'Verifiy that the values entered into the two password fields
match. Note that an error here will end up in
``non_field_errors()`` because it doesn\'t apply to a single
field.'

def clean(self):

    if (('password1' in self.cleaned_data) and ('password2' in self.cleaned_data)):
        if (self.cleaned_data['password1'] != self.cleaned_data['password2']):
            raise forms.ValidationError(_("The    two    password    fields    didn't    match."))
    return self.cleaned_data
