Index: head/math/py-matplotlib2/Makefile
===================================================================
--- head/math/py-matplotlib2/Makefile	(revision 559937)
+++ head/math/py-matplotlib2/Makefile	(revision 559938)
@@ -1,72 +1,72 @@
 # Created by: ijliao
 # $FreeBSD$
 
 PORTNAME=	matplotlib
 DISTVERSION=	2.2.4
 PORTREVISION=	2
 CATEGORIES=	math python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 PKGNAMESUFFIX=	2
 
 MAINTAINER=	mainland@apeiron.net
 COMMENT=	Plotting library uses a syntax familiar to MATLAB users (legacy)
 
 LICENSE=	PSFL
 
 BUILD_DEPENDS=	${PYNUMPY}
 LIB_DEPENDS=	libfreetype.so:print/freetype2 \
 		libpng.so:graphics/png \
 		libfontconfig.so:x11-fonts/fontconfig \
 		libtcl86.so:lang/tcl86
 RUN_DEPENDS=	${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}cycler>=0.10:devel/py-cycler@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}dateutil>=2.1:devel/py-dateutil@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pytz>=0:devel/py-pytz@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pyparsing>=0:devel/py-pyparsing@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}tornado>0:www/py-tornado@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}kiwisolver>=1.0.0:math/py-kiwisolver@${PY_FLAVOR}
 
-USES=		compiler:c++11-lib gettext gnome pkgconfig python shebangfix uniquefiles:dirs
+USES=		compiler:c++11-lib gettext gnome pkgconfig python:3.6+ shebangfix uniquefiles:dirs
 USE_PYTHON=	autoplist distutils
 
 CFLAGS+=	-I${LOCALBASE}/include
 
 OPTIONS_DEFINE=		EXAMPLES \
 			QT5AGGBACKEND TKAGGBACKEND
 OPTIONS_DEFAULT=	TKAGGBACKEND
 OPTIONS_SUB=		yes
 
 QT5AGGBACKEND_DESC=	Qt5Agg backend support
 QT5AGGBACKEND_USES=	display pyqt:5
 QT5AGGBACKEND_USE=	PYQT=sip,widgets
 QT5AGGBACKEND_VARS=	QT5AGG_BACKEND=True
 QT5AGGBACKEND_VARS_OFF=	QT5AGG_BACKEND=False
 TKAGGBACKEND_DESC=	TKAgg backend support
 TKAGGBACKEND_BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}tkinter>0:x11-toolkits/py-tkinter@${PY_FLAVOR}
 TKAGGBACKEND_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}tkinter>0:x11-toolkits/py-tkinter@${PY_FLAVOR}
 TKAGGBACKEND_USES=	display tk:run
 TKAGGBACKEND_VARS=	TKAGG_BACKEND=True
 TKAGGBACKEND_VARS_OFF=	TKAGG_BACKEND=False
 
 PORTEXAMPLES=	*
 
 post-extract:
 	@${FIND} ${WRKSRC} -name '*.py' | ${XARGS} ${CHMOD} -x
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|%%QT5AGG_BACKEND%%|${QT5AGG_BACKEND}|g' \
 			 -e 's|%%TKAGG_BACKEND%%|${TKAGG_BACKEND}|g' \
 		${WRKSRC}/setup.cfg
 
 post-install:
 	${MKDIR} ${STAGEDIR}${PYTHON_SITELIBDIR}/matplotlib/backends/web_backend/jquery-ui-1.12.1
 	cd ${WRKSRC}/lib/matplotlib/backends/web_backend/jquery-ui-1.12.1 && ${COPYTREE_SHARE} . ${STAGEDIR}${PYTHON_SITELIBDIR}/matplotlib/backends/web_backend/jquery-ui-1.12.1
 	${FIND} ${STAGEDIR}${PYTHON_SITELIBDIR}/matplotlib -name '*.so' \
 		| ${XARGS} ${STRIP_CMD}
 
 post-install-EXAMPLES-on:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	${CP} -R ${WRKSRC}/examples/ ${STAGEDIR}${EXAMPLESDIR}
 
 .include <bsd.port.mk>
Index: head/www/py-tornado/Makefile
===================================================================
--- head/www/py-tornado/Makefile	(revision 559937)
+++ head/www/py-tornado/Makefile	(revision 559938)
@@ -1,29 +1,29 @@
 # Created by: Guixing Bai <khsing.cn@gmail.com>
 # $FreeBSD$
 
 PORTNAME=	tornado
 PORTVERSION=	5.1.1
 CATEGORIES=	www python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Python Web Server from FriendFeed
 
 LICENSE=	APACHE20
 
 RUN_DEPENDS=	${PY_FUTURES}
 
-USES=		python
+USES=		python:3.6+
 USE_PYTHON=	autoplist concurrent distutils
 
 CONFLICTS_INSTALL=	${PYTHON_PKGNAMEPREFIX}tornado4 \
 			${PYTHON_PKGNAMEPREFIX}tornado6
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PYTHON_SITELIBDIR}/tornado/speedups*.so
 
 do-test:
 	@cd ${WRKSRC} && ${PYTHON_CMD} -m tornado.test.runtests
 
 .include <bsd.port.mk>