Downgrade pp64le to tier 4 and skip tests

.github/workflows/wheels.yml

@@ -144,7 +144,6 @@ jobs:
         env:
           CIBW_SKIP: cp36-* cp37-* cp39-* cp310-* cp311-* pp* *win32 *musl*
           CIBW_ARCHS_LINUX: s390x
-          CIBW_TEST_SKIP: "*-*linux_s390x"
       - uses: actions/upload-artifact@v3
         with:
           path: ./wheelhouse/*.whl
@@ -175,7 +174,6 @@ jobs:
         env:
           CIBW_SKIP: cp36-* cp37-* cp38-* cp312-* pp* *win32 *musl*
           CIBW_ARCHS_LINUX: s390x
-          CIBW_TEST_SKIP: "*-*linux_s390x"
       - uses: actions/upload-artifact@v3
         with:
           path: ./wheelhouse/*.whl

pyproject.toml

@@ -13,7 +13,7 @@ skip = "pp* cp36-* cp37-* *win32 *musllinux*i686"
 test-requires = "networkx"
 test-command = "python -m unittest discover {project}/tests/rustworkx_tests"
 before-build = "pip install -U setuptools-rust"
-test-skip = "cp38-*musllinux*"
+test-skip = "cp38-*musllinux* *-*linux_s390x -*linux_ppc64le"
 
 [tool.cibuildwheel.linux]
 before-all = "yum install -y wget && {package}/tools/install_rust.sh"
@@ -27,9 +27,5 @@ before-all = "apk add apk add --no-cache curl gcc && curl https://sh.rustup.rs -
 select = "*i686"
 before-test = 'python -m pip install numpy --config-settings=setup-args="-Dallow-noblas=true"'
 
-[[tool.cibuildwheel.overrides]]
-select = "*ppc64le"
-before-test = 'python -m pip install numpy --config-settings=setup-args="-Dallow-noblas=true"'
-
 [tool.cibuildwheel.macos]
 environment = "MACOSX_DEPLOYMENT_TARGET=10.9"

releasenotes/notes/platform-updates-e9b296144e633c95.yaml

@@ -2,3 +2,15 @@
 features:
   - |
     Added support for musl Linux platforms on x86_64 and aarch64 at :ref:`tier-3`.
+upgrade:
+  - |
+    Support for the Linux ppc64le pllatform has changed from tier 3 to tier 4
+    (as documented in :ref:`platform-suppport`). This is a result of no longer
+    being able to run tests during the pre-compiled wheel publishing jobs due
+    to constraints in the available CI infrastructure. There hopefully
+    shouldn't be any meaningful impact resulting from this change, but as there
+    are no longer tests being run to validate the binaries prior to publishing
+    them there are no longer guarantees that the wheels for ppc64le are fully
+    functional (although the likelihood they are is still high as it works on
+    other platforms). If any issues are encountered with ppc64le Linux please
+    open an issue.