Add barious methods to python binding.

python_binding/data/pybind_Data.cpp

@@ -60,6 +60,16 @@ void init_Data(py::module& m){
     bindEnum<DataType>(m, "dtype");
     bindEnum<DataFormat>(m, "dformat");
 
+    py::enum_<DataFormat>(m, "dformat")
+    .value("Default", DataFormat::Default)
+    .value("NCHW", DataFormat::NCHW)
+    .value("NHWC", DataFormat::NHWC)
+    .value("CHWN", DataFormat::CHWN)
+    .value("NCDHW", DataFormat::NCDHW)
+    .value("NDHWC", DataFormat::NDHWC)
+    .value("CDHWN", DataFormat::CDHWN)
+    ;
+
     py::class_<Data, std::shared_ptr<Data>>(m,"Data");