title: emailmultialternatives attach file and html content in django
body: <p>I tried to use the <code>EmailMultiAlternatives</code> to send an email in <code>html</code> and 
  a text. I also want to include a file to this email. </p>
  
  <p>But the later seems to erase my html content. </p>
  
  <p>Here is my code : </p>
  
  <pre><code>msg = EmailMultiAlternatives(subject, html2text(html_content), 
  list(email_from), list(email_to), 
  attachments=((request.session['customer']+".txt.blowfish", 
  request.session["customer"].content),)) 
  
  msg.attach_alternative(html_content, "text/html") 
  
  msg.send() 
  </code></pre>
  
  <p>I use the latest SVN revision 
  I also tried using <code>msg.attact()</code> instead of attachments, same result! </p>
  
  <p>The alternative text content is sent, but the html one is not. It only 
  show the file. </p>
  
  <p>Any clue would be much appreciated, </p>