A more appropriate way of checking if the input is a shapely point object

Asked Aug 02 '20 at 08:29

Active Aug 02 '20 at 08:29

Viewed 13 times

I am currently on a tutorial regarding Python GIS. There's an exercise that asks to create a function that takes a list of Shapely Point objects as a parameter and returns a LineString object of those input points. The function should first check that the input list really contains Shapely Point(s). What I did is this.

from shapely.geometry import LineString

def createLineGeom(points):
    for i in points:
        if str(type(i)) == "<class 'shapely.geometry.point.Point'>":
            pass
        else:
            return print(f'Invalid input: Type not shapely Point, {i}')
    return LineString(points)

Can someone show me a more appropriate way of checking if the input is a shapely point object? Thanks

asked Aug 02 '20 at 08:29

Wade Watts

`isinstance(i, Point)`? – jonrsharpe Aug 02 '20 at 08:30
That's it! Thanks for this. – Wade Watts Aug 02 '20 at 08:36
Alternatively, there is also a [`geom_type`](https://shapely.readthedocs.io/en/latest/manual.html#object.geom_type) attribute that you can check against, but normally the `isinstance` is the way to go. – Georgy Aug 02 '20 at 09:01

A more appropriate way of checking if the input is a shapely point object

0 Answers0