Parsing formatted JSON with Python

Question

I want to parse JSON. Its ok if I write JSON in one line

json_input = '{ "rate_of_climbing": 18.4, "speed_factor": 520}'

But if I have JSON formated then parser does not work:

json_input = '{ 
    "rate_of_climbing": 18.4, 
    "speed_factor": 520
}'

How can I get JSON to read for formatted string?

My full code:

import json
json_input = '{ 
    "rate_of_climbing": 18.4, 
    "speed_factor": 520
}'

try:
    decoded = json.loads(json_input)

    print json.dumps(decoded, sort_keys=True, indent=4)
    print "JSON parsing example: ", decoded['rate_of_climbing']
    print "Complex JSON parsing example: ", decoded['speed_factor']

except (ValueError, KeyError, TypeError):
    print "JSON format error"

The way you define the Python string doesn't work. The json module works just fine... — Martijn Pieters
– Martijn Pieters, Commented Dec 24, 2013 at 12:29
Presumably you are getting a SyntaxError here; if you are getting a different error, can you remove the try and except lines (unindent the rest) and show us the error you are getting? Include the sample input that reproduces the problem. — Martijn Pieters
– Martijn Pieters, Commented Dec 24, 2013 at 12:32

falsetru · Accepted Answer · 2013-12-24 12:29:47Z

6

Use '''triple-quoted string literals''' (or """triple-quoted string literals""") if the string contains newlines.

json_input = '''{ 
    "rate_of_climbing": 18.4, 
    "speed_factor": 520
}'''

answered Dec 24, 2013 at 12:29

falsetru

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Comments

xiangzhuyuan_shell · Accepted Answer · 2013-12-24 12:41:11Z

1

I think you can store these json data info a file;
then read all:

json_data = ''.join([line.strip() for line in open('path to json file')])

then,

_data = json.loads(json_data) 
json.dumps(_data)

answered Dec 24, 2013 at 12:41

xiangzhuyuan_shell

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1 Comment

Aidis Over a year ago

Thanks, maybe I will use your suggestion later!

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