Web Reference: Mar 30, 2019 · That is code from a Jupyter notebook, which is stored in JSON format and cannot be run directly by Python. To fix it, remove everything that doesn't correspond to the 'source' attribute. Apr 8, 2024 · The Python "NameError: name 'json' is not defined" occurs when we use the json module without importing it first. To solve the error, import the json module before using it - import json. May 8, 2023 · To fix the nameerror name null is not defined error message, you have to check your code for any instances where you are using the keyword “null” and simply replace it with “none.” This article already provides solutions for this error to help you fix the Python error message.
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