[Tutor] Help listing directory timestamps and deleting directories

[Karim]

Hello,

Also working w/o external module just the standard one:

*>>> import datetime
 >>> remove_after = datetime.datetime.now() - datetime.timedelta(days=31)
 >>> remove_after
datetime.datetime(2010, 12, 24, 23, 21, 10, 11315)
*
Regards
Karim

On 01/24/2011 08:02 PM, Vince Spicer wrote:
>
>
> On Mon, Jan 24, 2011 at 11:25 AM, bsdwiz at gmail.com 
> <mailto:bsdwiz at gmail.com> <bsdwiz at gmail.com <mailto:bsdwiz at gmail.com>> 
> wrote:
>
>     Hi, hoping for some help here. I've been trying to write a python
>     script (complete newb) and have spent several days trying to get
>     this right with no success.
>
>     I am trying to list timestamps in a directory and if they are
>     older than x amount of days delete the directories. It seems that
>     in my for loop it is only evaluating the last timestamp of the
>     last directory and using that timestamp to make the deletion
>     decision. I realize that this script isn't going to delete the
>     directories with evaluate as true but I haven't been able to get
>     that far yet...
>
>
>
>     ###########start script##############
>     ###Modules###
>
>     import os
>     import time
>
>     ###Global Variables###
>
>     curr_t = time.time()
>
>     days = 2629743 #2629743 is 30 days in epoch time.
>
>     directory=os.path.join("/home", "userid", "python")
>
>
>     for r,d,f in os.walk(directory):
>         for dir in d:
>             timestamp = os.path.getmtime(os.path.join(r,dir)) ## It
>     seems that the below "if" statement is only comparing the
>     timestamp of the last directory that this variable lists.
>             print timestamp
>             if curr_t - days < timestamp:                  #### I am
>     expecting this statement to compare each timestamp of the
>     "directory" variable and print out if it should be deleted or not.
>                 print "Your file will be deleted"
>
>             else:
>                 print "File will NOT be deleted..."
>
>
>     #######################end of script#############################
>
>
>
>     Thank you for your time!
>
>     _______________________________________________
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>
>
> First off, I would recommend using dates and not times, this can help 
> make things clearer
> when dealing with dates, also the dateutil module can make date math a 
> lot simpler (easy_install dateutil)
>
>
> from datetime import datetime
> from dateutil.relativedelta import relativedelta
>
> remove_after = datetime.now() - relativedelta(days=31)  # exactly 1 
> month prior to today
> check_dir = "/path/to/whatever"
>
> for r,d,f in os.walk(check_dir):
>     for dir in d:
>         loc = os.path.join(r,dir)
>         last_modified = datetime.fromtimestamp(os.path.getmtime(loc))
>         if last_modifed < remove_after:
>             print "delete old directory", loc
>         else:
>             print "keep recently modified", loc
>
>
>
> Hope this helps,
>
> Vince Spicer
> Developer
>
>
>
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