Initial package scaffolding

geoarrow/core/array/__init__.py

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+from .point import PointArray

geoarrow/core/array/point.py

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+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import TYPE_CHECKING
+
+import pyarrow as pa
+
+if TYPE_CHECKING:
+    import geoarrow.geo
+    import geoarrow.geos
+    import geoarrow.proj
+
+
+@dataclass
+class PointArray:
+
+    arr: pa.Array
+
+    def __post_init__(self):
+        validate_point_array(self.arr)
+
+    @property
+    def geo(self) -> geoarrow.geo.PointArray:
+        """Access GeoRust algorithms on this PointArray"""
+        import geoarrow.geo
+
+        return geoarrow.geo.PointArray.from_pyarrow(self.arr)
+
+    @property
+    def geos(self) -> geoarrow.geos.PointArray:
+        """Access GEOS algorithms on this PointArray"""
+        import geoarrow.geos
+
+        return geoarrow.geos.PointArray.from_pyarrow(self.arr)
+
+    @property
+    def proj(self) -> geoarrow.proj.PointArray:
+        """Access Proj algorithms on this PointArray"""
+        import geoarrow.proj
+
+        return geoarrow.proj.PointArray.from_pyarrow(self.arr)
+
+
+def validate_point_array(arr: pa.Array):
+    """Validate that this pyarrow Array is a valid GeoArrow Point array
+    """
+    pass

pyproject.toml

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+[tool.poetry]
+name = "geoarrow.core"
+version = "0.1"
+description = "Core classes for GeoArrow in Python"
+authors = []
+readme = "README.md"
+packages = [
+  { include = "core", from = "geoarrow" }
+]
+
+[tool.poetry.dependencies]
+python = "^3.8"
+pyarrow = "^12.0.1"
+
+[tool.poetry.dev-dependencies]
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"