Name refactoring

lib/generics_3_without_generics.py

@@ -0,0 +1,37 @@
+from dataclasses import dataclass
+from typing import List, Optional
+
+
+@dataclass
+class UserBase:
+    id: int
+    first_name: str
+    last_name: str
+
+
+@dataclass
+class Employee(UserBase):
+    department: str
+
+
+@dataclass
+class Partner(UserBase):
+    company: str
+
+
+class UserContainer(list):
+    def get_user_by_id(self, id: int) -> Optional[UserBase]:
+        for user in self:
+            if user.id == id:
+                return user
+        return None
+
+
+class EmployeeContainer(UserContainer):
+    def get_by_department(self, department: str) -> List[Employee]:
+        return [user for user in self if user.department == department]
+
+
+class PartnerContainer(UserContainer):
+    def get_by_company(self, company: str) -> List[Partner]:
+        return [user for user in self if user.company == company]