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 #load csv file data using csv library's dictionary reader With open(csvFilePath, encoding='utf-8') as csvf: 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):.You may write the JSON String to a JSON file.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. ![]() The header row contains the keys from the first row of the JSON data.To convert CSV to JSON in Python, follow these steps:
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