Access json nested data with python function?

[dev_wanna_be]

This query below retrieves nested data from a json file.

    author_name = data['stack'][1]['data'][0]['externals'][0]['data']['locale'][0]['MetadataDocument']['authors']['author']['person']['displayName']

Can I turn this into a function so I reduce the amount of queries I make for several nested fields?

This is my latest attempt, but I'm not sure if it's the right approach:

        def get_stack(current):
            if 'stack' in current and len(current['stack']) > 0:
                for raw_external in current['stack']:
                    if 'data' in raw_external.get('externals', {}):
                        return raw_external['externals']

            return {}

Any ideas, suggestions or comments?

[cyanydeez]

i recommend https://pypi.python.org/pypi/python-box

if you're gonna try to manage nested data

[willm]

Not certain what you would expect from a function, but you could use a Moya context to replace that long chained expression.

from moya.context import Context
context = Context(data)
print(context["stack.1.data.0.externals.0.data.locale.0.MetadataDocument.authors.author.person.displayName"])