Week05 Homework - Sefa Sağırlı

Week05/emails_sefa_sagirli.py

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+import re
+
+
+class Emails(list):
+    """A list of unique and valid email addresses."""
+
+    EMAIL_PATTERN = re.compile(r"^[A-Za-z0-9._%+-]+@[A-Za-z0-9-]+(\.[A-Za-z0-9-]+)*\.[A-Za-z]{2,}$")
+
+    def __init__(self, emails):
+        self.data = self.validate(emails)
+        super().__init__(self.data)
+
+    def validate(self, emails):
+        """
+        Check the given email addresses and remove the duplicates.
+
+        :param emails: The email addresses to validate
+        :raises ValueError: If an item is not a string or not a valid email address
+        :return: A list of unique email addresses in their original order
+        """
+        unique_emails = []
+        for email in emails:
+            if not isinstance(email, str):
+                raise ValueError(f"{email!r} is not a string")
+            if not self.EMAIL_PATTERN.match(email):
+                raise ValueError(f"{email!r} is not a valid email address")
+            if email not in unique_emails:
+                unique_emails.append(email)
+        return unique_emails
+
+    def __repr__(self):
+        return f"{self.__class__.__name__}({self.data!r})"
+
+    def __str__(self):
+        return ", ".join(self.data)