'Checking user object against given email id.'

def clean_email(self):

    email = self.cleaned_data['email']
    try:
        user = User.objects.get(email=email)
    except Exception:
        raise forms.ValidationError(u'Email    does    not    exist.    Could    not    find    {email}.    Please    re-enter    email    address'.format(email=email))
    return user
