Fix CI to use latest package versions

.github/workflows/CI.yml

@@ -19,7 +19,7 @@ jobs:
           # Disabling Windows tests as it's known to not work:
           # https://github.com/SciML/diffeqpy/pull/86#issuecomment-1011675735
           # - windows-latest
-        python-version: ['3.8', '3.13']
+        python-version: ['3.10', '3.13']
       fail-fast: false
     name: Test ${{ matrix.os }} ${{ matrix.architecture }}
       Python ${{ matrix.python-version }}
@@ -30,14 +30,14 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
           architecture: ${{ matrix.architecture }}
+      - name: Setup Julia
+        uses: julia-actions/setup-julia@v2
+        with:
+          version: '1'
       - name: Install tox
         run: |
           python -m pip install --upgrade pip
           python -m pip install --upgrade tox
-      - name: Install Julia using jill
-        run: |
-          python -m pip install --upgrade jill
-          python -c "from jill.install import install_julia; install_julia(confirm=True)"
       - name: Run test
         run: python -m tox -- --cov=diffeqpy -s
         env:
@@ -47,3 +47,4 @@ jobs:
         with:
           file: ./coverage.xml
           name: codecov-umbrella
+

setup.py

@@ -12,8 +12,6 @@ def readme():
       classifiers=[
         'Development Status :: 4 - Beta',
         'License :: OSI Approved :: MIT License',
-        'Programming Language :: Python :: 3.8',
-        'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',
@@ -28,6 +26,7 @@ def readme():
       author_email='[email protected]',
       license='MIT',
       packages=['diffeqpy','diffeqpy.tests'],
-      install_requires=['juliacall>=0.9.14', 'jill'],
+      python_requires='>=3.10',
+      install_requires=['juliacall>=0.9.28', 'jill'],
       include_package_data=True,
       zip_safe=False)

tox.ini

@@ -2,6 +2,7 @@
 deps =
     pytest
     pytest-cov
+install_command = pip install --upgrade {opts} {packages}
 commands =
     python -c 'import diffeqpy; diffeqpy.install()'
     py.test \