ksatish....@gmail.com wrote:
[snip code]
Wasn't there any documentation to go with that script? That's the preferable
method to use software written by someone else ;)
Anyway -- First you have to undo what was probably changed by yourself:
$ diff -u json2csv_orig.py json2csv.py
--- json2csv_orig.py 2017-07-11 15:15:06.527571509 +0200
+++ json2csv.py 2017-07-11 15:14:17.878514787 +0200
@@ -132,14 +132,6 @@
return parser
-json_file = input("Type Json input file name: ")
-
-key_map = input("Type Key value : ")
-
-MultiLineJson2Csv(Json2Csv).init_parser()
-
-Json2Csv.load(json_file)
-
if __name__ == '__main__':
parser = init_parser()
@@ -159,4 +151,4 @@
fileName, fileExtension = os.path.splitext(args.json_file.name)
outfile = fileName + '.csv'
-loader.write_csv(filename=outfile, make_strings=args.strings)
+ loader.write_csv(filename=outfile, make_strings=args.strings)
Then you have to create a file containing the data in json format, e. g.
$ cat data.json
[
["alpha", "beta", {"one": {"two": "gamma"}}],
["zeta", "eta", {"one": {"two": "theta"}}]
]
...and a file describing the conversion, also in json, like
$ cat key_map.json
{
"map": [
["foo", "0"],
["bar", "1"],
["baz", "2.one.two"]
]
}
Now you can run the script, first to look at the command line help
$ python json2csv.py -h
usage: json2csv.py [-h] [-e] [-o OUTPUT_CSV] [--strings] json_file key_map
Converts JSON to CSV
positional arguments:
json_file Path to JSON data file to load
key_map File containing JSON key-mapping file to load
optional arguments:
-h, --help show this help message and exit
-e, --each-line Process each line of JSON file separately
-o OUTPUT_CSV, --output-csv OUTPUT_CSV
Path to csv file to output
--strings Convert lists, sets, and dictionaries fully to
comma-separated strings.
and then to process your data:
$ python json2csv.py data.json key_map.json
INFO:root:[u'alpha', u'beta', {u'one': {u'two': u'gamma'}}]
INFO:root:[u'zeta', u'eta', {u'one': {u'two': u'theta'}}]
Finally, let's have a look at the resulting csv file:
$ cat data.csv
foo,bar,baz
alpha,beta,gamma
zeta,eta,theta
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