python: minor cleanup.

src/python/magnum/meshtools.cpp

@@ -35,8 +35,8 @@
 namespace magnum { namespace {
 
 void meshtools(py::module& m) {
-    m.import("magnum.gl");
-    m.import("magnum.trade");
+    py::module::import("magnum.gl");
+    py::module::import("magnum.trade");
 
     m
         .def("compile", [](const Trade::MeshData2D& data) {

src/python/magnum/primitives.cpp

@@ -34,7 +34,7 @@
 namespace magnum { namespace {
 
 void primitives(py::module& m) {
-    m.import("magnum.trade");
+    py::module::import("magnum.trade");
 
     py::enum_<Primitives::SquareTextureCoords>{m, "SquareTextureCoords", "Whether to generate square texture coordinates"}
         .value("DONT_GENERATE", Primitives::SquareTextureCoords::DontGenerate)

src/python/magnum/shaders.cpp

@@ -61,7 +61,7 @@ template<UnsignedInt dimensions> void vertexColor(NonDestructibleBase<Shaders::V
 }
 
 void shaders(py::module& m) {
-    m.import("magnum.gl");
+    py::module::import("magnum.gl");
 
     /* 2D/3D vertex color shader */
     {