Error converting prediction list to JSON array

[vpinnaka]

Good work Amir, I am trying to run your code but got the following error, I am using python3 and installed all the requirements. Intial Analysis: The error is because prediction list contains int64 type values, but jsonifying this list is throwing this error return jsonify({'prediction': prediction}) Suggested fix prediction_str = [str(i) for i in prediction] return jsonify({'prediction': prediction_str}) Converting the int64 list to string array solled the error. Error: { "error": "Object of type 'int64' is not JSON serializable", "trace": "Traceback (most recent call last):\n File "main.py", line 42, in predict\n return jsonify({'prediction': prediction})\n File "C:\Users\vinay\Anaconda3\envs\flask-ml\lib\site-packages\flask\json.py", line 263, in jsonify\n (dumps(data, indent=indent, separators=separators), '\n'),\n File "C:\Users\vinay\Anaconda3\envs\flask-ml\lib\site-packages\flask\json.py", line 123, in dumps\n rv = _json.dumps(obj, **kwargs)\n File "C:\Users\vinay\Anaconda3\envs\flask-ml\lib\json\init.py", line 238, in dumps\n **kw).encode(obj)\n File "C:\Users\vinay\Anaconda3\envs\flask-ml\lib\json\encoder.py", line 201, in encode\n chunks = list(chunks)\n File "C:\Users\vinay\Anaconda3\envs\flask-ml\lib\json\encoder.py", line 430, in _iterencode\n yield from _iterencode_dict(o, _current_indent_level)\n File "C:\Users\vinay\Anaconda3\envs\flask-ml\lib\json\encoder.py", line 404, in _iterencode_dict\n yield from chunks\n File "C:\Users\vinay\Anaconda3\envs\flask-ml\lib\json\encoder.py", line 325, in _iterencode_list\n yield from chunks\n File "C:\Users\vinay\Anaconda3\envs\flask-ml\lib\json\encoder.py", line 437, in _iterencode\n o = _default(o)\n File "C:\Users\vinay\Anaconda3\envs\flask-ml\lib\site-packages\flask\json.py", line 80, in default\n return _json.JSONEncoder.default(self, o)\n File "C:\Users\vinay\Anaconda3\envs\flask-ml\lib\json\encoder.py", line 180, in default\n o.class.name)\nTypeError: Object of type 'int64' is not JSON serializable\n" }

[sumannitjsr06]

Thanks @vpinnaka , your fix worked for me.

[fsroque]

Replacing line 38 for this works fine: prediction = clf.predict(query).tolist()

this uses the built-in numpy method instead.