Add Emails class with validation methods

Week05/emails_kerimcan_dede.py

@@ -0,0 +1,34 @@
+class Emails(list):
+
+    def validate(self):
+        for email in self:
+            if not isinstance(email, str):
+                raise ValueError("Emails must be string.")
+            if email.count("@") != 1:
+                raise ValueError("Emails must contain one @.")
+            if "." not in email.split("@")[1]:
+                raise ValueError("Emails must contain a dot after @.")
+        else:
+            print("Validation is successfull.")
+
+
+    def __init__(self, iterable=None):
+        super().__init__(iterable if iterable is not None else [])
+        try:
+            self.validate()
+        except ValueError as error:
+            print(error)
+
+        unique_emails = list(dict.fromkeys(self))
+        super().clear()
+        super().extend(unique_emails)
+
+    def __repr__(self):
+        return f"Email list : ({super().__repr__()})"
+
+    def __str__(self):
+        return f"Email list : {list(self)}"
+
+    @property
+    def data(self):
+        return self