PyQt interface for blender

Hello,
I create a PyQt script that contain 2 buttons and a scene layout.
I want to import Blender Scene my scene layout on my interface but i don’t know how to add it.
Can you help me please? I try to do it with this code:

import sys
import bpy
import os
from PyQt5.QtGui import *
from PyQt5.QtWidgets import (QMainWindow, QApplication,
                             QAction, qApp, QWidget, QGraphicsScene,
                             QHBoxLayout, QVBoxLayout, QGraphicsView,
                             QPushButton)
class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.form_widget = FormWidget(self)
class MyMainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MyMainWindow, self).__init__(parent)
        self.form_widget = FormWidget(self) 
        self.setCentralWidget(self.form_widget) 
class FormWidget(QWidget):
    def __init__(self, parent):        
        super(FormWidget, self).__init__(parent)
        context = bpy.context
        models_path = "//"
        render_path = "//"
        models = ["bretling.obj", "bretling.obj"]
        #create a scene
        scene = bpy.data.scenes.new("Scene")
        camera_data = bpy.data.cameras.new("Camera")
        camera = bpy.data.objects.new("Camera", camera_data)
        camera.location = (-2.0, 3.0, 3.0)
        camera.rotation_euler = (422.0, 0.0, 149)
        scene.objects.link(camera)
        
        self.scene = QGraphicsScene()
        self.view = QGraphicsView(self.scene)
        self.layout = QVBoxLayout(self)
        self.button1 = QPushButton("Button 1")
        self.layout.addWidget(self.button1)
        self.button2 = QPushButton("Button 2")
        self.layout.addWidget(self.button2)
        self.layout.addWidget(self.view)
        # do the same for lights etc
        scene.update() 
        self.setLayout(self.layout)
app = QApplication([])
foo = MyMainWindow()
foo.show()
app.exec_()

Maybe http://blender.stackexchange.com/questions/43899/how-to-import-pyqt-into-blender ?

I already run my PyQt interface on blender, Now i want to import Blender scene to this interface but i don’t know how can i do that.

I’m pretty sure you cannot have the blender scene in 3D like the viewport of blender inside your interface, but somebody who knows better should confirm that.

I found this command: “bpy.ops.import_scene.obj”, but i don’t know how to use it.

Ok, you want do play with the current scene or to display it in your QtFrame ? because it’s difficult to understand (je pense).

Yes desplay it in my QtFrame on reel time, Je voudrais afficher la scene de blender (ou l’objet) en temps réelle, c’est à dire quand j’exécute des scriptes python sur l’objet j’affiche les modifications de l’objet en temps réelle sur mon interface PyQt5.
j’espère être clair.

Is certainly used for loading OBJ file into blender. (cf : https://www.blender.org/api/blender_python_api_2_76_2/bpy.ops.import_scene.html)