JSON dump in Python writing newline character and carriage returns in file.

Question

When I open and write a valid json into a file with the command below, it writes newline and carriage return characters into the data.

with open('logs/output.json', 'w') as outfile:
     json.dump(json_data, outfile, indent=2, separators=(',', ': '))

output.json looks something like this:

{\r\n \"config\": {\r\n \"app\": {\r\n \"calendar\": {\r\n \"{tenant-key}calendar.reference }

How can I prevent this?

I've seen something like this before when converting a json string to json. What is the type of json_data? — Keith John Hutchison
– Keith John Hutchison, Commented Nov 1, 2018 at 23:12
How can you prevent what exactly? What would the expected output be? — Martijn Pieters
– Martijn Pieters, Commented Nov 1, 2018 at 23:22
Carriage returns are valid according to the JSON spec. Why do you want to disable this default and generally valid behaviour? — Rich Tier
– Rich Tier, Commented Nov 1, 2018 at 23:52

Rich Tier · Accepted Answer · 2018-11-01 23:56:59Z

5

json.dump(json_data, outfile, separators=(',', ':'))

Indent keywords argument needed only if you want indents on your new lines. You're activating "pretty print" by doing that.

answered Nov 1, 2018 at 23:56

Rich Tier

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dylanlarrivee · Accepted Answer · 2019-07-13 18:04:37Z

2

I got something similar to work by doing something like this:

newJson = json.dump(json_data, outfile, indent=2, separators=(',', ': '))
with open('logs/output.json', 'w') as json_file:
        json_file.write(newJson)

answered Jul 13, 2019 at 18:04

dylanlarrivee

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