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How to loop through json file


By : Matt
Date : August 01 2020, 01:00 PM
I wish this helpful for you The json file is only iterable from the annotations key contained in context. If you want to print the ID and class from annotations you will need to loop over the annotations list and get the the value where the keys equals 'ID' and 'class'.
code :
with open(root+'/'+filename) as json_file:
    bin3 = json.load(json_file)

for annotation in bin3['content']['annotations']:
    id_value = annotation.get('ID',None)
    class_value = annotation.get('class',None)
    print(id_value, class_value, sep=' ')


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Python append json to json file in a while loop


By : user3775411
Date : March 29 2020, 07:55 AM
With these it helps First, you need to open file in 'a' mode, otherwise subsequence write will overwrite everything
code :
import requests
import json

url = 'https://api.github.com/users'
token = "my_token"
headers = {'Authorization': 'token %s' % token}

outfile = open('users.json', 'a')

while True:
    r = requests.get(url, headers=headers)
    users = r.json()
    json.dump(users, outfile)
    url = r.links['next'].get('url')
    # I don't know what Github return in case there is no more users, so you need to double check by yourself
    if url == '':
        break

outfile.close()

Loop through a JSON file, add element then save to new file


By : Bruce Calder
Date : March 29 2020, 07:55 AM
help you fix your problem I have a JSON file consisting of elements like so : , you can do like this
code :
data=[{
	"Name": "Jeff",
	"Age": 35
},
{
	"Name": "cliff",
	"Age": 56
}];
for(var index in data){
	var obj=data[index];
	switch('USA'){
		case'USA': 
			obj['Country']='USA';
			break;
		case'UK': 
			obj['Country']='UK';
			break;
	}
}
document.write(JSON.stringify(data));

Copy json object with NodeJS loop into JSON file


By : Jaineesh
Date : March 29 2020, 07:55 AM
Hope this helps Good day, , Edit: Convert id to string.
Try this
code :
var fs = require('fs');

var jsonObj = '{ "id":"1","firstname": "Sven","secondname": "Petersen","age":"18" }'

var data = JSON.parse(jsonObj)
var newDataArray = []

function ObjectCreate (id, firstname, secondname, age) {
  this.id = id.toString();
  this.firstname = firstname;
  this.secondname = secondname;
  this.age = age;
}

for (var i = 1; i < 100; i++) {
  var obj = new ObjectCreate (i, data.firstname, data.secondname, data.age);
  newDataArray.push(obj);
}

var writeObject = JSON.stringify(newDataArray)

fs.writeFile('data.json', writeObject, function(err) {
  if(err) throw err;
  console.log('done');
});

curl json object as POST data from json array file using jq in a loop


By : VikramS
Date : March 29 2020, 07:55 AM
To fix this issue Use jq -c, to emit each result on a separate line. Don't use -r when your intended output is JSON, not a raw string.
I've also added some quotes below, which were missing from your code:
code :
# for readability, factored out
args=( -d @- -H "Content-Type: application/json"  )

while IFS= read -r value; do
  echo "Read  $value" >&2
  curl "${args[@]}" https://example.com/api/foo <<<"$value"
done < <(jq -c '.[]' <"$1")

Saving json file by dumping dictionary in a for loop, leading to malformed json


By : Charaf Zguiouar
Date : March 29 2020, 07:55 AM
I wish did fix the issue. JSON may only have one root element. This root element can be [], {} or most other datatypes.
In your file, however, you get multiple root elements:
code :
{...}{...}
[{...},{...}]
import json

inputs = [(["scientific name", "common names", "colors"],
           ["somename1", ["name11", "name12"], ["color11", "color12"]]),
          (["scientific name", "common names", "colors"],
           ["somename2", ["name21", "name22"], ["color21", "color22"]])]

for keys, values in inputs:
    d = dict(zip(keys, values))
    with open("file.json", 'a') as j:
        json.dump(d, j)

with open("file.json", 'r') as j:
    print(json.load(j))
json.decoder.JSONDecodeError: Extra data: line 1 column 105 (char 104)
import json

inputs = [(["scientific name", "common names", "colors"],
           ["somename1", ["name11", "name12"], ["color11", "color12"]]),
          (["scientific name", "common names", "colors"],
           ["somename2", ["name21", "name22"], ["color21", "color22"]])]

jsonData = list()
for keys, values in inputs:
    d = dict(zip(keys, values))
    jsonData.append(d)

with open("file.json", 'w') as j:
    json.dump(jsonData, j)

with open("file.json", 'r') as j:
    print(json.load(j))
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