Migrate from setup.cfg to pyproject.toml

.flake8

@@ -0,0 +1,24 @@
+[flake8]
+select = C,E,F,W
+ignore = E203,E231,E501,E741,W503,W504,C901
+max-line-length = 88
+per-file-ignores =
+    **/__init__.py:F401,E402,F403
+    aesara/tensor/linalg.py:F401,F403
+    aesara/scalar/basic_scipy.py:E402,F403,F401
+    aesara/graph/toolbox.py:E402,F403,F401
+    aesara/link/jax/jax_dispatch.py:E402,F403,F401
+    aesara/link/jax/jax_linker.py:E402,F403,F401
+    aesara/sparse/sandbox/sp2.py:F401
+    tests/tensor/test_math_scipy.py:E402
+    tests/sparse/test_basic.py:E402
+    tests/sparse/test_opt.py:E402
+    tests/sparse/test_sp2.py:E402
+    tests/sparse/test_utils.py:E402,F401
+    tests/sparse/sandbox/test_sp.py:E402,F401
+    tests/scalar/test_basic_sympy.py:E402
+    aesara/graph/rewriting/unify.py:F811
+exclude =
+    versioneer.py
+    doc/
+    aesara/_version.py

.github/workflows/pypi.yml

@@ -29,15 +29,25 @@ jobs:
           python-version: "3.8"
       - name: Build the sdist and the wheel
         run: |
-          pip install wheel
-          python setup.py sdist bdist_wheel
+          python -m pip install -U pip
+          python -m pip install build
+          python -m build
       - name: Check the sdist installs and imports
         run: |
           mkdir -p test-sdist
           cd test-sdist
           python -m venv venv-sdist
           venv-sdist/bin/python -m pip install ../dist/aesara-*.tar.gz
           venv-sdist/bin/python -c "import aesara;print(aesara.__version__)"
+          test -n "$(find . -name lazylinker_c.c)"
+      - name: Check the wheel installs and imports
+        run: |
+          mkdir -p test-wheel
+          cd test-wheel
+          python -m venv venv-wheel
+          venv-wheel/bin/python -m pip install ../dist/aesara-*.whl
+          venv-wheel/bin/python -c "import aesara;print(aesara.__version__)"
+          test -n "$(find . -name lazylinker_c.c)"
       - uses: actions/upload-artifact@v2
         with:
           name: artifact