JSON reading in python

Question

I am using python 2.7 .I am creating 3 lists (float values (if it matters at all)), i am using json object to save it in a file.

Say for eg.

L1=[1,2,3,4,5]
L2=[11,22,33,44,55]
L3=[22,33,44,55,66]
b={}
b[1]=L1
b[2]=L2
b[3]=L3
json.dump(b,open("file.txt","w"))

I need to read these values back from this "file.txt" into the 3 list. Can anyone please point me to the resource? How do i proceed with retrieving these values?

Possible duplicate of http://stackoverflow.com/questions/8730119/retrieving-json-objects-from-a-text-file-using-python — Tanveer Alam, Nov 03 '14 at 08:47

score 2 · Answer 1 · edited May 23 '17 at 11:57

2

try

content = json.load(open('file.txt'))

or using a the with context manager to close the file for you:

with open('file.txt') as f:
    content = json.load(f)

Also, read the library's documentation

edited May 23 '17 at 11:57

Community

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1

answered Nov 03 '14 at 08:48

Reut Sharabani

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Yes, the Documentation really helped. – SeasonalShot Nov 03 '14 at 08:56

score 0 · Answer 2 · answered Nov 03 '14 at 08:57

0

I used this following code:

import json
path=r"file.txt"
for line in open(path):
    obj = json.loads(line)

x=obj['1']
y=obj['2']
z=obj['3']

Now, i will have the List L1 in x, L2 in y and L3 in z

answered Nov 03 '14 at 08:57

SeasonalShot

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JSON reading in python

2 Answers2