Project structure and classes

Project structure and classes created and initialized

core/item.py

@@ -0,0 +1,12 @@
+class Item:
+    def __init__(self, id, name, price) -> None:
+        self.id = id
+        self.name = name
+        self.price = float(price)
+
+    def to_json(self):
+        return {"id": self.id, "name": self.name, "price": self.price}
+
+    @staticmethod
+    def from_json(data):
+        return Item(data["id"], data["name"], data["price"])