Index: textproc/py-tomli/Makefile
===================================================================
--- textproc/py-tomli/Makefile
+++ textproc/py-tomli/Makefile
@@ -1,5 +1,6 @@
 PORTNAME=	tomli
 PORTVERSION=	2.0.1
+PORTREVISION=	1
 CATEGORIES=	textproc python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
@@ -11,12 +12,11 @@
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		python:3.7+
-USE_PYTHON=	autoplist concurrent distutils
+USES=		python
+USE_PYTHON=	allflavors autoplist concurrent pep517
+PEP517_BUILD_CMD=	${PYTHON_CMD} -m flit_core.wheel
+PEP517_BUILD_DEPEND=	${PYTHON_PKGNAMEPREFIX}flit_core>0:devel/py-flit-core@${PY_FLAVOR}
 
 NO_ARCH=	yes
 
-post-patch:
-	@${SED} -e 's|%%PORTVERSION%%|${PORTVERSION}|' ${FILESDIR}/setup.py > ${WRKSRC}/setup.py
-
 .include <bsd.port.mk>
Index: textproc/py-tomli/files/setup.py
===================================================================
--- textproc/py-tomli/files/setup.py
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/usr/bin/env python
-# setup.py generated by flit for tools that don't yet use PEP 517
-
-from distutils.core import setup
-
-packages = \
-['tomli']
-
-package_data = \
-{'': ['*']}
-
-package_dir = \
-{'': 'src'}
-
-setup(name='tomli',
-      version='%%PORTVERSION%%',
-      description="A lil' TOML parser",
-      author=None,
-      author_email='Taneli Hukkinen <hukkin@users.noreply.github.com>',
-      url=None,
-      packages=packages,
-      package_data=package_data,
-      package_dir=package_dir,
-      python_requires='>=3.7',
-     )