diff --git a/devel/py-mime/Makefile b/devel/py-mime/Makefile
index 46bc7fb5f45e..8718afa909e0 100644
--- a/devel/py-mime/Makefile
+++ b/devel/py-mime/Makefile
@@ -1,22 +1,33 @@
 PORTNAME=	mime
 PORTVERSION=	0.1.0
 PORTREVISION=	1
 CATEGORIES=	devel
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	gettoknowmi@yahoo.com
 COMMENT=	MIME types are used in MIME-compliant communications
 WWW=		https://github.com/liluo/mime
 
 LICENSE=	MIT
 LICENSE_FILE=	${FILESDIR}/LICENSE
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}future>0:devel/py-future@${PY_FLAVOR}
 
 USES=		python:run
 USE_PYTHON=	autoplist distutils
 
 NO_ARCH=	yes
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+#Error: Python package installs top-level 'tests/' directory in site-packages
+#	Error:   Location: lib/python3.12/site-packages/tests
+#	Error: This causes file conflicts with other packages. Exclude it via pyproject.toml:
+#Error:   [tool.setuptools.packages.find]
+#	Error:   exclude = ["tests", "tests.*"]
+.if ${PYTHON_REL} >= 31200
+IGNORE=		Does not support Python 3.12 or later
+.endif
+
+.include <bsd.port.post.mk>