Fixed #19133 -- Corrected regression in form handling for user passwords.

        kwargs.setdefault("required", False)

        super(ReadOnlyPasswordHashField, self).__init__(*args, **kwargs)

    def clean_password(self):

        return self.initial

class UserCreationForm(forms.ModelForm):

    """

        if f is not None:

            f.queryset = f.queryset.select_related('content_type')

    def clean_password(self):

        # Regardless of what the user provides, return the initial value.

        # This is done here, rather than on the field, because the

        # field does not have access to the initial value

        return self.initial["password"]

class AuthenticationForm(forms.Form):

    """

        self.assertIn(_("Invalid password format or unknown hashing algorithm."),

            form.as_table())

    def test_bug_19133(self):

        "The change form does not return the password value"

        # Use the form to construct the POST data

        user = User.objects.get(username='testclient')

        form_for_data = UserChangeForm(instance=user)

        post_data = form_for_data.initial

        # The password field should be readonly, so anything

        # posted here should be ignored; the form will be

        # valid, and give back the 'initial' value for the

        # password field.

        post_data['password'] = 'new password'

        form = UserChangeForm(instance=user, data=post_data)

        self.assertTrue(form.is_valid())

        self.assertEqual(form.cleaned_data['password'], 'sha1$6efc0$f93efe9fd7542f25a7be94871ea45aa95de57161')

@skipIfCustomUser

@override_settings(USE_TZ=False, PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',))