Convert JSON to CSV in Python
The full form of JSON is JavaScript Object Notation. It means that a script (executable) file which is made of text in a programming language, is used to store and transfer the data. Python supports JSON through a built-in package called JSON. To use this feature, we import the JSON package in Python script. The text in JSON is done through quoted-string which contains the value in key-value mapping within { }. It is similar to the dictionary in Python.
CSV (Comma Separated Values) is a simple file format used to store tabular data, such as a spreadsheet or database. CSV file stores tabular data (numbers and text) in plain text. Each line of the file is a data record. Each record consists of one or more fields, separated by commas. The use of the comma as a field separator is the source of the name for this file format.
Converting JSON to CSV
For simple JSON data consisting of key and value pairs, keys will be headers for the CSV file and values the descriptive data.
Example: Suppose the JSON file looks like this:
We want to convert the above JSON to CSV file with key as headers.
- Python3
# Python program to convert# JSON file to CSVimport jsonimport csv# Opening JSON file and loading the data# into the variable datawith open('data.json') as json_file: data = json.load(json_file)employee_data = data['emp_details']# now we will open a file for writingdata_file = open('data_file.csv', 'w')# create the csv writer objectcsv_writer = csv.writer(data_file)# Counter variable used for writing# headers to the CSV filecount = 0for emp in employee_data: if count == 0: # Writing headers of CSV file header = emp.keys() csv_writer.writerow(header) count += 1 # Writing data of CSV file csv_writer.writerow(emp.values())data_file.close() |
Output:
And, if you are working on JSON data like the following:
[
{‘Age’: 18.0, ‘Salary’: 20000.0, ‘Gender’: ‘Male’, ‘Country’: ‘Germany’, ‘Purchased’: ‘N’}
{‘Age’: 19.0, ‘Salary’: 22000.0, ‘Gender’: ‘Female’, ‘Country’: ‘France’, ‘Purchased’: ‘N’}
{‘Age’: 20.0, ‘Salary’: 24000.0, ‘Gender’: ‘Female’, ‘Country’: ‘England’, ‘Purchased’: ‘N’}
]
The below code will work perfectly for you (please format the code before running)
- Python3
import jsonimport csvwith open('G:\Akhil\jsonoutput.json') as json_file: jsondata = json.load(json_file)data_file = open('G:\Akhil\jsonoutput.csv', 'w', newline='')csv_writer = csv.writer(data_file)count = 0for data in jsondata: if count == 0: header = data.keys() csv_writer.writerow(header) count += 1 csv_writer.writerow(data.values())data_file.close() |
Last Updated on October 27, 2021 by admin