JSONDecodeError:期望值:第1行第1列(字符0)
JSONDecodeError:期望值:第1行第1列(字符0)
提问于 2013-05-16 03:22:45
当我尝试解码JSON时，我得到了错误Expecting value: line 1 column 1 (char 0)。
我用于API调用的URL在浏览器中运行良好，但在通过curl请求执行时会出现此错误。下面是我用于curl请求的代码。
错误发生在return simplejson.loads(response_json)
response_json = self.web_fetch(url)
response_json = response_json.decode('utf-8')
return json.loads(response_json)
def web_fetch(self, url):
buffer = StringIO()
curl = pycurl.Curl()
curl.setopt(curl.URL, url)
curl.setopt(curl.TIMEOUT, self.timeout)
curl.setopt(curl.WRITEFUNCTION, buffer.write)
curl.perform()
curl.close()
response = buffer.getvalue().strip()
return response回溯：
File "/Users/nab/Desktop/myenv2/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
111. response = callback(request, *callback_args, **callback_kwargs)
File "/Users/nab/Desktop/pricestore/pricemodels/views.py" in view_category
620. apicall=api.API().search_parts(category_id= str(categoryofpart.api_id), manufacturer = manufacturer, filter = filters, start=(catpage-1)*20, limit=20, sort_by='[["mpn","asc"]]')
File "/Users/nab/Desktop/pricestore/pricemodels/api.py" in search_parts
176. return simplejson.loads(response_json)
File "/Users/nab/Desktop/myenv2/lib/python2.7/site-packages/simplejson/__init__.py" in loads
455. return _default_decoder.decode(s)
File "/Users/nab/Desktop/myenv2/lib/python2.7/site-packages/simplejson/decoder.py" in decode
374. obj, end = self.raw_decode(s)
File "/Users/nab/Desktop/myenv2/lib/python2.7/site-packages/simplejson/decoder.py" in raw_decode
393. return self.scan_once(s, idx=_w(s, idx).end())
Exception Type: JSONDecodeError at /pricemodels/2/dir/
Exception Value: Expecting value: line 1 column 1 (char 0)回答 17
Stack Overflow用户
发布于 2019-03-06 14:21:59
请检查文件的编码格式，并在读取文件时使用相应的编码格式。它会解决你的问题。
with open("AB.json", encoding='utf-8', errors='ignore') as json_data:
data = json.load(json_data, strict=False)Stack Overflow用户
发布于 2020-07-09 21:23:27
我在尝试读取json文件时也遇到了同样的问题。
json.loads("file.json")我解决了这个问题
with open("file.json", "r") as read_file:
data = json.load(read_file)也许这能对你的情况有所帮助
Stack Overflow用户
发布于 2019-05-07 04:58:48
很多时候，这是因为您试图解析的字符串是空的：
>>> import json
>>> x = json.loads("")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/json/__init__.py", line 348, in loads
return _default_decoder.decode(s)
File "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/json/decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/json/decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)您可以通过事先检查json_string是否为空来进行补救：
import json
if json_string:
x = json.loads(json_string)
else:
# Your code/logic here
x = {}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/16573332
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