Python singledispatch

gistfile1.txt

from datetime import datetime
from functools import singledispatch

from utils.data.data_point import DataPoint


@singledispatch
def extract_data(item, **kwargs):
    return None  # unknown type


@extract_data.register(dict)
def _(item):
    return {
        "lat": float(item["latitude"]),
        "lng": float(item["longitude"]),
    }


@extract_data.register(DataPoint)
def _(item: DataPoint):
        return {
            "lat": item.latitude,
            "lng": item.longitude,
        }