Welcome to plpygis’s documentation!

plpygis is a pure Python module that can convert geometries to and from the PostGIS geometry type, WKB, EWKB, WKT, EWKT, GeoJSON and Shapely formats in addition to implementing the __geo_interface__ standard. plpygis is intended for use in PL/Python functions but it can also be used in general-purpose Python code that requires support for geospatial types.

Contents:

• Installation
  • Requirements
  • Python Package Index
  • Source
• Basic usage
  • Geometry
  • Exceptions
• Geometry subclasses
  • Creation
  • Conversion
  • Editing
  • Composition
  • SRIDs
  • Dimensionality
  • Multigeometries
  • Performance considerations
• PL/Python
  • Enabling PL/Python
  • Function declarations
  • Type mappings
  • Arrays and sets
  • Shared data
  • plpy
  • Aggregate functions
• Examples
  • Conversion
  • External services
  • Rendering output
  • Spatial aggregate function
• plpygis package
  • Geometry
  • Point
  • LineString
  • Polygon
  • MultiPoint
  • MultiLineString
  • MultiPolygon
  • GeometryCollection
  • PlpygisError
  • CoordinateError
  • CollectionError
  • DependencyError
  • WkbError
  • WktError
  • DimensionalityError
  • SridError
  • GeojsonError