Hi,

  The website I deal with uses file based sessions, and there is no logging 
in of users or anything like that.  Most of the time, no data is put into 
the session, and the session expiry time is not explicitly set in the 
code.  I've set SESSION_COOKIE_AGE to 48 hours, and so I'd expect the 
session files to be deleted after 48 hours.

But "clearsessions" is not causing the old sessions to be deleted, and so 
I'm wondering if I overlooked something I should have implemented in the 
code etc. Should session.set_expiry always be explicitly called?  
SESSION_EXPIRE_AT_BROWSER_CLOSE is True, so I expected SESSION_COOKIE_AGE 
to act as the determining factor when session files would get deleted (when 
'clearsessions' gets called)

But looking at the code for the admin 'clearsessions' command (base.py and 
file.py) and the code related to file based sessions, it seems 
SESSION_COOKIE_AGE will always get returned from get_expiry_age in this 
situation, and thus the check to see if the expiry_age is negative always 
fails, and so the file is never deleted

My gut says load() in django/contrib/sessions/backend/file.py needs to be a 
little more sophisticated in determining the actual age of the file 
relative to what is returned from get_expiry_age.

Or am I just wrong in assuming sessions ought to be cleaned up 
automatically in this case?

thanks
Doug



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