[Python] Output pandas.DataFrame as json
Summary
Data analysis is performed using python. The analysis itself is performed using pandas, and the final results are stored in pandas.DataFrame format.
I want to output this result to a file in json format in order to use it in other applications.
How to do it
1 Convert pandas.DataFrame to dictionary
data = df.to_dict(orient='records')2 Save to file
with open(file_path, 'w', encoding='utf-8') as file:
json.dump(data, file, indent=4, ensure_ascii=False)Specify the path of the file you want to save in file_path.
If it contains Japanese characters, set ensure_ascii = False to avoid garbled characters
Notes
pandas.DataFrame also has a method called to_json(), but don't use this.
to_json() is a method that converts to a json-like format string.
If you read the output of this, it will be read as one long string.
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