Output: data.json Conversion 100.000 rows completed successfully in 0. Print(f'Conversion 100.000 rows completed successfully in seconds') JsonString = json.dumps(jsonArray, indent=4) With open(jsonFilePath, 'w', encoding='utf-8') as jsonf: #convert python jsonArray to JSON String and write to file How can I convert JSON to CSV Open a file for writing Create the csv writer object Make sure to close the file in order to save the contents Subscribe to.

#load csv file data using csv library's dictionary reader As the JSON data is nested, we need to only select the dictionary keys that we. With open(csvFilePath, encoding='utf-8') as csvf: Method: Create a python file named convertJSONtoCSV.py and import the modules pandas, csv and json. For the test I made 100.000 lines in a csv file with copy/paste, and the whole conversion takes about half a second with Apple's M1 Chip while the presented example took only 0.0005 seconds.ĭef csv_to_json(csvFilePath, jsonFilePath):.In other words, converting a JSON file to CSV is based on the complexity of the JSON file. However, if the JSON file gets complicated, you will need to update the Python script to handle the value from JSON. You may write the JSON String to a JSON file. You can easily convert a simple JSON file like the example above with this script.Convert the Python List to JSON String using json.dumps().Add the dictionary to the Python List created in step 1.

Read the lines of CSV file using csv.DictReader() function. Step 1: Install pandas You could technically use the standard json and csv modules from Python to read the JSON file and write a CSV file, but depending on how your JSON file is structured, it can get complicated, and pandas has some great functions to handle these cases, without mentioning it’s really fast, so that’s what we will use.

I then get the error: `sequence expected`įirst, your JSON has nested objects, so it normally cannot be directly converted to CSV.To convert CSV to JSON in Python, follow these steps:

I am using Django and the error I received is: `file' object has no attribute 'writerow'` I have a JSON file I want to convert to a CSV file.

Converting json to csv python