GitLab CI: Use buster instead of stretch.

matemat/primitives/Product.py

@@ -12,17 +12,17 @@ class Product(object):
         self._price_non_member: int = 0
         raise NotImplementedError('This shoudt not be called!')
 
-    def __init__(self,
-                 product_id: int,
-                 name: str,
-                 price_member: int,
-                 price_non_member: int):
-        if product_id == -1:
-            raise ValueError('Invalid product ID')
-        self._product_id: int = product_id
-        self._name: str = name
-        self._price_member: int = price_member
-        self._price_non_member: int = price_non_member
+    # def __init__(self,
+    #              product_id: int,
+    #              name: str,
+    #              price_member: int,
+    #              price_non_member: int):
+    #     if product_id == -1:
+    #         raise ValueError('Invalid product ID')
+    #     self._product_id: int = product_id
+    #     self._name: str = name
+    #     self._price_member: int = price_member
+    #     self._price_non_member: int = price_non_member
 
     @property
     def id(self) -> int: