Untangles/flattens a nested dictionary.

untangle.py

jd = {
    "left": {
        "left": {
            "type": "Literal",
            "value": "a"
        },
        "right": {
            "type": "Literal",
            "value": "b"
        }
    },
    "right": {
        "type": "Literal",
        "value": "path"
    }
}

def builddictdata(pkey, pval):
    try:
        for item, itemval in pval.items():
            temp1 = pkey + '.' + item
            yield temp1, itemval
    except AttributeError:
        yield pkey, pval

# Continue indefinitely until the last depth
while True:
    # starmap is basically map() for iterables
    mapped = starmap(builddictdata, jd.items())
    print(mapped)
    # chain from iterable will untangle the nested data 
    jd = dict(chain.from_iterable(mapped))
    print(jd)
    # We break out if no more depths are found
    if not any(isinstance(value, dict) for value in jd.values()):
        break
        
print(jd)