Index: head/net-mgmt/py-napalm/Makefile
===================================================================
--- head/net-mgmt/py-napalm/Makefile	(revision 523356)
+++ head/net-mgmt/py-napalm/Makefile	(revision 523357)
@@ -1,45 +1,45 @@
 # $FreeBSD$
 
 PORTNAME=	napalm
 DISTVERSION=	2.5.0
 CATEGORIES=	net-mgmt python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	kai@FreeBSD.org
 COMMENT=	Net Automation and Progr. Abstraction Layer with Multivendor support
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}future>0:devel/py-future@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}Jinja2>0:devel/py-Jinja2@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}textfsm>0:textproc/py-textfsm@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}junos-eznc>=2.2.1:net-mgmt/py-junos-eznc@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}netaddr>0:net/py-netaddr@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}netmiko>=2.4.2:security/py-netmiko@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}paramiko>=2.4.2:security/py-paramiko@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}nxapi-plumbing>=0.5.2:net-mgmt/py-nxapi-plumbing@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pyeapi>=0.8.2:net-mgmt/py-pyeapi@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pyIOSXR>=0.53:net-mgmt/py-pyIOSXR@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}scp>0:security/py-scp@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}yaml>0:devel/py-yaml@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}cffi>=1.11.3:devel/py-cffi@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}ciscoconfparse>0:net-mgmt/py-ciscoconfparse@${PY_FLAVOR}
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest>=3.6.4:devel/py-pytest@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}mock>=2.0.0:devel/py-mock@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}ddt>=1.2.0:devel/py-ddt@${PY_FLAVOR}
 
-USES=		python
+USES=		python:3.6+
 USE_PYTHON=	distutils concurrent autoplist
 USE_GITHUB=	yes
 GH_ACCOUNT=	napalm-automation
 
 NO_ARCH=	yes
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|==|>=|' ${WRKSRC}/requirements.txt
 
 do-test:
 	@cd ${WRKSRC} && ${PYTHON_CMD} -m pytest -v -rs
 
 .include <bsd.port.mk>
Index: head/net-mgmt/py-pyIOSXR/Makefile
===================================================================
--- head/net-mgmt/py-pyIOSXR/Makefile	(revision 523356)
+++ head/net-mgmt/py-pyIOSXR/Makefile	(revision 523357)
@@ -1,22 +1,22 @@
 # $FreeBSD$
 
 PORTNAME=	pyIOSXR
 DISTVERSION=	0.53
 CATEGORIES=	net-mgmt python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	kai@FreeBSD.org
 COMMENT=	Python API to interact with network devices running IOS-XR
 
 LICENSE=	APACHE20
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pip>=0:devel/py-pip@${PY_FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}lxml>=3.2.4:devel/py-lxml@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}netmiko>=1.4.3:security/py-netmiko@${PY_FLAVOR}
 
-USES=		python
+USES=		python:3.6+
 USE_PYTHON=	distutils autoplist
 NO_ARCH=	yes
 
 .include <bsd.port.mk>