Hello, according to this page there was effort to add support for __geo_interface__ to GEOSGeometry:
https://code.djangoproject.com/wiki/GeoDjango1.2#GEOS
It seems that this is not available in Django (at least not in <3.2). Can anybody clarify?
If you look at the history of that page, you’ll see that that page was last edited about 11 years ago, I wouldn’t rely upon that as being useful information.
Is this supported by an existing Python library? (If so, would that be sufficient for what you’re trying to do?)
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The geometry can either be an object that implements the geo interface or GeoJSON-like object.
The workaround is to get the WKB from the GEOSGeometry and load it using shapely:
from shapely.wkb import loads
geometry = loads(model_instance.geometry.wkb.tobytes())
This page also lists GeoDjango as supporting the __geo_interface__:
In general, I’d say it is pretty widespread in the non-GeoDjango GIS community (fiona, shapely, rasterio, etc.).