add pyproject.toml

pyproject.toml

@@ -0,0 +1,26 @@
+[build-system]
+requires = [
+    "setuptools>=42",
+    "wheel",
+    "ninja",
+    "cmake>=3.12",
+    "pybind11"
+]
+build-backend = "setuptools.build_meta"
+
+[tool.isort]
+profile = "black"
+
+[tool.pytest.ini_options]
+minversion = "6.0"
+addopts = ["-ra", "--showlocals", "--strict-markers", "--strict-config"]
+xfail_strict = true
+filterwarnings = ["error"]
+testpaths = ["tests"]
+
+[tool.cibuildwheel]
+test-command = "pytest {project}/tests"
+test-extras = ["test"]
+test-skip = ["*universal2:arm64"]
+# Setuptools bug causes collision between pypy and cpython artifacts
+before-build = "rm -rf {project}/build"