Question

我尝试将json转换为csv，但还有额外的字母＆＃34; u＆＃34;已经出现在列表中的每个单词之前，我用pandas来读取这个csv数据，这是我的代码：

import json
import csv
with open("train.json") as file:
    data = json.load(file)
with open("trainc.csv", "w") as file:
    csv_file = csv.writer(file)
    csv_file.writerow(data[0].keys())
    for item in data:
    csv_file.writerow(item.values())
import pandas as pd
train = pd.read_csv("trainc.csv", header=0)

作为json文件的示例，这是第一个：

{
    "id": 10259,
    "cuisine": "greek",
    "ingredients": [
      "romaine lettuce",
      "black olives",
      "grape tomatoes",
      "garlic",
      "pepper",
      "purple onion",
      "seasoning",
      "garbanzo beans",
      "feta cheese crumbles"
    ]
  }

我用这条线打印成分

print train['ingredients'][0]

当我打印相同的记录时，输出就像那样：

[u'romaine lettuce', u'black olives', u'grape tomatoes', u'garlic', u'pepper', u'purple onion', u'seasoning', u'garbanzo beans', u'feta cheese crumbles']

Answer 1

此u不在您的字符串中。它只是说数据的类型是unicode。

for x in train['ingredients'][0]:
     print x

您发现数据中没有额外的u。

Python str vs unicode types
http://www.diveintopython.net/xml_processing/unicode.html

额外＆＃34; u＆＃34;在python中从json转换为csv时

1 个答案: