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-rw-r--r--Lib/_osx_support.py5
-rw-r--r--Misc/NEWS.d/next/macOS/2023-12-10-20-30-06.gh-issue-102362.y8svbF.rst3
2 files changed, 8 insertions, 0 deletions
diff --git a/Lib/_osx_support.py b/Lib/_osx_support.py
index aa66c8b..0cb064f 100644
--- a/Lib/_osx_support.py
+++ b/Lib/_osx_support.py
@@ -507,6 +507,11 @@ def get_platform_osx(_config_vars, osname, release, machine):
# MACOSX_DEPLOYMENT_TARGET.
macver = _config_vars.get('MACOSX_DEPLOYMENT_TARGET', '')
+ if macver and '.' not in macver:
+ # Ensure that the version includes at least a major
+ # and minor version, even if MACOSX_DEPLOYMENT_TARGET
+ # is set to a single-label version like "14".
+ macver += '.0'
macrelease = _get_system_version() or macver
macver = macver or macrelease
diff --git a/Misc/NEWS.d/next/macOS/2023-12-10-20-30-06.gh-issue-102362.y8svbF.rst b/Misc/NEWS.d/next/macOS/2023-12-10-20-30-06.gh-issue-102362.y8svbF.rst
new file mode 100644
index 0000000..55c5ac0
--- /dev/null
+++ b/Misc/NEWS.d/next/macOS/2023-12-10-20-30-06.gh-issue-102362.y8svbF.rst
@@ -0,0 +1,3 @@
+Make sure the result of :func:`sysconfig.get_plaform` includes at least a
+major and minor versions, even if ``MACOSX_DEPLOYMENT_TARGET`` is set to
+only a major version during build to match the format expected by pip.