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[英]json.decoder.JSONDecodeError: Expecting value: line 2 column 1 (char 1) error
[英]What is json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
我要求人脸比较API。 您在哪里发送2张图片,如果它们不是同一个人,它将返回此链接: Face ++ API
他们在文档中提到您可以这样请求:
curl -X POST "https://api-us.faceplusplus.com/facepp/v3/compare" \
-F "api_key=<api_key>" \
-F "api_secret=<api_secret>" \
-F "face_token1=c2fc0ad7c8da3af5a34b9c70ff764da0" \
-F "face_token2=ad248a809408b6320485ab4de13fe6a9"
这是我的代码:
result = json.loads(os.popen('curl -X POST "https://api-us.faceplusplus.com/facepp/v3/compare/api_key=myKey/api_secret=mySecret/https://us-mc-prod-asset.oss-us-west-1.aliyuncs.com/mc-official/scripts/demoScript/images/demo-pic33.jpg/https://us-mc-prod-asset.oss-us-west-1.aliyuncs.com/mc-official/scripts/demoScript/images/demo-pic39.jpg"').read())
但是当我运行它时,我得到的是:
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
Traceback (most recent call last):
File "/Users/max/Desktop/Programming/Face/venv/face.py", line 15, in <module>
result = json.loads(os.popen('curl -X POST "https://api-us.faceplusplus.com/facepp/v3/compare/api_key=myKey/api_secret=mySecret/https://us-mc-prod-asset.oss-us-west-1.aliyuncs.com/mc-official/scripts/demoScript/images/demo-pic33.jpg/https://us-mc-prod-asset.oss-us-west-1.aliyuncs.com/mc-official/scripts/demoScript/images/demo-pic39.jpg"').read())
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/json/__init__.py", line 354, in loads
return _default_decoder.decode(s)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/json/decoder.py", line 339, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/json/decoder.py", line 357, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
我尝试使用请求以另一种方式做:
result = requests.get( "https://api-us.faceplusplus.com/facepp/v3/compare/api_key=myKey/api_secret=mySecret/https://us-mc-prod-asset.oss-us-west-1.aliyuncs.com/mc-official/scripts/demoScript/images/demo-pic33.jpg/https://us-mc-prod-asset.oss-us-west-1.aliyuncs.com/mc-official/scripts/demoScript/images/demo-pic39.jpg")
但是,我得到这个:
<Response [404]>
curl命令格式错误,因此,您收到错误Could not resolve host: api_key=myKey
而不是有效的JSON返回数据。
但是,(不要偏离您的问题),我可能建议您使用类似requests
(如果必须使用标准python库,则使用urllib2
)来发送HTTP请求。 以您的方式调用curl会产生意想不到的结果,例如您现在正在处理的内容。
此外, requests
实际上具有用于响应对象的非常方便的json()
方法。 这将使您的代码更整洁,更易于排除故障。 这是文档中的示例:
http://docs.python-requests.org/en/master/user/quickstart/#json-response-content
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