Python exception
Python exception: json.JSONDecodeError
As text you can copy
json.JSONDecodeError - Kind
- Exception
- Where you meet it
- Raised in your own program
What does json.JSONDecodeError mean in Python?
A subclass of ValueError with extra attributes: the message, the document being parsed, and the position, line and column where parsing failed.
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What it means in trading API work
The reply was not JSON. Often the body is empty, or it is an HTML error page from a gateway sent with a status such as 502 or 503, and the program tried to parse it without looking at the status first.
This part is this site's own explanation, written for people learning to call a trading API. It is not part of the source cited above and it describes no particular broker.
What should I do about json.JSONDecodeError?
Check the status code and the Content-Type before parsing, and log the start of the body when parsing fails. Then handle the status you actually received.
This page is an independent explanation in plain words. The definition itself is in the source it was read from, which is the authority if the two ever differ.