save to json

    def save_to_favourite(self):
        print('added')
        app = MDApp.get_running_app()
        self.image=app.root.get_screen('buyscreen').ids.product_image2.source
        self.name=app.root.get_screen('buyscreen').ids.product_name2.text
        self.price=app.root.get_screen('buyscreen').ids.product_price2.text
        self.desc=app.root.get_screen('buyscreen').ids.product_description2.text
        self.contact=app.root.get_screen('buyscreen').ids.product_contact2.text
        self.location=app.root.get_screen('buyscreen').ids.product_location2.text

        dict1 = {'1':{'name': self.name, 'price': self.price, "image": self.image,'description':self.desc,'contact':self.contact,'location':self.location}}
        with open(self.p, 'w') as f:
            #     f.write(json.dumps(dict1, indent=4))
            json.dump(dict1, f, indent=4)
        from pprint import pprint
        dict2 = {'3':{'name': self.name, 'price': self.price, "image": self.image,'description':self.desc,'contact':self.contact,'location':self.location}}
        if self.p.exists():
            dict1.update(dict2)
            pprint(dict2)
            with open(self.p, 'w') as f:
                json.dump(dict1, f)