From cc753d2f8e1935d90cf0a3ad244e8033dcf866cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20H=C3=B8xbro=20Hansen?= <simon.hansen@me.com>
Date: Tue, 28 Jan 2025 16:55:43 +0100
Subject: [PATCH] enh!: Drop Python 3.9 (#1399)

---
 .github/workflows/test.yaml |  4 ++--
 README.md                   |  2 +-
 pixi.toml                   | 17 ++++++-----------
 pyproject.toml              |  2 +-
 4 files changed, 10 insertions(+), 15 deletions(-)

diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index b5c940531..eebd12fec 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -80,7 +80,7 @@ jobs:
         run: |
           MATRIX=$(jq -nsc '{
               "os": ["ubuntu-latest", "macos-latest", "windows-latest"],
-              "environment": ["test-39", "test-312"]
+              "environment": ["test-310", "test-312"]
           }')
           echo "MATRIX=$MATRIX" >> $GITHUB_ENV
       - name: Set test matrix with 'full' option
@@ -88,7 +88,7 @@ jobs:
         run: |
           MATRIX=$(jq -nsc '{
               "os": ["ubuntu-latest", "macos-latest", "windows-latest"],
-              "environment": ["test-39", "test-310", "test-311", "test-312"]
+              "environment": ["test-310", "test-311", "test-312"]
           }')
           echo "MATRIX=$MATRIX" >> $GITHUB_ENV
       - name: Set test matrix with 'downstream' option
diff --git a/README.md b/README.md
index 3353b117c..9ed274bb2 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,7 @@ to work with much larger datasets than it would otherwise.
 
 ## Installation
 
-Datashader supports Python 3.9, 3.10, 3.11, 3.12, and 3.13 on Linux, Windows, or
+Datashader supports Python 3.10, 3.11, 3.12, and 3.13 on Linux, Windows, or
 Mac and can be installed with conda:
 
     conda install datashader
diff --git a/pixi.toml b/pixi.toml
index d96cd36ea..feee1ca4e 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -11,7 +11,6 @@ install = "python -m pip install --no-deps --disable-pip-version-check -e ."
 PYTHONIOENCODING = "utf-8"
 
 [environments]
-test-39 = ["py39", "test-core", "test", "example", "test-example", "test-unit-task"]
 test-310 = ["py310", "test-core", "test", "example", "test-example", "test-unit-task"]
 test-311 = ["py311", "test-core", "test", "example", "test-example", "test-unit-task"]
 test-312 = ["py312", "test-core", "test", "example", "test-example", "test-unit-task"]
@@ -23,7 +22,7 @@ lint = ["py311", "lint"]
 
 [dependencies]
 python = "<3.13"
-numba = "*" # At top as this dictates Python version
+numba = "*"
 colorcet = "*"
 multipledispatch = "*"
 numpy = "*"
@@ -37,26 +36,21 @@ setuptools = "*" # distutils for pyct
 toolz = "*"
 xarray = "*"
 
-[feature.py39.dependencies]
-python = "3.9.*"
-
 [feature.py310.dependencies]
 python = "3.10.*"
-bokeh_sampledata = "*"
 
 [feature.py311.dependencies]
 python = "3.11.*"
-bokeh_sampledata = "*"
 
 [feature.py312.dependencies]
 python = "3.12.*"
-bokeh_sampledata = "*"
 
 [feature.py312.activation.env]
 COVERAGE_CORE = "sysmon"
 
 [feature.example.dependencies]
 bokeh = ">3.1"
+bokeh_sampledata = "*"
 dask-core = "*"
 dask-geopandas = "*"
 fastparquet = "*"
@@ -68,11 +62,11 @@ matplotlib-base = ">=3.3"
 networkx = "*"
 panel = ">1.1"
 pillow = "*"
-pyogrio =  "*"
+pyogrio = "*"
 pyproj = "*"
 python-graphviz = "*"
 python-snappy = "*"
-rasterio = "!=1.4.0" # 2024-11: Errors and will not solve to latest on Linux + Python 3.9
+rasterio = "*"
 scikit-image = "*"
 shapely = ">=2.0.0"
 spatialpandas = "*"
@@ -95,6 +89,7 @@ test-unit-nojit = { cmd = 'pytest datashader -k "not test_tiles" -n logical --di
 test-benchmark = 'pytest datashader/tests --benchmark'
 
 [feature.test.dependencies]
+bokeh_sampledata = "*"
 dask-core = "*"
 dask-expr = "<2"
 dask-geopandas = "*"
@@ -104,7 +99,7 @@ netcdf4 = "*"
 pyarrow = "*"
 pillow = "*"
 pyogrio = "*"
-rasterio = "!=1.4.0" # 2024-11: Errors and will not solve to latest on Linux + Python 3.9
+rasterio = "*"
 rioxarray = "*"
 scikit-image = "*"
 shapely = ">=2.0.0"
diff --git a/pyproject.toml b/pyproject.toml
index a77ede1d3..65375f29d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,6 @@ classifiers = [
     "License :: OSI Approved :: BSD License",
     "Development Status :: 5 - Production/Stable",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -86,6 +85,7 @@ select = [
     "W",
 ]
 ignore = [
+    "UP038", # isinstance and issubclass uses a |-separated union
     # The following should be enabled in the future
     "UP030",  # format-literals
     "UP031",  # printf-string-formatting