Use only available Python versions

Not all Python versions are available on every OS.
Update to use another Python version or a different OS.

Author: Flamefire

.github/workflows/eb_command.yml

@@ -11,11 +11,15 @@ concurrency:
 
 jobs:
   test-eb:
-    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        python: [3.6, 3.7, 3.8, 3.9, '3.10', '3.11']
+        python: [3.8, 3.9, '3.10', '3.11', '3.12', '3.13']
+        os: [ubuntu-24.04]
+        include:
+          - python: 3.7
+            os: ubuntu-22.04
       fail-fast: false
+    runs-on: ${{matrix.os}}
     steps:
     - uses: actions/checkout@v4
 

.github/workflows/linting.yml

@@ -10,10 +10,15 @@ concurrency:
 
 jobs:
   python-linting:
-    runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9, '3.10', '3.11']
+        python: [3.8, 3.9, '3.10', '3.11', '3.12', '3.13']
+        os: [ubuntu-24.04]
+        include:
+          - python: 3.7
+            os: ubuntu-22.04
+      fail-fast: false
+    runs-on: ${{matrix.os}}
 
     steps:
     - uses: actions/checkout@v4

.github/workflows/unit_tests.yml

@@ -22,10 +22,11 @@ jobs:
       - run: "true"
   build:
     needs: setup
-    runs-on: ubuntu-24.04
+    runs-on: ${{matrix.os}}
     strategy:
       matrix:
-        python: [3.6]
+        os: [ubuntu-22.04]
+        python: [3.7]
         modules_tool:
           # use variables defined by 'setup' job above, see also
           # https://docs.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions#needs-context
@@ -37,21 +38,18 @@ jobs:
         lc_all: [""]
         include:
           # Test different Python 3 versions with Lmod 8.x
-          - python: 3.7
-            modules_tool: ${{needs.setup.outputs.lmod8}}
           - python: 3.8
             modules_tool: ${{needs.setup.outputs.lmod8}}
+            os: ubuntu-24.04
           - python: 3.9
             modules_tool: ${{needs.setup.outputs.lmod8}}
+            os: ubuntu-24.04
           - python: '3.10'
             modules_tool: ${{needs.setup.outputs.lmod8}}
+            os: ubuntu-24.04
           - python: '3.11'
             modules_tool: ${{needs.setup.outputs.lmod8}}
-          # There may be encoding errors in Python 3 which are hidden when an UTF-8 encoding is set
-          # Hence run the tests (again) with LC_ALL=C and Python 3.6 (or any < 3.7)
-          - python: 3.6
-            modules_tool: ${{needs.setup.outputs.lmod8}}
-            lc_all: C
+            os: ubuntu-24.04
       fail-fast: false
     steps:
     - uses: actions/checkout@v4
@@ -101,9 +99,9 @@ jobs:
         # and are only run after the PR gets merged
         GITHUB_TOKEN: ${{secrets.CI_UNIT_TESTS_GITHUB_TOKEN}}
       run: |
-        # only install GitHub token when testing with Lmod 8.x + Python 3.6 or 3.9, to avoid hitting GitHub rate limit
+        # only install GitHub token when testing with Lmod 8.x + Python 3.7 or 3.9, to avoid hitting GitHub rate limit
         # tests that require a GitHub token are skipped automatically when no GitHub token is available
-        if [[ "${{matrix.modules_tool}}" =~ 'Lmod-8' ]] && [[ "${{matrix.python}}" =~ 3.[69] ]]; then
+        if [[ "${{matrix.modules_tool}}" =~ 'Lmod-8' ]] && [[ "${{matrix.python}}" =~ 3.[79] ]]; then
           if [ ! -z $GITHUB_TOKEN ]; then
             SET_KEYRING="import keyrings.alt.file; keyring.set_keyring(keyrings.alt.file.PlaintextKeyring())"
             python -c "import keyring; $SET_KEYRING; keyring.set_password('github_token', 'easybuild_test', '$GITHUB_TOKEN')"