[Python] Overpass : null geometry for center of ways

I'm trying to extract some ways of OpenStreetMap by using Overpass on a specific tag. The trick is to replace the LineString geometries by a Point center. To doing that, the request I used was :

area[name="Strasbourg"]->.targetArea;
(
way["type:FR:FINESS"](area.targetArea);
);
out center;


It worked fine and I can get info and geometry by exporting the GeoJSON from Overpass-turbo and open it in a software like QGIS :



I tried to adapt this in a Python script in order to automatize the process :

import overpass
import pandas as pd
import geopandas as gpd

api = overpass.API()
r = api.get(f"""
area[name="Strasbourg"]->.targetArea;
(
way["type:FR:FINESS"](area.targetArea);
);
out center;
""")
df = pd.json_normalize(r["features"])


But in the first df's columns, I've got for geometry LineString and null coordinates, unlike the Overpass-turbo manual export :



What did I miss ? I tried to update the end of request with something like :

out geom;
out center;


Without any success.

Continue reading...