From 9be87a320c44a245602c6e537be02691075d681d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Recep=20G=C3=B6ktu=C4=9F=20Avc=C4=B1?=
 <220316021@ogr.cbu.edu.tr>
Date: Fri, 6 Nov 2026 18:04:24 +0300
Subject: [PATCH] Create Emails class for email validation and storage

Implement an Emails class to manage a list of unique, validated email addresses.
---
 Week05/emails_recep_goktug_avci.py | 37 ++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 Week05/emails_recep_goktug_avci.py

diff --git a/Week05/emails_recep_goktug_avci.py b/Week05/emails_recep_goktug_avci.py
new file mode 100644
index 00000000..3cbc5e98
--- /dev/null
+++ b/Week05/emails_recep_goktug_avci.py
@@ -0,0 +1,37 @@
+class Emails(list):
+    def __init__(self, emails=None):
+        if emails is None:
+            emails = []
+
+        valid_unique_emails = []
+        for email in emails:
+            self.validate(email)
+            if email not in valid_unique_emails:
+                valid_unique_emails.append(email)
+
+
+        super().__init__(valid_unique_emails)
+        self.data = self
+
+    @staticmethod
+    def validate(email):
+        if not isinstance(email, str):
+            raise ValueError(f"email must be a string, got {type(email)}")
+        if email.count("@") != 1:
+            raise ValueError(f"invalid email address: {email}")
+
+        user, domain = email.split("@")
+
+        if not user or not domain:
+            raise ValueError(f"invalid email address: {email}")
+
+        if "." not in domain or domain.startswith(".") or domain.endswith("."):
+            raise ValueError(f"invalid email address: {email}")
+        
+        return True 
+
+    def __repr__(self):
+        return f"Emails({list(self)})"
+
+    def __str__(self):
+        return super().__str__()