Create emails_Sevval_Ok.py

Week05/emails_Sevval_Ok.py

@@ -0,0 +1,32 @@
+import re
+from typing import Iterable, List
+
+class Emails(list)
+    _EMAIL_RE = re.compile(
+        r"^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$"
+    )
+
+    @classmethod
+    def validate(cls, items: Iterable) -> List[str]:
+        cleaned = []
+        for it in items:
+            if not isinstance(it, str):
+                raise ValueError
+            if not cls._EMAIL_RE.match(it):
+                raise ValueError
+            cleaned.append(it)
+        return cleaned
+
+    def __init__(self, items):
+        validated = self.validate(items)
+
+        unique = list(dict.fromkeys(validated))
+
+        self.data = unique  # tests check .data.count(...)
+        super().__init__(unique)
+
+    def __repr__(self) -> str:       
+        return f"{self.__class__.__name__}({self.data!r})"
+
+    def __str__(self) -> str:
+        return ", ".join(self.data)