CODEWITHSUNDEEP
pythonjsondictionary
Mark D
Mark D

Reputation: 163

Checking null object from JSON response in Python

I have the following code, and it works. I am checking if a JSON object has a full field and does not contain the underlying fields (Jira API, if you're interested). Is there a more concise way of writing the for loop?

myResponse = requests.get(url,auth=(urlUser,urlPass))

jd = myResponse.json()
myVals = jd['issues']

print(myVals[0].keys())
for issue in myVals:
    if issue['fields']['assignee'] is not None:
        assignee = issue['fields']['assignee']['displayName']
    else:
        assignee = "Unassigned"

Upvotes: 1

Views: 2336

Answers (1)

falsetru
falsetru

Reputation: 369474

You can use dict.get with fallback dictionary:

>>> issues = {'fields': {'assignee': None}}
>>> issues['fields']['assignee'] or {}  # fallback to an empty dictionary
{}
>>> (issues['fields']['assignee'] or {}).get('displayName', 'Unassigned')
'Unassigned'

for issue in myVals:
    assignee = (issue['fields']['assignee'] or {}).get('displayName', 'Unassigned')

OR define fallback dictionary like below:

UNASSIGNED = {'displayName': 'Unassigned'}
for issue in myVals:
    assignee = (issue['fields']['assignee'] or UNASSIGNED)['displayName']

Upvotes: 3

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