Cleans JSON object to make it DynamoDB friendly.

clean_json.py

def clean_json(x):
    """
    Cleans JSON object to make it DynamoDB friendly.
    It removes any keys that have an empty value.
    It moves all float values to string.
    """
    out = dict()
    if type(x) is dict:
        for k in x:
            if x[k] not in ["", {}, []]:
                out[k] = clean_json(x[k])
    elif type(x) is list:
        return[clean_json(x[a]) for a in range(len(x))]
    elif type(x) is float:
        return str(x)
    else:
        return x
    return out