Add python biding for MNIST database

python_binding/database/pybind_MNIST.cpp

+#include <pybind11/pybind11.h>
+#include <pybind11/stl.h>
+#include "aidge/backend/opencv/database/MNIST.hpp"
+
+namespace py = pybind11;
+namespace Aidge {
+
+void init_MNIST(py::module& m){
+
+    py::class_<MNIST, std::shared_ptr<MNIST>, Database>(m, "MNIST")
+          .def(py::init<const std::string&, bool, bool>(), py::arg("dataPath"), py::arg("train"), py::arg("load_data_in_memory")=false)
+          .def("get_item", &MNIST::getItem, py::arg("index"),
+          R"mydelimiter(
+          Return samples of each data modality for the given index.
+
+          :param index: Database index corresponding to one item
+          :type index: int
+          )mydelimiter")
+          
+          .def("get_len", &MNIST::getLen,
+          R"mydelimiter(
+          Return the number of items in the database.
+
+          )mydelimiter")
+
+          .def("get_nb_modalities", &MNIST::getNbModalities,
+          R"mydelimiter(
+          Return the number of modalities in one item of the database.
+          
+          )mydelimiter");
+    
+}
+}

python_binding/pybind_opencv.cpp

@@ -6,12 +6,9 @@ namespace py = pybind11;
 
 namespace Aidge {
 
-void init_Aidge(py::module& /*m*/){
-
-}
+void init_MNIST(py::module&);
 
 PYBIND11_MODULE(aidge_backend_opencv, m) {
-    init_Aidge(m);
+    init_MNIST(m);
 }
 }
-