Unbreak bulk -a

devel/py-apptools/Makefile

@@ -20,7 +20,7 @@ RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}traitsui>=0:graphics/py-traitsui@${PY_FLAVOR
 		${PYTHON_PKGNAMEPREFIX}six>0:devel/py-six@${PY_FLAVOR}
 # The requirements are defined in apptools/__init__.py
 
-USES=		python
+USES=		python:3.6+
 USE_PYTHON=	autoplist distutils
 
 NO_ARCH=	yes

devel/py-envisage/Makefile

@@ -19,7 +19,7 @@ RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}apptools>0:devel/py-apptools@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}traits>=4.5.0:devel/py-traits@${PY_FLAVOR}
 # Above requirements are defined in setup.py
 
-USES=		python
+USES=		python:3.6+
 USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes

devel/py-pyface/Makefile

@@ -26,7 +26,7 @@ TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}mock>0:devel/py-mock@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}numpy>0:math/py-numpy@${PY_FLAVOR} \
 		${PY_PYGMENTS}
 
-USES=		python
+USES=		python:3.6+
 USE_PYTHON=	autoplist distutils
 
 NO_ARCH=	yes

graphics/py-traitsui/Makefile

@@ -32,7 +32,7 @@ TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}numpy>0:math/py-numpy@${PY_FLAVOR} \
 py27_TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}mock>0:devel/py-mock@${PY_FLAVOR}
 # Those requirements (except for pip + coverage) were extracted from etstool.py
 
-USES=		python
+USES=		python:3.6+
 USE_PYTHON=	autoplist distutils
 
 NO_ARCH=	yes

science/py-scimath/Makefile

@@ -17,7 +17,7 @@ BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}traits>=0:devel/py-traits@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}numpy>=0:math/py-numpy@${PY_FLAVOR}
 RUN_DEPENDS:=	${BUILD_DEPENDS}
 
-USES=		python
+USES=		python:3.6+
 USE_PYTHON=	distutils autoplist
 
 .include <bsd.port.mk>