Getting multipart email notifications working again

[Christopher Nuzum]

I used to use the template below with the NotifyExtension, but it  
broke several revisions ago (I think it broke in 1.2)  and sine then  
I've been unable to get any variation of multipart notification  
messages working. The error I get is "remote: error: incoming.notify  
hook raised an exception: 'list' object has no attribute 'decode'".

My goal is to treat the diff that's appended as an attachment, showing  
only the overview in the content of the email message, and as I  
mentioned, this used to work beautifully.

I've replaced with newlines for readability in the template below.

I'd be grateful for any assistance!

Thanks,
Chris

template = Subject:{desc|strip|firstline}
Content-Type: multipart/mixed; charset=UTF-8;
  boundary="------------060603030707070705090608"

This is a multi-part message in MIME format.
--------------060603030707070705090608
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit

{desc}

user:      {author}
date:      {date|date}

hg branch {branches}

tags:        {tags}

files affected: {files}

files added: {file_adds}

files removed: {file_dels}

changeset: {rev}:{node|short}
parents: {parents}

--------------060603030707070705090608
Content-Type: text/plain; charset=UTF-8;
  name="details.txt"
Content-Transfer-Encoding: 8bit
Content-Disposition: inline;
  filename="details.txt"