MAINT: drop Python 3.8 support (#473)

.github/workflows/docker-gdal.yml

@@ -25,8 +25,8 @@ jobs:
  - "ghcr.io/osgeo/gdal:ubuntu-small-3.8.5" # python 3.10.12
  - "ghcr.io/osgeo/gdal:ubuntu-small-3.7.3" # python 3.10.12
  - "ghcr.io/osgeo/gdal:ubuntu-small-3.6.4" # python 3.10.6
- - "osgeo/gdal:ubuntu-small-3.5.3" # python 3.8.10
- - "osgeo/gdal:ubuntu-small-3.4.3" # python 3.8.10
+ - "osgeo/gdal:ubuntu-small-3.5.3" # python 3.9.20 (installed manually)
+ - "osgeo/gdal:ubuntu-small-3.4.3" # python 3.9.20 (installed manually)
 
  container:
  image: ${{ matrix.container }}
@@ -36,6 +36,15 @@ jobs:
  run: |
  apt-get update && apt-get install -y build-essential git python3-dev
 
+ - name: Install Python 
+ # the GDAL 3.4 and 3.5 images do have Python 3.8 installed, so have to
+ # install a more recent Python version manually 
+ if: matrix.container == 'osgeo/gdal:ubuntu-small-3.5.3' || matrix.container == 'osgeo/gdal:ubuntu-small-3.4.3'
+ run: |
+ apt-get update && apt-get install -y software-properties-common
+ add-apt-repository -y ppa:deadsnakes/ppa
+ apt-get update && apt-get install -y python3.9-dev
+
  - uses: actions/checkout@v4
 
  - name: Create virtual environment

.github/workflows/release.yml

@@ -247,7 +247,7 @@ jobs:
  "macos-12",
  "macos-latest",
  ]
- python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+ python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
  include:
  - os: "ubuntu-latest"
  artifact: pyogrio-wheel-linux-manylinux2014_x86_64

CHANGES.md

@@ -18,6 +18,8 @@
  This also leads to `pyproj` becoming an optional dependency; you will need
  to install `pyproj` in order to support spatial reference systems (#452).
 - The GDAL library included in the wheels is updated from 3.8.5 to GDAL 3.9.2 (#466).
+- pyogrio now requires a minimum version of Python >= 3.9 (#473).
+- Wheels are now available for Python 3.13.
 
 ## 0.9.0 (2024-06-17)
 

README.md

@@ -32,7 +32,7 @@ substantial change. Please see [CHANGES](CHANGES.md).
 
 ## Requirements
 
-Supports Python 3.8 - 3.11 and GDAL 3.4.x - 3.8.x.
+Supports Python 3.9 - 3.13 and GDAL 3.4.x - 3.9.x.
 
 Reading to GeoDataFrames requires `geopandas>=0.12` with `shapely>=2`.
 

docs/source/install.md

@@ -2,7 +2,7 @@
 
 ## Requirements
 
-Supports Python 3.8 - 3.11 and GDAL 3.4.x - 3.8.x
+Supports Python 3.9 - 3.13 and GDAL 3.4.x - 3.9.x
 
 Reading to GeoDataFrames requires `geopandas>=0.12` with `shapely>=2`.
 

pyogrio/_env.py

@@ -7,7 +7,6 @@
 import logging
 import os
 import platform
-import sys
 from contextlib import contextmanager
 from pathlib import Path
 
@@ -28,7 +27,7 @@
 
 gdal_dll_dir = None
 
-if platform.system() == "Windows" and sys.version_info >= (3, 8):
+if platform.system() == "Windows":
  # if loading of extension modules fails, search for gdal dll directory
  try:
  import pyogrio._io # noqa: F401

pyproject.toml

@@ -27,7 +27,7 @@ classifiers = [
  "Programming Language :: Python :: 3",
  "Topic :: Scientific/Engineering :: GIS",
 ]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 dependencies = ["certifi", "numpy", "packaging"]
 
 [project.optional-dependencies]

setup.py

@@ -20,12 +20,12 @@
 logger = logging.getLogger(__name__)
 
 
-MIN_PYTHON_VERSION = (3, 8, 0)
+MIN_PYTHON_VERSION = (3, 9, 0)
 MIN_GDAL_VERSION = (2, 4, 0)
 
 
 if sys.version_info < MIN_PYTHON_VERSION:
- raise RuntimeError("Python >= 3.8 is required")
+ raise RuntimeError("Python >= 3.9 is required")
 
 
 def copy_data_tree(datadir, destdir):