Make base imports explicit.
# See the License for the specific language governing permissions and
# limitations under the License.
-from .base import *
+from .base import ( # noqa: F401
+ Dependency, DependencyException, DependencyMethods, ExternalProgram, ExternalLibrary, ExtraFrameworkDependency,
+ InternalDependency, PkgConfigDependency, find_external_dependency, get_dep_identifier, packages)
from .dev import GMockDependency, GTestDependency, LLVMDependency, ValgrindDependency
from .misc import BoostDependency, Python3Dependency, ThreadDependency
from .platform import AppleFrameworks
