Remove astropy test runner and other updates

.github/workflows/ci_workflows.yml

@@ -42,11 +42,11 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38  # v5.4.0
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: Install and build
       run: python -m pip install tox --upgrade
     - name: Run tests
-      run: tox -e py310-test
+      run: tox -e py311-test
 
   devtests:
     runs-on: ubuntu-latest
@@ -56,8 +56,8 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38  # v5.4.0
       with:
-        python-version: '3.11'
+        python-version: '3.13'
     - name: Install and build
       run: python -m pip install tox --upgrade
     - name: Run tests
-      run: tox -e py311-test-devdeps
+      run: tox -e py313-test-devdeps

astrowidgets/__init__.py

@@ -1,9 +1,7 @@
 # Licensed under a 3-clause BSD style license - see LICENSE.rst
-
-# Packages may add whatever they like to this file, but
-# should keep this content at the top.
-# ----------------------------------------------------------------------------
-from ._astropy_init import *  # noqa
-# ----------------------------------------------------------------------------
+try:
+    from .version import version as __version__
+except ImportError:
+    __version__ = ''
 
 from .ginga import *  # noqa

setup.cfg

@@ -56,8 +56,6 @@ docs =
 [coverage:run]
 source = astrowidgets
 omit =
-    astrowidgets/_astropy_init*
-    astrowidgets/conftest*
     astrowidgets/cython_version*
     astrowidgets/setup_package*
     astrowidgets/*/setup_package*
@@ -66,8 +64,6 @@ omit =
     astrowidgets/*/tests/*
     astrowidgets/*/*/tests/*
     astrowidgets/version*
-    */astrowidgets/_astropy_init*
-    */astrowidgets/conftest*
     */astrowidgets/cython_version*
     */astrowidgets/setup_package*
     */astrowidgets/*/setup_package*

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-  py{38,39,310,311}-test{,-devdeps,-predeps}
+  py{310,311,312,313}-test{,-devdeps,-predeps}
 requires =
   setuptools >= 30.3.0
   pip >= 19.3.1
@@ -9,14 +9,15 @@ requires =
 setenv =
   MPLBACKEND=agg
   JUPYTER_PLATFORM_DIRS=1
+  devdeps: PIP_EXTRA_INDEX_URL = https://pypi.anaconda.org/astropy/simple
 
 extras = test
 
 changedir =
   test: .tmp/{envname}
 
 deps =
-  devdeps: git+https://github.com/astropy/astropy.git#egg=astropy
+  devdeps: astropy>=0.0.dev0
   devdeps: git+https://github.com/ejeschke/ginga.git#egg=ginga
 
 commands =