JSON.load won't work with json one-liner - python

I have the same json data in two forms - one is a one-liner, the second one is just formatted output.
JSON A:
{"id":1, "name":"BoxH", "readOnly":true, "children":[{ "id":100, "name":"Box1", "readOnly":true, "children":[ { "id":1003, "name":"Box2", "children":[ { "id":1019, "name":"BoxDet", "Ids":[ "ABC", "ABC2", "DEF2", "DEFHD", "LKK" ]}]}]}]}
and JSON B:
{
"id":1,
"name":"BoxH",
"readOnly":true,
"children":[
{
"id":100,
"name":"Box1",
"readOnly":true,
"children":[
{
"id":1003,
"name":"Box2",
"children":[
{
"id":1019,
"name":"BoxDet",
"Ids":[
"ABC",
"ABC2",
"DEF2",
"DEFHD",
"LKK"
]
}
]
}
]
}
]
}
Why is it, that the code:
import json
if open('input_file.json'):
output_json = json.load('input_file.json')
in case A throws
ValueError: No JSON object could be decoded
and the case B works correctly. I'm just wondering why is it so? I thought that the JSON A and JSON B are the same for json.load. What should I do to get the both cases working?

json.load accept a file object (not file path). And you should keep the file reference. Try following:
import json
with open('input_file.json') as f:
output_json = json.load(f)
Alternatively you can use json.loads which accept serialized json string:
import json
with open('input_file.json') as f:
output_json = json.loads(f.read())

Acutally in my case there was problem with coding. As soon as I've converted the one-liner-file to UTF-8 without BOM, it started to working without any problems. The coding before was ANSI. So.. lesson learned: check the file coding.

Related

json dumps not including attribute name

I am writing a python lambda function that reads in a json file from s3 and then will take one of the nodes and send it to another lambda function. Here is my code:
The json snippet I want
"jobstreams": [
{
"jobname": "team-summary",
"bucket": "aaa-bbb",
"key": "team-summary.json"
}
step 1 – convert JSON to python objects for processing
note: these I got from another Stack Overflow guru - thanks!!
def _json_object_hook(d): return namedtuple('X', d.keys())(*d.values())
def json2obj(data): return json.loads(data, object_hook=_json_object_hook)
routes = json2obj(jsonText)
step 2 - I then traverse the python objects and find the json I need and dump it
for jobstream in jobstreams:
x = json.dumps(jobstream, ensure_ascii=False)
Howeever, when I print it out, I only have the values not the attributes. Why is that?
print(json.dumps(jobstream, ensure_ascii=False))
yields
["team-summary", "aaa-bbb", "team-summary.json"]
I'm assuming your full json file looks somewhat like what I have in my example
import json
js = {"jobstreams": [
{
"jobname": "team-summary",
"bucket": "aaa-bbb",
"key": "team-summary.json"
},
{
"jobname": "team-2222",
"bucket": "aaa-2222",
"key": "team-222.json"
}
]}
def extract_by_jobname(jobname):
for d in js['jobstreams']:
if d['jobname'] == jobname:
return d
json.dumps(extract_by_jobname("team-summary"))
# '{"jobname": "team-summary", "bucket": "aaa-bbb", "key": "team-summary.json"}'
I ended up creating a new Dictionary from the list that the json.dumps gave me.
["team-summary", "aaa-bbb", "team-summary.json"]
once i had the new dictionary (that is flat), then i converted that to json.... probably not the most efficient approach but i have other fish to fry. THANKS to all for your help!

Difficulties using Python request (POST) + API

Im trying to use a simple API with python. I get the data with the code below but, but I can't seem to parse it. When i print the type of variable "c" it says "unicode". I want a Json object or dictionary so I can use the information.
I have I tried various ways to solve this but I'm not sure if the output from the API (below) is actually Json or why it doesn't work properly.
import requests
import json
import urllib
test1 ={
"query": [
{
"code": "SNI2007",
"selection": {
"filter": "item",
"values": [
"47.4+47.54"
]
}
},
{
"code": "ContentsCode",
"selection": {
"filter": "item",
"values": [
"HA0101A9",
"HA0101B4"
]
}
},
{
"code": "Tid",
"selection": {
"filter": "item",
"values": [
"2010M01",
"2010M02",
"2010M03",
"2010M04",
"2010M05",
"2010M06",
"2010M07",
"2010M08",
"2010M09",
"2010M10",
"2010M11",
"2010M12",
"2011M01",
"2011M02",
"2011M03",
"2011M04",
"2011M05",
"2011M06",
"2011M07",
"2011M08",
"2011M09",
"2011M10",
"2011M11",
"2011M12",
"2012M01",
"2012M02",
"2012M03",
"2012M04",
"2012M05",
"2012M06",
"2012M07",
"2012M08",
"2012M09",
"2012M10",
"2012M11",
"2012M12",
"2013M01",
"2013M02",
"2013M03",
"2013M04",
"2013M05",
"2013M06",
"2013M07",
"2013M08",
"2013M09",
"2013M10",
"2013M11",
"2013M12",
"2014M01",
"2014M02",
"2014M03",
"2014M04",
"2014M05",
"2014M06",
"2014M07",
"2014M08",
"2014M09",
"2014M10",
"2014M11",
"2014M12",
"2015M01",
"2015M02",
"2015M03",
"2015M04",
"2015M05",
"2015M06",
"2015M07",
"2015M08",
"2015M09",
"2015M10",
"2015M11",
"2015M12",
"2016M01",
"2016M02",
"2016M03",
"2016M04",
"2016M05",
"2016M06",
"2016M07",
"2016M08",
"2016M09",
"2016M10",
"2016M11",
"2016M12",
"2017M01",
"2017M02",
"2017M03",
"2017M04",
"2017M05",
"2017M06",
"2017M07",
"2017M08",
"2017M09",
"2017M10",
"2017M11",
"2017M12",
"2018M01",
"2018M02",
"2018M03",
"2018M04"
]
}
}
],
"response": {
"format": "json"
}
}
response = requests.post("http://api.scb.se/OV0104/v1/doris/sv/ssd/START/HA/HA0101/HA0101B/Detoms07", json = test1)
dat = response.content
b = json.dumps(dat)
c = json.loads(b)
print type(b)
This is what I get if I print the "response.content" variable.
{"columns":[{"code":"SNI2007","text":"näringsgren SNI 2007","type":"d"},{"code":"Tid","text":"månad","type":"t"},{"code":"HA0101A9","text":"Löpande priser","type":"c"},{"code":"HA0101B4","text":"Fasta priser","type":"c"}],"comments":[],"data":[{"key":["47.4+47.54","2010M01"],"values":["90.3","45.0"]},{"key":["47.4+47.54","2010M02"],"values":["80.9","40.3"]},{"key":["47.4+47.54","2010M03"],"values":["91.3","45.7"]},{"key":["47.4+47.54","2010M04"],"values":["83.9","43.5"]},{"key":["47.4+47.54","2010M05"],"values":["87.4","45.7"]},{"key":["47.4+47.54","2010M06"],"values":["97.6","52.6"]},{"key":["47.4+47.54","2010M07"],"values":["99.5","54.2"]},{"key":["47.4+47.54","2010M08"],"values":["105.2","57.3"]},{"key":["47.4+47.54","2010M09"],"values":["108.9","60.4"]},{"key":["47.4+47.54","2010M10"],"values":["107.9","60.7"]},{"key":["47.4+47.54","2010M11"],"values":["107.9","61.3"]},{"key":["47.4+47.54","2010M12"],"values":["181.9","106.1"]},{"key":["47.4+47.54","2011M01"],"values":["95.3","55.9"]},{"key":["47.4+47.54","2011M02"],"values":["80.1","47.3"]},{"key":["47.4+47.54","2011M03"],"values":["88.8","53.5"]},{"key":["47.4+47.54","2011M04"],"values":["79.4","48.5"]},{"key":["47.4+47.54","2011M05"],"values":["85.9","53.0"]},{"key":["47.4+47.54","2011M06"],"values":["90.2","57.3"]},{"key":["47.4+47.54","2011M07"],"values":["95.5","61.1"]},{"key":["47.4+47.54","2011M08"],"values":["97.1","62.3"]},{"key":["47.4+47.54","2011M09"],"values":["96.3","62.4"]},{"key":["47.4+47.54","2011M10"],"values":["97.0","63.6"]},{"key":["47.4+47.54","2011M11"],"values":["104.5","69.2"]},{"key":["47.4+47.54","2011M12"],"values":["171.4","113.9"]},{"key":["47.4+47.54","2012M01"],"values":["93.7","62.8"]},{"key":["47.4+47.54","2012M02"],"values":["78.3","53.1"]},{"key":["47.4+47.54","2012M03"],"values":["87.2","60.1"]},{"key":["47.4+47.54","2012M04"],"values":["82.7","57.4"]},{"key":["47.4+47.54","2012M05"],"values":["81.1","56.8"]},{"key":["47.4+47.54","2012M06"],"values":["92.8","66.3"]},{"key":["47.4+47.54","2012M07"],"values":["88.4","64.0"]},{"key":["47.4+47.54","2012M08"],"values":["92.7","68.0"]},{"key":["47.4+47.54","2012M09"],"values":["96.1","71.5"]},{"key":["47.4+47.54","2012M10"],"values":["92.4","69.7"]},{"key":["47.4+47.54","2012M11"],"values":["99.2","75.9"]},{"key":["47.4+47.54","2012M12"],"values":["147.5","115.5"]},{"key":["47.4+47.54","2013M01"],"values":["89.6","70.6"]},{"key":["47.4+47.54","2013M02"],"values":["75.5","59.9"]},{"key":["47.4+47.54","2013M03"],"values":["79.5","63.7"]},{"key":["47.4+47.54","2013M04"],"values":["76.2","62.0"]},{"key":["47.4+47.54","2013M05"],"values":["79.0","65.0"]},{"key":["47.4+47.54","2013M06"],"values":["84.6","70.5"]},{"key":["47.4+47.54","2013M07"],"values":["85.7","73.0"]},{"key":["47.4+47.54","2013M08"],"values":["91.6","77.8"]},{"key":["47.4+47.54","2013M09"],"values":["90.6","77.4"]},{"key":["47.4+47.54","2013M10"],"values":["93.0","79.8"]},{"key":["47.4+47.54","2013M11"],"values":["97.4","84.3"]},{"key":["47.4+47.54","2013M12"],"values":["151.0","133.0"]},{"key":["47.4+47.54","2014M01"],"values":["92.3","81.6"]},{"key":["47.4+47.54","2014M02"],"values":["75.7","67.6"]},{"key":["47.4+47.54","2014M03"],"values":["82.3","74.5"]},{"key":["47.4+47.54","2014M04"],"values":["79.6","72.7"]},{"key":["47.4+47.54","2014M05"],"values":["80.3","73.9"]},{"key":["47.4+47.54","2014M06"],"values":["92.7","85.9"]},{"key":["47.4+47.54","2014M07"],"values":["88.0","82.7"]},{"key":["47.4+47.54","2014M08"],"values":["94.4","88.6"]},{"key":["47.4+47.54","2014M09"],"values":["100.2","95.3"]},{"key":["47.4+47.54","2014M10"],"values":["103.0","98.9"]},{"key":["47.4+47.54","2014M11"],"values":["104.4","100.0"]},{"key":["47.4+47.54","2014M12"],"values":["159.9","154.1"]},{"key":["47.4+47.54","2015M01"],"values":["95.9","93.3"]},{"key":["47.4+47.54","2015M02"],"values":["80.5","78.3"]},{"key":["47.4+47.54","2015M03"],"values":["90.4","88.5"]},{"key":["47.4+47.54","2015M04"],"values":["82.6","81.2"]},{"key":["47.4+47.54","2015M05"],"values":["85.9","84.4"]},{"key":["47.4+47.54","2015M06"],"values":["97.5","96.8"]},{"key":["47.4+47.54","2015M07"],"values":["95.1","95.0"]},{"key":["47.4+47.54","2015M08"],"values":["93.7","93.8"]},{"key":["47.4+47.54","2015M09"],"values":["98.4","99.4"]},{"key":["47.4+47.54","2015M10"],"values":["105.5","107.5"]},{"key":["47.4+47.54","2015M11"],"values":["114.6","116.9"]},{"key":["47.4+47.54","2015M12"],"values":["159.9","164.9"]},{"key":["47.4+47.54","2016M01"],"values":["91.4","95.8"]},{"key":["47.4+47.54","2016M02"],"values":["84.7","90.1"]},{"key":["47.4+47.54","2016M03"],"values":["89.6","96.2"]},{"key":["47.4+47.54","2016M04"],"values":["87.9","94.8"]},{"key":["47.4+47.54","2016M05"],"values":["84.6","92.1"]},{"key":["47.4+47.54","2016M06"],"values":["95.0","105.6"]},{"key":["47.4+47.54","2016M07"],"values":["93.0","104.3"]},{"key":["47.4+47.54","2016M08"],"values":["96.1","106.9"]},{"key":["47.4+47.54","2016M09"],"values":["98.2","110.5"]},{"key":["47.4+47.54","2016M10"],"values":["103.2","116.4"]},{"key":["47.4+47.54","2016M11"],"values":["116.6","132.3"]},{"key":["47.4+47.54","2016M12"],"values":["155.6","177.2"]},{"key":["47.4+47.54","2017M01"],"values":["94.7","108.3"]},{"key":["47.4+47.54","2017M02"],"values":["79.2","91.4"]},{"key":["47.4+47.54","2017M03"],"values":["88.8","102.8"]},{"key":["47.4+47.54","2017M04"],"values":["80.3","93.9"]},{"key":["47.4+47.54","2017M05"],"values":["82.9","97.4"]},{"key":["47.4+47.54","2017M06"],"values":["94.2","111.0"]},{"key":["47.4+47.54","2017M07"],"values":["88.3","103.4"]},{"key":["47.4+47.54","2017M08"],"values":["91.0","105.8"]},{"key":["47.4+47.54","2017M09"],"values":["92.6","107.9"]},{"key":["47.4+47.54","2017M10"],"values":["97.9","115.2"]},{"key":["47.4+47.54","2017M11"],"values":["121.2","142.7"]},{"key":["47.4+47.54","2017M12"],"values":["149.7","177.7"]},{"key":["47.4+47.54","2018M01"],"values":["98.1","116.3"]},{"key":["47.4+47.54","2018M02"],"values":["79.0","94.6"]},{"key":["47.4+47.54","2018M03"],"values":["93.0","112.9"]},{"key":["47.4+47.54","2018M04"],"values":["85.6","104.3"]}]}
There's two strategies you can use, response.json() will give you back a dict with all the JSON in key-value format using requests internal JSON parser, the other if you want to use the actual json library is to do json_data = json.loads(response.text) and allow the json library to parse it instead.
In general the requests JSON parser is probably enough for what you need.

Getting TypeError while spliting Json data?

I have A json data like this:
json_data = '{"data":"[{"Date":"3/17/2017","Steam Total":60},{"Date":"3/18/2017","Steam Total":15},{"Date":"3/19/2017","Steam Total":1578},{"Date":"3/20/2017","Steam Total":1604}]", "data_details": "{"data_key":"Steam Total", "given_high":"1500", "given_low":"1000", "running_info": []}"}'
json_input_data = json_data["data"]
json_input_additional_info = json_data["data_details"]
I am getting an error:
TypeError: string indices must be integers, not str
I think there is an error in the json data. Can someone Help me on this?
In you code has some issues.
The code: json_input_data = json_data["data"], the variable json_data is not a Json Object, is a String Object and you try get a string position by string key, for get a Json object from string json use json api: json
You Json string isn't valid, this is a valid version:
{"data":[{"Date":"3/17/2017","Steam Total":60},{"Date":"3/18/2017","Steam Total":15},{"Date":"3/19/2017","Steam Total":1578},{"Date":"3/20/2017","Steam Total":1604}], "data_details": {"data_key":"Steam Total", "given_high":"1500", "given_low":"1000", "running_info": []}}
Now, your code works fine.
Try parsing your json_data to JSON format (with JSON.parse(json_data)). Currently it's type is string - which is exactly what your error says.
As Pongpira Upra pointed out, your json is not well formed and should be something like this.
{
"data":[
{
"Date":"3/17/2017",
"Steam Total":60
},
{
"Date":"3/18/2017",
"Steam Total":15
},
{
"Date":"3/19/2017",
"Steam Total":1578
},
{
"Date":"3/20/2017",
"Steam Total":1604
}
],
"data_details":{
"data_key":"Steam Total",
"given_high":"1500",
"given_low":"1000",
"running_info":[]
}
}
In order to retrieve information you should write
json_data[0]["Date"]
This would print "3/17/2017"
You declare a string called json_data and, well, then it acts like a string. That is what the exception tells you. Like others here tried to say - you do also have an error in your data, but the exception you supplied is due to accessing the string as if it was a dictionary. You need to add a missing call to e.g. json.loads(...).
You were right. Your JSON is indeed wrong.
Can you try using this json?
{
"data":[
{
"Date":"3/17/2017",
"Steam Total":60
},
{
"Date":"3/18/2017",
"Steam Total":15
},
{
"Date":"3/19/2017",
"Steam Total":1578
},
{
"Date":"3/20/2017",
"Steam Total":1604
}
],
"data_details":{
"data_key":"Steam Total",
"given_high":"1500",
"given_low":"1000",
"running_info":[]
}
}

How do I read a json file into python?

I'm new to JSON and Python, any help on this would be greatly appreciated.
I read about json.loads but am confused
How do I read a file into Python using json.loads?
Below is my JSON file format:
{
"header": {
"platform":"atm"
"version":"2.0"
}
"details":[
{
"abc":"3"
"def":"4"
},
{
"abc":"5"
"def":"6"
},
{
"abc":"7"
"def":"8"
}
]
}
My requirement is to read the values of all "abc" "def" in details and add this is to a new list like this [(1,2),(3,4),(5,6),(7,8)]. The new list will be used to create a spark data frame.
Open the file, and get a filehandle:
fh = open('thefile.json')
https://docs.python.org/2/library/functions.html#open
Then, pass the file handle into json.load(): (don't use loads - that's for strings)
import json
data = json.load(fh)
https://docs.python.org/2/library/json.html#json.load
From there, you can easily deal with a python dictionary that represents your json-encoded data.
new_list = [(detail['abc'], detail['def']) for detail in data['details']]
Note that your JSON format is also wrong. You will need comma delimiters in many places, but that's not the question.
I'm trying to understand your question as best as I can, but it looks like it was formatted poorly.
First off your json blob is not valid json, it is missing quite a few commas. This is probably what you are looking for:
{
"header": {
"platform": "atm",
"version": "2.0"
},
"details": [
{
"abc": "3",
"def": "4"
},
{
"abc": "5",
"def": "6"
},
{
"abc": "7",
"def": "8"
}
]
}
Now assuming you are trying to parse this in python you will have to do the following.
import json
json_blob = '{"header": {"platform": "atm","version": "2.0"},"details": [{"abc": "3","def": "4"},{"abc": "5","def": "6"},{"abc": "7","def": "8"}]}'
json_obj = json.loads(json_blob)
final_list = []
for single in json_obj['details']:
final_list.append((int(single['abc']), int(single['def'])))
print(final_list)
This will print the following: [(3, 4), (5, 6), (7, 8)]

How to read an ascii file with json content: ValueError

I try to read this ascii file with this json content with the following function:
{ "directory": { "name": "/wiki", "files": { "file": [ { "name": "/wiki/a.txt", "digest": "97d37a2ff85fbe35e1bf8ad38934d8fb518a6a3fbeb9b0b9305ce98e992f9dd2 " },
{ "name": "/wiki/d.txt", "digest": "ef91ee1257c3faa49f86f343cfec66010e5810e99db9f42e88774f90cd5b95d9 " },] } } }
def readJsonFile(path):
with open(path) as json_file:
json_data = json.load(json_file)
return json_data
I get this error of no JSON object could be decoded:
ValueError: No JSON object could be decoded
I tried with json.loads and I get the error:
TypeError: expected string or buffer
Am I using the right function?
The data is not a valid json (It has a trailing ,).
But it's a valid python literal; you can use ast.literal_eval instead:
import ast
def readJsonFile(path):
with open(path) as json_file:
return ast.literal_eval(json_file.read())
Your json string is wrong, as validated by jsonint:

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