[Solved] Python dictionary operations

Yes, you can do this recursively, if all you have is lists and dictionaries, then that is pretty trivial. Test for the object type, and for containers, recurse:

def unwrap_data(obj):
    if isinstance(obj, dict):
        if 'data' in obj:
            obj = obj['data']
        return {key: unwrap_data(value) for key, value in obj.items()}

    if isinstance(obj, list):
        return [unwrap_data(value) for value in obj]

    return obj

Personally, I like using the @functools.singledispatch() decorator to create per-type functions to do the same work:

from functools import singledispatch

@singledispatch
def unwrap_data(obj):
    return obj

@unwrap_data.register(dict)
def _handle_dict(obj):
    if 'data' in obj:
        obj = obj['data']
    return {key: unwrap_data(value) for key, value in obj.items()}

@unwrap_data.register(list)
def _handle_list(obj):
    return [unwrap_data(value) for value in obj]

This makes it a little easier to add additional types to handle later on.

Demo:

>>> request = {"data":{"a":[{"data": {"b": {"data": {"c": "d"}}}}]}}
>>> unwrap_data(request)
{'a': [{'b': {'c': 'd'}}]}