Python JSON数据导入

Question

我正在尝试将数据从 json 文件导入到 sqlite 但我遇到了一些错误，我首先认为问题出在路径中，我以多种方式更改了它们但是......没有结果，它给了我这个错误:

Traceback (most recent call last):
  File "C:/Users/Taner/PycharmProjects/untitled/MyProgram.py", line 13, in <module>
    json_object = json.loads(dummy_json)
  File "C:\Users\Taner\AppData\Local\Programs\Python\Python35-32\lib\json\__init__.py", line 312, in loads
    s.__class__.__name__))
TypeError: the JSON object must be str, not 'bytes'

这是我的代码:

import json
import bz2
import sqlite3

fpath = "C:\\Users\\Taner\\Downloads\\RC_2012-12.bz2"
databasepath = "C:\\Users\\Taner\\Desktop\\Seagate\\reddit"

conn = sqlite3.connect(databasepath)
curs = conn.cursor()
with bz2.BZ2File(fpath) as file:
    for line in file:
        dummy_json = line
        json_object = json.loads(dummy_json)
        po = json.loads(line.decode('utf8'))
        curs.execute("INSERT INTO Reddit VALUES (?,?,?)", (po['id'], po['subreddit_id'], po['subreddit'],))
        conn.commit()

Answer 1

正确的循环形式应该是:

with bz2.BZ2File(fpath) as file:
    for line in file:
        po = json.loads(json.loads(line.decode('utf8')))
        curs.execute("INSERT INTO Reddit VALUES (?,?,?)", (po['id'], po['subreddit_id'], po['subreddit'],))
        conn.commit()