Question

Python programming problem!

Suppose that there is a json file called data from the desktop. I want to print the value with the key of "year" and "country".

Json file below:

{

"A":{

"year":11,

"grade":A,

"country":America},

"B":{

"year":18,

"grade":C,

"country":England},

"C":{

"year":19,

"grade":B,

"country":China},}

I want a code that I can only replace the name of key from year to grade and the code could be work.

Answer 1

import json 

fName = input('Enter json file name: ')
lines = open(fName).readlines()
lines = [l.strip() for l in lines if l.strip() != '']
content = ' '.join(lines)

dataDict = json.loads(content)

# You cna print below to check the dict content
#print(dataDict)

# now you want to print the value for key 'year'
for (x, y) in dataDict.items():
    print(y['year'])
    print(y['country'])

# to change the key in dict object
for (x, y) in dataDict.items():
    print(y['year'])
    print(y['country'])


# to change the key in dict object
for (x, y) in dataDict.items():
    # change year key to year1
    y['year1'] = y['year']
    del y['year']

print(dataDict)

===========================

Your json file is incorrect. That is not a valid json. The strigns should be enclosed in quotes..
The valid json is below:

{
"A":{
"year":11,
"grade":"A",
"country":"America"},
"B":{
"year":18,
"grade":"C",
"country":"England"},
"C":{
"year":19,
"grade":"B",
"country":"China"}}

================

Please upvote, as i have given the exact answer as asked in question. Still in case of any concerns in code, let me know in comments. Thanks!