Add Week05 emails assignment - Feyza

Week05/emails_feyza_ozdemir.py

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+class Emails(list):
+    """
+    A custom list class for storing and validating email addresses.
+    Inherits from the built-in list class.
+    """
+
+    def __init__(self, emails_list):
+        """
+        Initializes the Emails object with a list of email addresses.
+        Validates each email and prevents duplicate entries.
+        """
+        super().__init__()
+
+        self.data = self
+
+        for email in emails_list:
+
+            if not isinstance(email, str):
+                raise ValueError("All elements must be of type string.")
+
+            if not self.validate(email):
+                raise ValueError("Invalid email address format.")
+
+            if email not in self:
+                self.append(email)
+
+    def validate(self, email: str) -> bool:
+        """
+        Validates the email format.
+        An email is considered valid if it contains an '@' symbol
+        and a '.' in the domain part (after the '@').
+        """
+        if "@" in email:
+            domain_part = email.split("@")[-1]
+            if "." in domain_part:
+                return True
+        return False
+
+    def __repr__(self):
+        """
+        Returns the official string representation of the Emails object.
+        """
+        return super().__repr__()
+
+    def __str__(self):
+        """
+        Returns the user-friendly string representation of the Emails object.
+        """
+        return super().__str__()