How to write non-spatial records to GPKG?

[mangecoeur]

Expected behavior and actual behavior.

The GPKG format allows to also add records without spatial data, however it's not clear how this can be done in fiona. Simply ommiting the geometry field causes an error (See below). Adding a geometry field with a value of None instead adds a geometry column filled with None

Steps to reproduce the problem.

crs = fiona.crs.from_epsg(4326)
schema = {'properties': {'schema_version': 'int',
  'source': 'str',
  'heating_degree_days': 'float',
  'cooling_degree_days': 'float'}}

data = {'properties': {'schema_version': 1,
  'source': 'OneBuilding TMY',
  'heating_degree_days': 3322.016666666667,
  'cooling_degree_days': 6781.799999999999}}

with fiona.open("package.gpkg", 'w', driver='GPKG', crs=crs, schema=schema, layer='climate',
                OVERWRITE='YES',
                SPATIAL_INDEX='NO'
                ) as package:
    package.write(data)

Result

File ~/Code/geneap/.venv/dev/lib/python3.10/site-packages/fiona/collection.py:568, in Collection.write(self, record)
    562 def write(self, record):
    563     """Stages a record for writing to disk.
    564     
    565     Note: Each call of this method will start and commit a
    566     unique transaction with the data source.
    567     """
--> 568     self.writerecords([record])

File ~/Code/geneap/.venv/dev/lib/python3.10/site-packages/fiona/collection.py:558, in Collection.writerecords(self, records)
    556 if self.mode not in ("a", "w"):
    557     raise OSError("collection not open for writing")
--> 558 self.session.writerecs(records, self)
    559 self._len = self.session.get_length()
    560 self._bounds = None

File fiona/ogrext.pyx:1396, in fiona.ogrext.WritingSession.writerecs()

AttributeError: 'dict' object has no attribute 'properties'

Fiona and GDAL version and provenance

Fiona 1.9.3 from pip, GDAL from homebrew