has added Co-Op chain. Extendability to other chain has significantly improved as well.

co_op.py

@@ -0,0 +1,36 @@
+from typing import Dict, List
+import requests
+from bs4 import BeautifulSoup
+from bs4.element import Tag
+from supermarket_chain import SupermarketChain
+
+
+class CoOp(SupermarketChain):
+    promotion_tag_name = 'Sale'
+    promotion_update_tag_name = 'PriceUpdateDate'
+    date_format = '%Y/%m/%d'
+    date_hour_format = '%Y/%m/%d %H:%M:%S'
+    item_tag_name = 'Product'
+
+    @staticmethod
+    def get_download_url(store_id: int, category: SupermarketChain.XMLFilesCategory) -> str:
+        prefix = "http://matrixcatalog.co.il/"
+        url = prefix + "NBCompetitionRegulations.aspx"
+        req_res: requests.Response = requests.get(url)
+        soup = BeautifulSoup(req_res.text, features='lxml')
+        suffix: str = soup.find('a', href=lambda value: value and category.name.replace('s', '') in value
+                                and f'-{store_id}-20' in value).attrs['href']
+        down_url = prefix + suffix
+        print(down_url)
+        return down_url
+
+    class XMLFilesCategory(SupermarketChain.XMLFilesCategory):
+        All, Promos, PromosFull, Prices, PricesFull, Stores = range(6)
+
+    def __repr__(self):
+        return 'Co-Op'
+
+    @staticmethod
+    def get_items(promo: Tag, items_dict: Dict[str, str]) -> List[str]:
+        promo_item = items_dict.get(promo.find('ItemCode').text)
+        return [promo_item] if promo_item else []