def save(self, domain_override=""):
source = web.input()
"""
Create the new ``User`` and ``RegistrationProfile``, and
returns the ``User`` (by calling
``RegistrationProfile.objects.create_inactive_user()``).
"""
new_user = RegistrationProfile.create_inactive_user(
username=source["username"],
password=source["password"],
email=source["email"],
domain_override=domain_override,
)
return new_user
