def nested_assign(obj, addr, val):
    """Given object and an address in that object, assign value to that address."""
    for i, (entry_type, entry_val) in enumerate(addr):
        if i == len(addr) - 1:
            if entry_type == "ind":
                obj[entry_val] = val
            elif entry_type == "attr":
                setattr(obj, entry_val, val)
        else:
            if entry_type == "ind":
                obj = obj[entry_val]
            elif entry_type == "attr":
                with warnings.catch_warnings():
                    warnings.simplefilter("ignore")
                    obj = getattr(obj, entry_val)