python-anyio: add a workaround for https://bugs.python.org/issue45097

PKGBUILD

@@ -16,9 +16,11 @@ optdepends=(
   'python-trio: trio backend'
 )
 source=(https://github.com/agronholm/anyio/archive/$pkgver/anyio-$pkgver.tar.gz
-        https://github.com/agronholm/anyio/commit/5ed3270c8d12cffc4cd3349d9ff32bc32451ae65.patch)
+        https://github.com/agronholm/anyio/commit/5ed3270c8d12cffc4cd3349d9ff32bc32451ae65.patch
+        bpo-45097.diff)
 sha256sums=('5872afba5b2a03461e8eb64538d8050d1f64fe54192ad67d8f34f6287ea7c729'
-            '30e94b5a37c124d3620c77abd835384b224eee3349bea0ddd19f3a268e71c9ca')
+            '30e94b5a37c124d3620c77abd835384b224eee3349bea0ddd19f3a268e71c9ca'
+            'ed0ad72f604697d247a2d74f5b4740fcda0fe478040fa6ff75120cd97d5985c8')
 
 export SETUPTOOLS_SCM_PRETEND_VERSION=$pkgver
 
@@ -32,6 +34,9 @@ prepare() {
 
   # https://github.com/agronholm/anyio/issues/347
   patch -Np1 -i ../5ed3270c8d12cffc4cd3349d9ff32bc32451ae65.patch
+
+  # Work around https://bugs.python.org/issue45097
+  patch -Np1 -i ../bpo-45097.diff
 }
 
 build() {

bpo-45097.diff

+diff --git a/pyproject.toml b/pyproject.toml
+index d6c4fa1..541290d 100644
+--- a/pyproject.toml
++++ b/pyproject.toml
+@@ -38,7 +38,8 @@ testpaths = ["tests"]
+ filterwarnings = [
+     "error",
+     "ignore:unclosed <socket.socket.*:ResourceWarning",
+-    "ignore:unclosed transport <_ProactorSocketTransport.*:ResourceWarning"
++    "ignore:unclosed transport <_ProactorSocketTransport.*:ResourceWarning",
++    "ignore:The loop argument is deprecated.*:DeprecationWarning",
+ ]
+ markers = [
+     "network: marks tests as requiring Internet access",