First of all, the reason for the error is the datetime type field when exporting JSON.
Added in the code:
class dateencoder (JSON. Jsoneencoder):
Default (self, obj):
if isinstance (obj, datetime. Datetime):
return obj.strftime (“% Y -% m -% DT% H:% m:% s”)
else:
return json.jsoneencoder.default (self, obj)
Then add a CLS = dateencoder
in json.dump to solve the problem
As shown in the figure:
no error will be reported
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