geopackage-toolkit

Python toolkit for GeoPackage spatial data. Validate, query, and operate on spatial data without PostGIS or ArcGIS.

Zero compiled dependencies. Uses SpatiaLite (embedded in SQLite) for all spatial operations. One file format (.gpkg), one dependency chain, clean Python API.

from geopkgtoolkit import connect, validate_layers, count_in_zones

# Validate geometry health
report = validate_layers("data.gpkg", expected_srid=4326)
print(report.summary())

# Count buildings per administrative zone
con = connect("data.gpkg")
counts = count_in_zones(con, "buildings", "admin3")
for zone_id, count in counts[:5]:
    print(f"Zone {zone_id}: {count} buildings")

Why

GeoPackage is the OGC standard that replaces Shapefile. It's SQLite-based, supports vector + raster + tiles, and works everywhere. But the tooling around it is fractured:

• ogr2ogr works but isn't Pythonic
• GeoPandas adds heavy compiled dependencies
• SpatiaLite has Windows quirks nobody documents
• No single package covers validate-query-convert-publish

This toolkit fills that gap. Local-first, no server required.

Installation

pip install geopackage-toolkit

Prerequisites

SpatiaLite must be installed on your system:

CLI

# Validate geometry health
geopkg validate data.gpkg --srid 4326

# Count features per zone
geopkg count data.gpkg --features buildings --zones admin3

# Show layer info
geopkg info data.gpkg

# Buffer features (output saved as new layer in same GeoPackage)
geopkg buffer data.gpkg --layer buildings --distance 100 --output buffered_buildings

# Clip a layer to a boundary
geopkg clip data.gpkg --source buildings --clip district_boundary --output clipped_buildings

# Spatial intersection of two layers
geopkg intersect data.gpkg --layer-a buildings --layer-b flood_zones --output buildings_in_flood

Python API

Validate

from geopkgtoolkit import validate_layers, validate_layer

# Validate all layers
report = validate_layers("data.gpkg", expected_srid=4326)
print(report.summary())
# GeoPackage: data.gpkg
# 9 layers, 685,968 features, 0 warnings
#   OSM_Buildings: 515,013 features, SRID=4326, OK
#   lbn_adm3: 1,627 features, SRID=4326, OK
#   ...

assert report.is_valid  # True if no warnings

# Validate a single layer
con = validate_layer(con, "buildings", expected_srid=4326)

Checks: null geometries, empty geometries, invalid geometries (self-intersections), SRID mismatches, bounding box sanity.

Query

from geopkgtoolkit import connect, count_in_zones, bbox_filter

con = connect("data.gpkg")

# Count features per zone (rtree-accelerated)
counts = count_in_zones(con, "buildings", "admin3")
# Returns: [(zone_fid, count), ...]

# Bounding box filter (rtree-accelerated)
fids = bbox_filter(con, "buildings", (35.4, 33.8, 35.6, 33.9))
# Returns: [fid, ...]

# Point-in-polygon classification
from geopkgtoolkit import points_in_polygons
result = points_in_polygons(con, "pois", "districts")
# Returns: [(point_fid, polygon_fid_or_None), ...]

Spatial Operations

from geopkgtoolkit import connect, buffer, clip, intersect

con = connect("data.gpkg")

# Buffer features by a distance (CRS units)
buffered = buffer(con, "buildings", distance=100, output_table="buffered_buildings")
# Creates new layer with buffered polygons

# Clip features to a boundary
clipped = clip(con, "buildings", "district_boundary", output_table="clipped_buildings")
# Creates new layer with features clipped to polygon boundary

# Spatial intersection of two layers
result = intersect(con, "buildings", "flood_zones", output_table="buildings_in_flood")
# Creates new layer with the intersection of two layers

All operations write results back to the same GeoPackage file. Attributes from both layers are preserved in intersection.

Connect

from geopkgtoolkit import connect

con = connect("data.gpkg")  # Auto-loads SpatiaLite
layers = con.execute("SELECT table_name FROM gpkg_geometry_columns").fetchall()
con.close()

How It Works

All spatial operations use SpatiaLite (embedded spatial SQL extension for SQLite) with GeoPackage's native rtree tables for spatial indexing. This means:

• No server process (unlike PostGIS)
• No compiled Python bindings (unlike GeoPandas/GDAL wheels)
• Single .gpkg file per dataset
• Works on Windows, Linux, macOS

Performance

The toolkit auto-creates rtree indexes when missing. First run builds the index, subsequent runs use it.

Roadmap

• v0.1.0: Validate + Query modules
• v0.2.0: Spatial operations (buffer, clip, intersect) with CLI commands
• v0.3.0: Format conversion (Shapefile, GeoJSON, FlatGeobuf to/from GeoPackage)
• v0.4.0: Config-driven batch pipeline
• v0.5.0: Vector tile generation for web publishing
• v1.0.0: Full toolkit with visualization and schema extraction

Contributing

Contributions welcome. Please open an issue first to discuss what you'd like to change.

License

MIT

Acknowledgments

Built on top of SpatiaLite by Alessandro Furieri and the GeoPackage OGC standard.