now that py-packaging 22.0 has been released with its own hand-written parser,

py-parsing is no longer part of the requirements for MODPY_PYBUILD ports,
so change it to a standard MODPY_PYBUILD port and drop the BDEP on pip

devel/py-parsing/Makefile

@@ -1,36 +1,24 @@
-COMMENT =		Python parsing module
+COMMENT=	Python parsing module
 
-MODPY_EGG_VERSION =	3.0.9
-REVISION =		2
-DISTNAME =		pyparsing-${MODPY_EGG_VERSION}
-PKGNAME =		${DISTNAME:S/py/py-/}
-CATEGORIES =		devel
+MODPY_EGG_VERSION=	3.0.9
+REVISION=	2
+DISTNAME=	pyparsing-${MODPY_EGG_VERSION}
+PKGNAME=	${DISTNAME:S/py/py-/}
+CATEGORIES=	devel
 
-HOMEPAGE =		https://github.com/pyparsing/pyparsing/
+HOMEPAGE=	https://github.com/pyparsing/pyparsing/
 
 # MIT
-PERMIT_PACKAGE =	Yes
+PERMIT_PACKAGE=	Yes
 
-MODULES =		lang/python
-MODPY_PI =		Yes
+MODULES=	lang/python
+MODPY_PI=	Yes
+MODPY_PYBUILD=	flit_core
 
-FLAVORS =		python3
-FLAVOR =		python3
+FLAVORS=	python3
+FLAVOR=		python3
 
 # test_diagram needs railroad
-MODPY_PYTEST_ARGS =	--ignore tests/test_diagram.py tests
-
-# can't use MODPY_PYBUILD=flit_core because that pulls in py-build
-# which depends on this.
-BUILD_DEPENDS +=	devel/py-flit_core${MODPY_FLAVOR} \
-			devel/py-installer${MODPY_FLAVOR} \
-			devel/py-pip${MODPY_FLAVOR}
-
-do-build:
-	cd ${WRKSRC} && pip wheel -v --no-index --no-cache --no-deps --no-build-isolation .
-
-do-install:
-	${INSTALL_DATA_DIR} ${WRKINST}${MODPY_LIBDIR}; \
-	${MODPY_BIN} -m installer -d ${WRKINST} ${WRKSRC}/*.whl
+MODPY_PYTEST_ARGS=	--ignore tests/test_diagram.py tests
 
 .include <bsd.port.mk>