gistfile1.py

class EmailMessage(EmailMultiAlternatives):                                     
    """A small helper class that wraps the EmailMultiAlternatives class.        
    
    This allows you to pass a single template name, minus the extension, and    
    have it render each as a template. Text and HTML currently supported.       
    """                                                                         
    TEMPLATES = ['txt', 'html']                                                 

    def __init__(self, to, subject, template_name, **kwargs):                   
        if not isinstance(to, list):                                            
            to = [to]                                                           

        message = {}
        for ext in EmailMessage.TEMPLATES:                                      
            t = loader.get_template('%s.%s' % (template_name, ext))             
            c = kwargs.get('context', {})                                       
            c['site'] = Site.objects.get_current()                              
            message[ext] = t.render(Context(c))                                 
                                                                                
        super(EmailMessage, self).__init__(_(subject), message['txt'], None, to)
        self.attach_alternative(message['html'], 'text/html')