updates to github actions.

.github/workflows/gh_docs.yml

@@ -9,9 +9,9 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: 3.8
       - name: Install doc deps
@@ -24,7 +24,7 @@ jobs:
         run: |
           make -C docs clean
       - name: Cache/Restore the AS 209 measurement set
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         env:
           cache-name: cache-AS209
         with:

.github/workflows/test-casa.yml

@@ -1,4 +1,4 @@
-name: package test and docs test
+name: test and docs with casa
 
 on: [push, pull_request]
 
@@ -8,25 +8,21 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.8]
+        python-version: [3.8, 3.10]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
 
     - name: Install dependencies
       run: |
         pip install --upgrade pip
         
-    - name: Install vanilla package
-      run: |
-        pip install .
-    
     - name: Install test deps 
       run: |
-        pip install .[test]
+        pip install .[test,casa]
     
     - name: Test with pytest
       run: | 

.github/workflows/test.yml

@@ -0,0 +1,38 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
+
+name: test w/o casatools
+
+on: 
+    - push
+    - pull_request
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Test with pytest
+      run: |
+        pytest