also in the std library, https://docs.python.org/3/library/collections.html#collections.namedtuple https://docs.python.org/3/library/collections.html#collectio.

also in the std library, https://docs.python.org/3/library/collections.html#collections.namedtuple https://docs.python.org/3/library/collections.html#collectio... field_names can take a single space separated string