From f7087dae2b813da56edfdcf2ae3aae78391ad01f Mon Sep 17 00:00:00 2001
From: Zach Burnett <zburnett@stsci.edu>
Date: Fri, 14 Apr 2023 11:49:55 -0400
Subject: [PATCH 1/5] drop support for Python 3.8

---
 .readthedocs.yaml | 6 +++++-
 pyproject.toml    | 2 +-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 373eaa4a..a3e380c0 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -7,9 +7,13 @@ sphinx:
   configuration: docs/conf.py
   fail_on_warning: true
 
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
 # Set the version of Python and requirements required to build your docs
 python:
-  version: 3.8
   install:
     - method: pip
       path: .
diff --git a/pyproject.toml b/pyproject.toml
index 3e02d7f9..2296e959 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "gwcs"
 description = "Generalized World Coordinate System"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 authors = [
     { name = "gwcs developers", email = "help@stsci.edu" },
 ]

From 27660e67148fcfabf496055e5dd814b770ff1a6e Mon Sep 17 00:00:00 2001
From: Zach Burnett <zburnett@stsci.edu>
Date: Fri, 14 Apr 2023 13:35:37 -0400
Subject: [PATCH 2/5] use Mamba and install graphviz

---
 .readthedocs.yaml         | 6 +++++-
 docs/rtd_environment.yaml | 8 ++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 docs/rtd_environment.yaml

diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index a3e380c0..2ec342f8 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -10,10 +10,14 @@ sphinx:
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.11"
+    python: mambaforge-4.10
+
+conda:
+  environment: docs/rtd_environment.yaml
 
 # Set the version of Python and requirements required to build your docs
 python:
+  system_packages: false
   install:
     - method: pip
       path: .
diff --git a/docs/rtd_environment.yaml b/docs/rtd_environment.yaml
new file mode 100644
index 00000000..f0fee16e
--- /dev/null
+++ b/docs/rtd_environment.yaml
@@ -0,0 +1,8 @@
+name: rtd311
+channels:
+ - conda-forge
+ - defaults
+dependencies:
+ - python=3.11
+ - pip
+ - graphviz

From 726b952d2464224f4f72b0fdd5f20ec16adaf710 Mon Sep 17 00:00:00 2001
From: Zach Burnett <zburnett@stsci.edu>
Date: Thu, 4 May 2023 13:42:24 -0400
Subject: [PATCH 3/5] fix import error

---
 docs/conf.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index 84259845..73f5592b 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -29,7 +29,11 @@
 from datetime import datetime
 from pathlib import Path
 
-import tomli
+try:
+    import tomllib
+except ImportError:
+    import tomli as tomllib
+    
 from pkg_resources import get_distribution
 
 try:
@@ -69,7 +73,7 @@
 
 # This does not *have* to match the package name, but typically does
 with open(Path(__file__).parent.parent / "pyproject.toml", "rb") as metadata_file:
-    configuration = tomli.load(metadata_file)
+    configuration = tomllib.load(metadata_file)
     metadata = configuration['project']
 project = metadata['name']
 author = metadata["authors"][0]["name"]

From 0baac3ef824c785708de954ff472e3b19851dbce Mon Sep 17 00:00:00 2001
From: Zach Burnett <zburnett@stsci.edu>
Date: Thu, 4 May 2023 13:43:01 -0400
Subject: [PATCH 4/5] remove uppser pin on Scipy

---
 pyproject.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index 2296e959..7873249a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ dependencies = [
     "asdf >= 2.8.1",
     "astropy >= 5.1",
     "numpy",
-    "scipy < 1.10.0",
+    "scipy",
     "asdf_wcs_schemas",
     "asdf-astropy >= 0.2.0",
 ]

From 4f862210c3475835ee19bfdcf5ff4031eaebcd15 Mon Sep 17 00:00:00 2001
From: Zach Burnett <zburnett@stsci.edu>
Date: Thu, 4 May 2023 13:45:19 -0400
Subject: [PATCH 5/5] remove 3.8 toxenvs

---
 .github/workflows/ci.yml | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b9e73bc2..b43e08c8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -40,7 +40,7 @@ jobs:
       fail-fast: false
       matrix:
         toxenv: [ test ]
-        python-version: [ '3.8', '3.9', '3.10', '3.11' ]
+        python-version: [ '3.9', '3.10', '3.11' ]
         os: [ ubuntu-latest, macos-latest ]
         include:
           - toxenv: test-dev
@@ -67,15 +67,6 @@ jobs:
           - toxenv: test-numpy120
             os: ubuntu-latest
             python-version: '3.9'
-          - toxenv: test-numpy122
-            os: ubuntu-latest
-            python-version: '3.8'
-          - toxenv: test-numpy121
-            os: ubuntu-latest
-            python-version: '3.8'
-          - toxenv: test-numpy120
-            os: ubuntu-latest
-            python-version: '3.8'
           - toxenv: test-jwst-xdist
             os: ubuntu-latest
             python-version: '3.x'