Function _validate_locations_basics

folium/utilities.py:114–126

Helper function that does basic validation of line and multi-line types.

(locations: TypeMultiLine)

def _validate_locations_basics(locations: TypeMultiLine) -> None:
    """Helper function that does basic validation of line and multi-line types."""
    try:
        iter(locations)
    except TypeError:
        raise TypeError(
            "Locations should be an iterable with coordinate pairs,"
            f" but instead got {locations!r}."
        )
    try:
        next(iter(locations))
    except StopIteration:
        raise ValueError("Locations is empty.")


def validate_locations(locations: TypeLine) -> List[List[float]]: