Преобразование текстового файла в JSON

json = {
        'isbn10' : [
            "9851312827",
            "9851356824"
        ],
        'autor': "А. Тарас, А. Владзимирский",
        'pub_year': '2006',
        'page': '256',
        'isbn13': [
            "985-13-1282-7",
            "985-13-5682-4"
        ],
        }

# coding: utf-8
import os
 
path = os.getcwd()
 
data = open(path+'\\injson.txt').read().decode('utf-8').splitlines()
 
dictj = {}
a = 0
for i in data:
    isbn10, title, autor, pub_year, page, isbn13, musor = i.split(';')
    dictj[a] = {'isbn10':isbn10.split(','),
                'autor':autor,
                'pub_year':pub_year,
                'page':page,
                'isbn13':isbn13.split(',')}
    a+=1
 
for i in dictj:
    print dictj[i], '\n'

import csv
import json
 
def convert(fname_in, fname_out):
    fieldnames = ("isbn10", "title", "autor", "pub_year", "page", "isbn13", "tmp")
 
    with open(fname_in, "rt", encoding="utf-8") as fin, \
            open(fname_out, "wt", encoding="utf-8") as fout:
 
        fout.write("[\n")
        for row in csv.DictReader(fin, fieldnames=fieldnames, delimiter=";"):
            row.pop("title")
            row.pop("tmp")
 
            row["isbn10"] = row["isbn10"].split(",")
            row["isbn13"] = row["isbn13"].split(",")
            fout.write(json.dumps(row, ensure_ascii=False, indent=4) + "\n")
        fout.write("]")