From 1a45cc4d83595c6e9134b358ecd1b73ce860219e Mon Sep 17 00:00:00 2001
From: Kyle Altendorf <sda@fstab.net>
Date: Thu, 3 Sep 2020 10:56:11 -0400
Subject: [PATCH] Support and use pep517.build

---
 ci/travis.sh   | 6 +++---
 pyproject.toml | 7 +++++++
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/ci/travis.sh b/ci/travis.sh
index cc4b0cd..e942577 100755
--- a/ci/travis.sh
+++ b/ci/travis.sh
@@ -15,7 +15,7 @@ if [ "$TRAVIS_OS_NAME" = "osx" ]; then
     source testenv/bin/activate
 fi
 
-pip install -U pip setuptools wheel
+pip install -U pip setuptools wheel pep517
 
 if [ "$CHECK_FORMATTING" = "1" ]; then
     pip install yapf==${YAPF_VERSION}
@@ -39,8 +39,8 @@ EOF
     exit 0
 fi
 
-python setup.py sdist --formats=zip
-pip install dist/*.zip
+python -m pep517.build --source --out-dir dist/ .
+python -m pip install dist/*.tar.gz
 
 if [ "$CHECK_DOCS" = "1" ]; then
     pip install -Ur ci/rtd-requirements.txt
diff --git a/pyproject.toml b/pyproject.toml
index 407fb8b..86cce2e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,3 +5,10 @@ directory = "newsfragments"
 title_format = "pytest-trio {version} ({project_date})"
 underlines = ["-", "~", "^"]
 issue_format = "`#{issue} <https://github.com/python-trio/pytest-trio/issues/{issue}>`__"
+
+[build-system]
+requires = [
+    "setuptools >= 50.0.3",
+    "wheel >= 0.35.1",
+]
+build-backend = "setuptools.build_meta"