Modernize metadata, declare build system

.github/workflows/test.yml

@@ -10,6 +10,11 @@ on:
 
 permissions: read-all
 
+concurrency:
+  # Cancel previous runs of this workflow for the same branch
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test:
     runs-on: ubuntu-20.04
@@ -29,7 +34,7 @@ jobs:
           conda list
       - name: Install pari-jupyter
         shell: bash -l {0}
-        run: pip install --verbose --no-index .
+        run: pip install --verbose --no-build-isolation .
       - name: Run test
         shell: bash -l {0}
         run: |

.gitignore

@@ -3,3 +3,4 @@ dist
 MANIFEST
 *.c
 *.pyc
+*.egg-info

MANIFEST.in

@@ -1,2 +1,2 @@
-include LICENSE README.rst MANIFEST.in
-recursive-include PARIKernel *.py *.pyx *.pxd *.c
+recursive-include PARIKernel *.py *.pyx *.pxd
+recursive-exclude PARIKernel *.c

pyproject.toml

@@ -0,0 +1,37 @@
+[build-system]
+requires = ["setuptools",
+            "Cython>=0.29"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "pari-jupyter"
+description = "A Jupyter kernel for PARI/GP"
+authors = [
+    {name = "Jeroen Demeyer"},
+]
+maintainers = [
+    {name = "SageMath developers", email = "[email protected]"},
+]
+dependencies = [
+    "ipykernel",
+]
+requires-python = ">=3.8"
+readme = "README.rst"
+license = {text = "GNU General Public License (GPL) version 3 or later"}
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)",
+    "Operating System :: POSIX",
+    "Programming Language :: Cython",
+    "Topic :: Scientific/Engineering :: Mathematics",
+]
+dynamic = [
+    "version",
+]
+
+[project.urls]
+Homepage = "https://github.com/sagemath/pari-jupyter"
+
+[tool.setuptools.dynamic]
+version = {file = "VERSION"}

setup.py

@@ -4,7 +4,6 @@
 from glob import glob
 from setuptools import setup, Extension
 from setuptools.command.bdist_egg import bdist_egg as _bdist_egg
-import PARIKernel
 
 kernelpath = os.path.join("share", "jupyter", "kernels", "pari_jupyter")
 nbextpath = os.path.join("share", "jupyter", "nbextensions", "gp-mode")
@@ -45,25 +44,6 @@ def run(self):
 
 
 setup(
-    name='pari-jupyter',
-    version=PARIKernel.__version__,
-    description='A Jupyter kernel for PARI/GP',
-    long_description=open("README.rst").read(),
-    long_description_content_type='text/x-rst',
-    platforms=["POSIX"],
-    author='Jeroen Demeyer',
-    author_email='[email protected]',
-    license='GNU General Public License (GPL) version 3 or later',
-    url="https://github.com/sagemath/pari-jupyter",
-    classifiers=["Development Status :: 5 - Production/Stable",
-                 "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)",
-                 "Operating System :: POSIX",
-                 "Programming Language :: Cython",
-                 "Intended Audience :: Science/Research",
-                 "Topic :: Scientific/Engineering :: Mathematics",
-                ],
-    install_requires=['ipykernel'],
-
     packages=['PARIKernel'],
     ext_modules=extensions,
     data_files=[(kernelpath, glob("spec/*")),