无法使用python读取json文件.收到类型错误:json对象为"TextIOWrapper" [英] can't read json file with python. getting type error: json object is 'TextIOWrapper'
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问题描述
我正在尝试从json文件读取.
I'm trying to read from a json file.
这是我创建文件的方式:
This is how I created the file:
import requests
import json
import time
from pprint import pprint
BASE_URL = "https://www.wikiart.org/en/api/2/UpdatedArtists"
artist_json_data = requests.get(BASE_URL).json()
with open('artistdata.json', 'w') as outfile:
while artist_json_data['hasMore']:
print(artist_json_data['paginationToken'])
url = BASE_URL + "?paginationToken=" +artist_json_data['paginationToken']
artist_json_data = requests.get(url).json()
json.dump(artist_json_data, outfile, indent=4)
time.sleep(1)
这是我输出的开始:
{
"data": [
{
"id": "57726da5edc2cb3880b4ca54",
"artistName": "Paul Feeley",
"url": "paul-feeley",
"lastNameFirst": "Feeley Paul",
"birthDay": "/Date(-1893456000000)/",
"deathDay": "/Date(-126230400000)/",
当我尝试使用以下代码读取同一文件时:
When I try to read the same file with following code:
from pprint import pprint
with open('artistdata.json', 'r', encoding='utf-8') as data_file:
data = json.loads(data_file)
pprint(data)
我得到了错误
TypeError: the JSON object must be str, bytes or bytearray, not 'TextIOWrapper'
我不理解,因为我可以像往常一样以崇高的方式打开文件.我该如何处理?
which I don't understand, because I can open the file in sublime as usual. How can I handle this?
问题是我混合了转储和装载.现在我正在使用转储和加载
the issue was that I mixed dumps and load. Now I am using dump and load
class Wikiart:
'''Class to access wikiart.org Data'''
def __init__(self):
self.BASE_URL = "https://www.wikiart.org/en/"
self.BASE_URL_API = self.BASE_URL + "api/2/"
self.BASE_URL_MOVEMENT = self.BASE_URL + 'artists-by-art-movement/'
self.ARTIST_DATA_URL = self.BASE_URL_API + "UpdatedArtists"
def write_artist_data_into_json_file(self):
artists = requests.get(ARTIST_DATA_URL).json()
all_artists = artists['data']
with open('artistdata.json', 'w') as outfile:
while artists['hasMore']:
print('fetching next: pagination token',artists['paginationToken'])
url = BASE_URL + "?paginationToken=" + artists['paginationToken']
artists_next_page = requests.get(url).json()
next_artists = artists_next_page['data']
time.sleep(0.25)
all_artists = all_artists + next_artists
artists = artists_next_page
json.dump(all_artists, outfile, indent=4)
from pprint import pprint
with open('artistdata.json', 'r', encoding='utf-8') as data_file:
data = json.load(data_file)
pprint(data)
推荐答案
json.load()
用于加载文件. json.loads()
使用字符串.
json.load()
is for loading a file. json.loads()
works with strings.
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