \
            open(out_name, "wt", encoding="utf-8") as fout:
        for line in fin:
            if not line in seen:
                seen.add(line)
                guids.append(GUID.findall(line)[0])
                fout.write(line)
 
        fout.write("\n".join(guids))

guids.append(GUID.findall(line)[0])

guids.append(line[-39:-3])

import re
 
GUID = re.compile(r"\[\s+(.*?)\s+\]")
 
def main(in_name, out_name):
    """"""
 
    seen = set()
 
    with open(in_name, "rt", encoding="utf-8") as fin, \
            open(out_name, "wt", encoding="utf-8") as fout:
        for line in fin:
            if not line in seen:
                seen.add(line)
                print(GUID.findall(line)[0], file=fout)

#!/usr/bin/python3.2
import collections
 
inp = open('input').readlines()
out = open('output', 'w')
 
counter = collections.Counter()
 
for i in iter(inp):
    data = i.split(']')[1].strip()
    counter[data] += 1
    if counter[data] == 1:
        out.write(i)

#!/usr/bin/python3.2
import collections
 
inp = open('input').readlines()
out = open('output', 'w')
 
counter = collections.Counter()
 
for i in iter(inp):
    data = i.split(']')[1].strip()
    counter[data] += 1
    if counter[data] == 1:
        out.write(i.split('[')[-1].split(']')[0].strip() + '\n')

from collections import Counter
from timeit import timeit
 
SET = set(range(100000))
COUNTER = Counter(range(100000))
 
if "__main__" == __name__:
    print(timeit("999 in SET", "from __main__ import SET"))
    print(timeit("COUNTER[999] += 1\nif COUNTER[999] == 1: pass",
            "from __main__ import COUNTER"))

import re, codecs
fIn = codecs.open('in.txt', 'r', 'utf-8')
fOut = codecs.open('out.txt', 'w', 'utf-8')
for line in fIn:
    m = re.findall('\[\s+(.*?)\s+\]', line)
    for i in m:
        fOut.write(i)