Solved

Python: mailbox() and set_flag

Posted on 2009-05-12
5
292 Views
Last Modified: 2012-05-06
Hi experts,

I am writing Python code to process e-mails. This code only processes new e-mails. Whenever it finishes processing a new e-mail, it should update "Status". However, my code fails to do so. Anybody knows how to fix it?

Thanks so much.

mbox = mailbox.mbox('/var/spool/mail/' + user)

                for key, msg in mbox.iteritems():

                        flags = msg.get_flags()
 

                        if 'R' not in flags:

                                # process e-mails here

                                         try:

                                                msg.set_flag('R' + flags)

                                                mbox[key] = msg

                                                msg.flush()

                                        except:

                                                print "error in save 'R' info!"

Open in new window

0
Comment
Question by:davidw88
  • 3
  • 2
5 Comments
 
LVL 3

Accepted Solution

by:
ilalopoulos earned 125 total points
ID: 24373428
two changes at lines 8 and 10:
at line 8 the method name is wrong, the correct is set_flags
at line 10 flush() is a method of mbox and not msg
mbox = mailbox.mbox('/var/spool/mail/' + user)

    for k, msg in mbox.iteritems():

        flags = msg.get_flags()

        if 'R' not in flags:

            # process e-mails here

            try:

                msg.set_flags('R' + flags)

                mbox[k] = msg

                mbox.flush()

            except:

                print "error in save 'R' info!"

Open in new window

0
 

Author Comment

by:davidw88
ID: 24376231
Hi ilalopoulos,

Thanks so much for your reply. Following your suggestions I have modified my code, however this time I got an except "error in save 'R' info!". Further investigation led to the code
mbox.flush()
"Operation not permitted".

I also got this error once "I/O operation on closed file". It seems to me that I should open that mail file explicitely.

I googled online however I did not find a clue how to fix it. Do you have any ideas about this?

Thanks again.
0
 

Author Comment

by:davidw88
ID: 24376338
just fixed it...

thanks ilalopoulos.
0
 
LVL 3

Expert Comment

by:ilalopoulos
ID: 24376361
Check your permission rights to act on the files or execute your script with sudo i.e.:

sudo python your_script.py
0
 
LVL 3

Expert Comment

by:ilalopoulos
ID: 24376374
Glad to be of help, good luck with your project.

John
0

Featured Post

Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

Join & Write a Comment

Strings in Python are the set of characters that, once defined, cannot be changed by any other method like replace. Even if we use the replace method it still does not modify the original string that we use, but just copies the string and then modif…
Article by: Swadhin
Introduction of Lists in Python: There are six built-in types of sequences. Lists and tuples are the most common one. In this article we will see how to use Lists in python and how we can utilize it while doing our own program. In general we can al…
Learn the basics of lists in Python. Lists, as their name suggests, are a means for ordering and storing values. : Lists are declared using brackets; for example: t = [1, 2, 3]: Lists may contain a mix of data types; for example: t = ['string', 1, T…
Learn the basics of while and for loops in Python.  while loops are used for testing while, or until, a condition is met: The structure of a while loop is as follows:     while <condition>:         do something         repeate: The break statement m…

708 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now