Major refactoring

article.py

@@ -0,0 +1,42 @@
+
+
+class Article:
+    def __init__(self, id, title, description, price, currency, url):
+        self._id = id
+        self._title = title
+        self._description = description
+        self._price = price
+        self._currency = currency
+        self._url = url
+
+    @classmethod
+    def load_from_json(cls, json_data):
+        return cls(
+            json_data['id'],
+            json_data['title'],
+            json_data['description'],
+            json_data['price'],
+            json_data['currency'],
+            json_data['web_slug']
+        )
+
+    def get_id(self):
+        return self._id
+
+    def get_title(self):
+        return self._title
+
+    def get_description(self):
+        return self._description
+
+    def get_price(self):
+        return self._price
+
+    def get_currency(self):
+        return self._currency
+
+    def get_url(self):
+        return self._url
+
+    def __eq__(self, article2):
+        return self.get_id() == article2.get_id()