Create emails_hatice_akgul.py

Week05/emails_hatice_akgul.py

@@ -0,0 +1,43 @@
+import re
+
+class Emails(list):
+    """
+    Emails class that extends list and validates email addresses.
+    """
+    def __init__(self, email_list):
+        validated_data = self.validate(email_list)
+        super().__init__(validated_data)
+        self.data = list(validated_data)
+
+    @staticmethod
+    def validate(email_list):
+        """
+        Validates that all items are strings and follow email format.
+        Removes duplicates while preserving order (or just unique set).
+        """
+        seen = []
+        email_regex = r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$'
+
+        for email in email_list:
+            if not isinstance(email, str):
+                raise ValueError("All items must be strings.")
+
+            if not re.match(email_regex, email):
+                raise ValueError(f"Invalid email format: {email}")
+
+            if email not in seen:
+                seen.append(email)
+
+        return seen
+
+    def __repr__(self):
+        """
+        Returns a string representation that can recreate the object.
+        """
+        return f"Emails({list(self)})"
+
+    def __str__(self):
+        """
+        Returns a user-friendly string representation.
+        """
+        return f"Email List: {list(self)}"