impl_named_tuple.py

# Old style, before Python 3.7
from collections import namedtuple
attribute_names = ["longitude", "latitude", "address"]
Position = namedtuple("Position", attribute_names, defaults=(None,))

# Python 3.7 and later:
from typing import NamedTuple

class Position(NamedTuple):
    longitude: int
    latitude: int
    address: int

# Both are used in the same way
pos1 = Position(49.0127913, 8.4231381, "Parkstraße 17")
pos2 = Position(42.1238762, 9.1649964)

def get_distance(p1: Position, p2: Position) -> float:
    pass