Emailaddressattribute

The emailaddressattribute is a built-in attribute in Django that is used to validate and normalize email addresses. It is a part of Django's built-in form validation system.

Here are some key features of the emailaddressattribute:

1. Validation: The emailaddressattribute validates the email address against a set of rules, including:
   • The email address must contain a local part (the part before the @ symbol) and a domain (the part after the @ symbol).
   • The local part must not contain any whitespace characters.
   • The domain must not contain any whitespace characters.
   • The email address must not contain any invalid characters, such as @ symbols outside of the local part and domain.
2. Normalization: The emailaddressattribute normalizes the email address by:
   • Converting the email address to lowercase.
   • Removing any whitespace characters from the local part and domain.
   • Removing any trailing dots (.) from the domain.
3. Internationalization: The emailaddressattribute is designed to work with internationalized email addresses, including those with non-ASCII characters.

To use the emailaddressattribute in a Django form, you can add it to a forms.EmailField or forms.EmailInput widget. For example:

from django import forms
from django.core.validators import EmailAddressValidator

class MyForm(forms.Form):
    email = forms.EmailField(validators=[EmailAddressValidator()])

In this example, the EmailAddressValidator is used to validate the email field against the rules defined by the emailaddressattribute. If the email address is invalid, the form will raise a ValidationError.