ci: bump Python to 3.10-3.12, drop 3.8/3.9 (#564)

.github/workflows/ci.yml

@@ -23,14 +23,14 @@ jobs:
         && !contains(github.event.head_commit.message, '[skip tests]')
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.10", "3.11", "3.12"]
       fail-fast: false
-    runs-on: ubuntu-22.04 
+    runs-on: ubuntu-24.04
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -41,25 +41,25 @@ jobs:
     - name: Lint
       run: |
         flake8 -v
-    - uses: hidakatsuya/action-setup-diff-pdf@v1.3.0
-      if: "matrix.python-version == '3.11'"
+    - uses: hidakatsuya/action-setup-diff-pdf@v1.4.0
+      if: "matrix.python-version == '3.12'"
       with:
         diff-pdf-version: '0.5'
     - uses: actions/cache@v3
       name: Tectonic Cache
-      if: "matrix.python-version == '3.11'"
+      if: "matrix.python-version == '3.12'"
       with:
         path: ~/.cache/Tectonic
         key: ${{ runner.os }}-tectonic-${{ hashFiles('**/*.tex') }}
         restore-keys: |
           ${{ runner.os }}-tectonic-
     - uses: wtfjoke/setup-tectonic@v2
-      if: "matrix.python-version == '3.11'"
+      if: "matrix.python-version == '3.12'"
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}
         biber-version: "latest"
     - name: Set environment variables
-      if: "matrix.python-version == '3.11'"
+      if: "matrix.python-version == '3.12'"
       run: |
         echo "TEST_GXPDF=1" >> "$GITHUB_ENV"
     - name: Test
@@ -79,12 +79,12 @@ jobs:
           --nbval-sanitize-with test/.nbval_sanitize.cfg \
           "${PYTEST_ARGS[@]}"
     - name: Upload coverage to Codecov
-      if: "matrix.python-version == '3.11'"
+      if: "matrix.python-version == '3.12'"
       uses: codecov/codecov-action@v3
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
     - uses: actions/upload-artifact@v4
-      if: "matrix.python-version == '3.11' && failure()"
+      if: "matrix.python-version == '3.12' && failure()"
       with:
         name: PDF-diffs
         path: test/diff
@@ -106,11 +106,11 @@ jobs:
       url: https://pypi.org/p/galgebra
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
-          python-version: "3.11"
+          python-version: "3.12"
       - name: Install wheel
         run: |
           python -m pip install wheel packaging

examples/primer/cm3.ipynb

@@ -89,7 +89,7 @@
     "\n",
     "cm3coords = (o,x,y,z,infty) = symbols('o 1 2 3 infty', real=True)\n",
     "cm3g = '0 0 0 0 -1, 0 1 0 0 0, 0 0 1 0 0, 0 0 0 1 0, -1 0 0 0 0'\n",
-    "cm3 = Ga('o \\mathbf{e}_1 \\mathbf{e}_2 \\mathbf{e}_3 \\infty', g = cm3g,  coords = cm3coords)\n",
+    "cm3 = Ga(r'o \\mathbf{e}_1 \\mathbf{e}_2 \\mathbf{e}_3 \\infty', g = cm3g,  coords = cm3coords)\n",
     "(eo, e1, e2, e3, eoo) = cm3.mv()\n",
     "ep = eo - eoo/2  # ep^2 = +1  Geometric Algebra for Computer Science 408\n",
     "em = eo + eoo/2  # em^2 = -1\n",

examples/primer/gprint.ipynb

@@ -78,7 +78,7 @@
    "source": [
     "# Set up standard G^3 geometric algebra\n",
     "g3coords = (x,y,z) = symbols('x y z', real=True) # Without real=True, symbols are complex\n",
-    "g3 = Ga('\\mathbf{e}', g=[1,1,1], coords=g3coords)\n",
+    "g3 = Ga(r'\\mathbf{e}', g=[1,1,1], coords=g3coords)\n",
     "(ex, ey, ez) = g3.mv()     # Program names of basis vectors.\n",
     "(exr, eyr, ezr) = g3.mvr() # Program names of reciprocal basis vectors."
    ]

examples/primer/h3.ipynb

@@ -71,7 +71,7 @@
    "source": [
     "h3coords = (x,y,z,e) = symbols('x y z e', real=True)\n",
     "# h3 = Ga('e_x e_y e_z e_e', g=[1,1,1,1], coords=h3coords)\n",
-    "h3 = Ga('\\mathbf{e}', g=[1,1,1,1], coords=h3coords)\n",
+    "h3 = Ga(r'\\mathbf{e}', g=[1,1,1,1], coords=h3coords)\n",
     "(ex,ey,ez,ee) = h3.mv()"
    ]
   },

examples/primer/primer.ipynb

@@ -321,7 +321,7 @@
     }
    ],
    "source": [
-    "gprint('\\grad = ', grad)"
+    "gprint(r'\\grad = ', grad)"
    ]
   },
   {

examples/primer/sp2g3.ipynb

@@ -69,7 +69,7 @@
     "\n",
     "# g3: Base manifold.\n",
     "g3coords = (x,y,z) = symbols('x y z', real=True) \n",
-    "g3 = Ga('\\mathbf{e}', g=[1,1,1], coords=g3coords)\n",
+    "g3 = Ga(r'\\mathbf{e}', g=[1,1,1], coords=g3coords)\n",
     "(ex, ey, ez) = g3.mv()\n",
     "\n",
     "# sp2: Submanifold\n",

examples/primer/spacetime.ipynb

@@ -67,7 +67,7 @@
    "source": [
     "txyz = (t, x, y, z) = symbols('t x y z', real=True)\n",
     "stcoords = (t,x,y,z) = symbols('t x y z')\n",
-    "st = Ga('\\mathbf{e}', g=[1, -1, -1, -1], coords=stcoords)\n",
+    "st = Ga(r'\\mathbf{e}', g=[1, -1, -1, -1], coords=stcoords)\n",
     "(et, ex, ey, ez) = st.mv()"
    ]
   },

setup.py

@@ -23,7 +23,7 @@
     package_dir={'galgebra': 'galgebra'},
     # Sympy 1.4 is needed for printing tests to pass, but 1.3 will still work
     install_requires=['sympy'],
-    python_requires='>=3.6',
+    python_requires='>=3.10',
     long_description=long_description,
     long_description_content_type='text/markdown',
     classifiers=[
@@ -33,10 +33,9 @@
         'License :: OSI Approved :: BSD License',
         'Natural Language :: English',
         'Operating System :: OS Independent',
-        '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',
         'Topic :: Scientific/Engineering :: Mathematics',
         'Topic :: Scientific/Engineering :: Physics',
     ],

test/test_mv.py

@@ -1,4 +1,4 @@
-import distutils.version
+from packaging.version import Version
 
 import pytest
 import sympy
@@ -204,7 +204,7 @@ def test_arithmetic(self):
         lambda ga: 1,
         lambda ga: ga.mv(sympy.S.One),
         pytest.param(lambda ga: sympy.S.One, marks=pytest.mark.skipif(
-            distutils.version.LooseVersion(sympy.__version__) < "1.6",
+            Version(sympy.__version__) < Version("1.6"),
             # until sympy/sympy@bec42df53cf2486d485065ddad1c31011a48bf3b
             reason="Cannot override < and > on sympy.Expr"
         ))