Implement Emails class for unique email validation

Week05/emails_recepkadir_altıntaş.py

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+class Emails(list):
+    def __init__(self, emails):
+        unique_emails = []
+        seen = set()
+        for email in emails:
+            if email not in seen:
+                unique_emails.append(email)
+                seen.add(email)
+
+        self.validate(unique_emails)
+        super().__init__(unique_emails)
+        self.data = self
+
+    def validate(self, emails):
+        for email in emails:
+            if not isinstance(email, str):
+                raise ValueError("All items must be strings")
+
+            if "@" not in email:
+                raise ValueError("Email must contain @")
+
+            parts = email.split("@")
+            if len(parts) != 2 or "." not in parts[1]:
+                raise ValueError("Invalid domain format")
+
+    def __repr__(self):
+        return f"Emails({super().__repr__()})"
+
+    def __str__(self):
+        return super().__str__()