Python mail truncate problem

[David]

On May 18, 5:10 am, bieff... at gmail.com wrote:
> On 18 Mag, 05:51, David <Ww... at yahoo.com> wrote:
>
>
>
>
>
> > Hi,
>
> > I am writing Python script to process e-mails in a user's mail
> > account. What I want to do is to update that e-mail's Status to 'R'
> > after processing it, however, the following script truncates old e-
> > mails even though it updates that e-mail's Status correctly. Anybody
> > knows how to fix this?
>
> > Thanks so much.
>
> >   fp = '/var/spool/mail/' + user
> >                 mbox = mailbox.mbox(fp)
>
> >                 for key, msg in mbox.iteritems():
> >                         flags = msg.get_flags()
>
> >                         if 'R' not in flags:
> >                                 # now process the e-mail
> >                                 # now update status
> >                                 msg.add_flag('R' + flags)
> >                                 mbox[key] = msg
>
> I have no idea about your problem. However, I believe that  the last
> statement
> "mbox[key] = msg" is not needed. The objects returned by
> dict.iteritems are not copies but
> the actual ones in the dictionary, so your msg.add_flag() already
> modifies the object in mbox.
>
> HTH
>
> Ciao
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thanks for your reply. If I delete "mbox[key] = msg", then the actual
files can not be updated for status.