merging json with python

Question

I have following code to merge values in my json:

from jsonmerge import merge

with open('env.json') as data_file:
    data = json.load(data_file)
    result2 = merge("", data.get('default_attributes'))
    result3 = merge(result2, data.get('normal_attributes'))
    result4 = merge(result3, data.get('override_attributes'))
    result5 = merge(result4, data.get('force_override_attributes'))
    > print result4, result5
    result6 = merge(result5, data.get('automatic_attributes'))
    cookbook_versions = {"cookbook_versions" : data.get('cookbook_versions')}
    result7 = merge(result6, cookbook_versions)

Now when I print result4, result5 I get :

result4 = {u'modmon': {u'env': u'dev'}, u'default': {u'env': u'developmen-jq'}, u'paypal': {u'artifact': u'%5BINTEGRATION%5D'}, u'windows': {u'password': u'Pib1StheK1N5'}, u'task_sched': {u'credentials': u'kX?rLQ4XN$q'}, u'seven_zip': {u'url': u'https://.io/artifactory/djcm-zip-local/djcm/chef/paypal/7z1514-x64.msi'}, u'7-zip': {u'home': u'%SYSTEMDRIVE%\7-zip'}}

result5 = None

which doesn't make sense to me as in result5 I'm merging result 4 which already has content in it then why does it come out null ?

I hope that this is a fake password...

ffarquet
– ffarquet

2016-07-27 16:47:57 +00:00
Commented Jul 27, 2016 at 16:47 — ffarquet
– ffarquet, Commented Jul 27, 2016 at 16:47
yup removed it and is fake. :D

Scooby
– Scooby

2016-07-27 16:48:35 +00:00
Commented Jul 27, 2016 at 16:48 — Scooby
– Scooby, Commented Jul 27, 2016 at 16:48

Arun Ghosh · Accepted Answer · 2016-07-27 16:53:51Z

2

If data.get('force_override_attributes') is None then merge(result4, data.get('force_override_attributes')) is None

>>> a = {"a":10}
>>> b = merge(a, None)
>>> print b 
    None

What you can do is:

result5 = merge(result4, data.get('force_override_attributes') or {})

So even if it is an None the value of result4 will be retained.

or another option is to reverse the order, this should also work:

result5 = merge(data.get('force_override_attributes'), result4)

edited Jul 27, 2016 at 16:53

answered Jul 27, 2016 at 16:49

Arun Ghosh

7,7741 gold badge28 silver badges38 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Scooby Over a year ago

why is that ? Shoudnt merge merge the two values and not overwrite non common values? any doc links to support this ?

Collectives™ on Stack Overflow

merging json with python

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related