Convert JSON to CSV using Python (Idle)

Question

I have a JSON file of Latitude/Longitude that I want to covert to a CSV file. I want to do this using Python. I have read/tried all other stackoverflow and google search results

Answer 1

This will help you iterate each item and write it to your csv file:

import json, csv

x = """[
    {"longitude":"-73.689070","latitide":"40.718000"},
    {"longitude":"-73.688400","latitide":"40.715990"},
    {"longitude":"-73.688340","latitide":"40.715790"},
    {"longitude":"-73.688370","latitide":"40.715500"},
    {"longitude":"-73.688490","latitide":"40.715030"},
    {"longitude":"-73.688810","latitide":"40.714370"},
    {"longitude":"-73.688980","latitide":"40.714080"},
    {"longitude":"-73.689350","latitide":"40.713390"},
    {"longitude":"-73.689530","latitide":"40.712800"},
    {"longitude":"-73.689740","latitide":"40.712050"},
    {"longitude":"-73.689820","latitide":"40.711810"},
    {"longitude":"-73.689930","latitide":"40.711380"},
    {"longitude":"-73.690110","latitide":"40.710710"}
]"""

jsoned = json.loads(x)

with open("test.csv", "wb+") as csv_file:
    csv_writer = csv.writer(csv_file)
    for i in jsoned:
        csv_writer.writerow([i[u'longitude'],
                             i[u'latitide']])

Note, you're misspelling latitude (latitide) in your original post.

Answer 2

Loop over the list one by one, and write out the field names explicitly is perhaps the simplest for this case.

for row in x:
    f.writerow( [row['longitude'], row['latitude']] )

Answer 3

Based on some of the answer responses, this works like a charm!:

import json, csv

    x="""[
        {"longitude":"-73.689070","latitude":"40.718000"},
        {"longitude":"-73.688400","latitude":"40.715990"},
        {"longitude":"-73.688340","latitude":"40.715790"},
        {"longitude":"-73.688370","latitude":"40.715500"},
        {"longitude":"-73.688490","latitude":"40.715030"},
        {"longitude":"-73.688810","latitude":"40.714370"},
        {"longitude":"-73.688980","latitude":"40.714080"},
        {"longitude":"-73.689350","latitude":"40.713390"},
        {"longitude":"-73.689530","latitude":"40.712800"},
        {"longitude":"-73.689740","latitude":"40.712050"},
        {"longitude":"-73.689820","latitude":"40.711810"},
        {"longitude":"-73.689930","latitude":"40.711380"},
        {"longitude":"-73.690110","latitude":"40.710710"}
    ]"""

    x = json.loads(x)

    f = csv.writer(open("test.csv", "wb+"))

    f.writerow(["longitude", "latitude"])

    for row in x:
        f.writerow( [row['longitude'], row['latitude']] )

Answer 4

I would use a csv.DictWriter, since you're dealing with dicts, which is exactly the case DictWriter is there for.

rows = json.loads(x)
with open('test.csv', 'wb+') as f:
    dict_writer = csv.DictWriter(f, fieldnames=['longitude', 'latitude'])
    dict_writer.writeheader()
    dict_writer.writerows(rows)

Edit:
Since the .writeheader() method was only added in 2.7, you can use something like this on older versions:

rows = json.loads(x)
fieldnames = ['longitude', 'latitude']
with open('test.csv', 'wb+') as f:
    dict_writer = csv.DictWriter(f, fieldnames=fieldnames)
    dict_writer.writerow(dict(zip(fieldnames, fieldnames)))
    dict_writer.writerows(rows)