[forwarded from http://bugs.debian.org/225421]

Consider the following code:

   import email.Message
   msg = email.Message.Message()
   msg.add_header('Content-Disposition', 'attachment',
filename='bud.gif')
   msg.del_param('filename', 'Content-Disposition')

According to the documentation, this should be the
correct syntax.
However, ValueError is raised in del_param.

   Traceback (most recent call last):
     File "pybug.py", line 4, in ?
       msg.del_param('filename', 'Content-Disposition')
     File "/usr/lib/python2.3/email/Message.py", line
675, in del_param
       for p, v in self.get_params(header,
unquote=requote):
   ValueError: need more than 1 value to unpack

It seems to me like a simple mistake of the argument
order in the get_params call. The included patch fixes
it, at least my program works again (maybe the same
mistake is made in more places).

Logged In: YES 
user_id=12800

Patch accepted.  Checked into Python 2.3 and 2.4 along with
test cases.