Fix devdeps and clean up matrix

and stuff

.github/workflows/ci_workflows.yml

@@ -32,15 +32,15 @@ jobs:
             toxargs: -v
             toxposargs: --remote-data=astropy
 
-          - name: Python 3.11 (Windows)
+          - name: Python 3.12 (Windows)
             os: windows-latest
-            python: 3.11
-            toxenv: py311-test
+            python: '3.12'
+            toxenv: py312-test
 
-          - name: Python 3.11 (MacOS X)
+          - name: Python 3.12 (MacOS X)
             os: macos-latest
-            python: 3.11
-            toxenv: py311-test
+            python: '3.12'
+            toxenv: py312-test
 
           - name: Python 3.10
             os: ubuntu-latest
@@ -59,20 +59,15 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python }}
-    - name: Install language-pack-de and tzdata
-      if: startsWith(matrix.os, 'ubuntu')
-      run: |
-          sudo apt-get update
-          sudo apt-get install language-pack-de tzdata graphviz
     - name: Install Python dependencies
-      run: python -m pip install --upgrade tox codecov
+      run: python -m pip install --upgrade tox
     - name: Run tests
       run: tox ${{ matrix.toxargs }} -e ${{ matrix.toxenv }} -- ${{ matrix.toxposargs }}
     # TODO: Do we need --gcov-glob "*cextern*" ?
@@ -91,25 +86,20 @@ jobs:
         include:
           - name: (Allowed Failure) Python 3.12 with remote data and dev version of key dependencies
             os: ubuntu-latest
-            python: '3.12-dev'
+            python: '3.12'
             toxenv: py312-test-devdeps
             toxposargs: --remote-data=any
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python }}
-    - name: Install language-pack-de and tzdata
-      if: startsWith(matrix.os, 'ubuntu')
-      run: |
-          sudo apt-get update
-          sudo apt-get install language-pack-de tzdata
     - name: Install Python dependencies
-      run: python -m pip install --upgrade tox codecov
+      run: python -m pip install --upgrade tox
     - name: Run tests
       run: tox ${{ matrix.toxargs }} -e ${{ matrix.toxenv }} -- ${{ matrix.toxposargs }}

pyproject.toml

@@ -1,7 +1,4 @@
 [build-system]
-
 requires = ["setuptools",
-            "setuptools_scm",
-            "wheel"]
-
+            "setuptools_scm"]
 build-backend = 'setuptools.build_meta'

setup.cfg

@@ -15,7 +15,6 @@ github_project = astropy/specutils
 zip_safe = False
 packages = find:
 python_requires = >=3.8
-setup_requires = setuptools_scm
 install_requires =
     numpy>=1.19
     scipy>=1.3
@@ -28,11 +27,7 @@ install_requires =
 [options.extras_require]
 test =
     pytest-astropy
-    pytest-cov
-    tox
     matplotlib
-    graphviz
-    coverage
     spectral-cube
 jwst =
     stdatamodels>=1.1.0

tox.ini

@@ -3,16 +3,13 @@ envlist =
     py{38,39,310,311,312}-test{,-devdeps,-oldestdeps,-predeps}{,-cov,-external}
     linkcheck
     codestyle
-requires =
-    setuptools >= 30.3.0
-    pip >= 19.3.1
 isolated_build = true
 
 [testenv]
 # Suppress display of matplotlib plots generated during docs build
 setenv =
     MPLBACKEND=agg
-    devdeps: PIP_EXTRA_INDEX_URL = https://pypi.anaconda.org/astropy/simple https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
+    devdeps: PIP_EXTRA_INDEX_URL = https://pypi.anaconda.org/astropy/simple https://pypi.anaconda.org/liberfa/simple https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
 
 # Pass through the following environment variables which may be needed for the CI
 passenv = HOME,WINDIR,LC_ALL,LC_CTYPE,CC,CI
@@ -38,6 +35,7 @@ description =
 
 # The following provides some specific pinnings for key packages
 deps =
+    cov: pytest-cov
 
     oldestdeps: numpy==1.19.*
     oldestdeps: scipy==1.3.*
@@ -55,6 +53,7 @@ deps =
     devdeps: numpy>=0.0.dev0
     devdeps: scipy>=0.0.dev0
     devdeps: matplotlib>=0.0.dev0
+    devdeps: pyerfa>=0.0.dev0
     devdeps: astropy>=0.0.dev0
     devdeps: git+https://github.com/spacetelescope/gwcs.git
     devdeps: git+https://github.com/asdf-format/asdf.git