Question

{"a":"1","b":"1","c":"1"}
{"a":"2","b":"2","c":"2"}
{"a":"3","b":"3","c":"3"}
{"a":"4","b":"4","c":"4"}

我尝试了以下代码，但它给出了错误： -

from nltk.twitter import Twitter
from nltk.twitter.util import json2csv

with open('C:/Users/Archit/Desktop/raw_tweets.json', 'r') as infile:
# Variable for building our JSON block
json_block = []

for line in infile:

    # Add the line to our JSON block
    json_block.append(line)

    # Check whether we closed our JSON block
    if line.startswith('{'):

        # Do something with the JSON dictionary
        json2csv(json_block, 'tweets.csv', ['id','text','created_at','in_reply_to_user_id','in_reply_to_screen_name','in_reply_to_status_id','user.id','user.screen_name','user.name','user.location','user.friends_count','user.followers_count','source'])

        # Start a new block
        json_block = []

错误：

文件“C：\ Python34 \ lib \ json \ decoder.py”，第361行，raw_decode 从None中引发ValueError（errmsg（“Expecting value”，s，err.value）） ValueError：期望值：第1行第1列（char 0）

Answer 1

import csv, json

data = []

with open('C:\Users\Shahriar\Desktop\T.txt') as data_file:    
    for line in data_file:
        data.append(json.loads(line))


keys = data[0].keys()

with open('data.csv', 'wb') as csvF:
    csvWriter = csv.DictWriter(csvF, fieldnames=keys)
    csvWriter.writeheader()
    for d in data:
        csvWriter.writerow(d)

输出：

a,c,b
1,1,1
2,2,2
3,3,3
4,4,4

Answer 2

这太迟了但我今天偶然发现了一些错误。我想你实际上必须从nltk.twitter.common而不是util导入。希望这有助于其他偶然发现此线程的人

Answer 3

# Read json 
filename = 'C:/Users/Archit/Desktop/raw_tweets.json'
lines = [line.replace("{", "").replace("}", "").replace(":", ",") for line in open(filename)]

# Write csv
with open('out.csv', 'w') as csv_file:
   for line in lines:
      csv_file.write("%s\n" % line)

使用python将以下json转换为csv

3 个答案: