update references to Python 3.9

.github/workflows/ci.yml

@@ -28,8 +28,7 @@ jobs:
     uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@v1
     with:
       envs: |
-        - linux: py39-oldestdeps-cov-xdist
-        - linux: py39-xdist
+        - linux: py310-oldestdeps-cov-xdist
         - linux: py310-xdist
         - linux: py311-xdist
         - linux: py312-cov-xdist

.github/workflows/ci_cron.yml

@@ -16,5 +16,5 @@ jobs:
     uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@v1
     with:
       envs: |
-        - macos: py39-xdist
         - macos: py310-xdist
+        - macos: py311-xdist

.github/workflows/tests_devdeps.yml

@@ -24,9 +24,9 @@ jobs:
     uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@v1
     with:
       envs: |
-        - linux: py39-devdeps-xdist
         - linux: py310-devdeps-xdist
         - linux: py311-devdeps-xdist
+        - linux: py312-devdeps-xdist
         - linux: py3-devdeps-xdist
   test_downstream:
     if: (github.repository == 'spacetelescope/stcal' && (github.event_name == 'schedule' || github.event_name == 'push' || github.event_name == 'workflow_dispatch' || contains(github.event.pull_request.labels.*.name, 'run devdeps tests')))

README.md

@@ -10,13 +10,14 @@ STScI Calibration algorithms and tools.
 
 ![STScI Logo](docs/_static/stsci_logo.png)
 
-**STCAL requires Python 3.9 or above and a C compiler for dependencies.**
+> [!IMPORTANT]
+> STCAL requires Python 3.10 or above and a C compiler for dependencies.
 
-**Linux and MacOS platforms are tested and supported. Windows is not currently supported.**
+> [!IMPORTANT]
+> Linux and MacOS platforms are tested and supported. Windows is not currently supported.**
 
-**If installing on MacOS Mojave 10.14, you must install
-into an environment with python 3.9. Installation will fail on python 3.10 due
-to lack of a stable build for dependency `opencv-python`.**
+> [!WARNING]
+> Installation on MacOS Mojave 10.14 will fail due to lack of a stable build for dependency ``opencv-python``.
 
 `STCAL` is intended to be used as a support package for calibration pipeline
 software, such as the `JWST` and `Roman` calibration pipelines. `STCAL` is a