Home/ Questions/Valueerror: No json object could be decoded - simple solution when encountering the error.
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Emily Davies
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Asked: 2022-05-18T16:03:43+00:00 In:

Valueerror: No json object could be decoded – simple solution when encountering the error.

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I have the following python code, but I do not know how to find the correct result. Why has this problem occurred, and how can it be solved? Here is the code that I am running:

with open(filename, "r") as f:
  data = json.loads(f.read())
with open(filename, "r") as f:
  data = json.load(f)

And this is the error text I receive:

Traceback (most recent call last):
  File "myfile.py", line 8, in myfunction
  config = json.loads(f.read())
  File "c:\python27\lib\json\__init__.py", line 326, in loads
  return _default_decoder.decode(s)
  File "c:\python27\lib\json\decoder.py", line 360, in decode
  obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "c:\python27\lib\json\decoder.py", line 378, in raw_decode
  raise ValueError("No JSON object could be decoded")
 ValueError: No JSON object could be decoded
no json object could be decoded
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2 Answers

  1. Best Answer
    Expert

    The cause: In many circumstances when the built-in json module is unclear, I’ve found that the simplejson module produces more descriptive errors. For example, there’s a comma after the last entry in a list:

    json.loads('[1,2,]')
....
ValueError: No JSON object could be decoded

    Also with simplejson:

    simplejson.loads('[1,2,]') 
...
simplejson.decoder.JSONDecodeError: Expecting object: line 1 column 5 (char 5)

    Solution: After I use sudo pip install simplejson to install simplejson.

    And then, the error is figured out.

    import json
import simplejson


def test_parse_json():
f_path = '/home/hello/_data.json'
with open(f_path) as f:
# j_data = json.load(f) # ValueError: No JSON object could be decoded
j_data = simplejson.load(f) # right
lst_img = j_data['images']['image']
print lst_img[0]
    • 0

  2. It won’t be possible to get Python to correct the JSON. To find a linter online, you will need one .

    This will indicate any errors in the JSON that you are trying decode.

    • 13

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