Add PEP 517 to pyproject.toml

This puts a new minimum on the PEP 518 requirement for `setuptools` because older versions of setuptools' PEP 517 backend will fail to include `setup.py` in an sdist.
pyca · Feb 26, 2019 · b9bf9b3 · b9bf9b3
1 parent 8b2f548
commit b9bf9b3
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/pyproject.toml b/pyproject.toml
@@ -1,7 +1,8 @@
 [build-system]
 # Must be kept in sync with `setup_requirements` in `setup.py`
 requires = [
-    "setuptools>=18.5",
+    "setuptools>=40.6.0",
     "wheel",
     "cffi>=1.8,!=1.11.3; python_implementation != 'PyPy'",
 ]
+build-backend = "setuptools.build_meta"