find_oldest.py

   1 #! /usr/bin/env python
   2 """Count shown files; display the date of oldest file
   3
   4 This file is a part of XSetBg.
   5
   6 """
   7
   8 __version__ = "$Revision$"[11:-2]
   9 __revision__ = "$Id$"[5:-2]
  10 __date__ = "$Date$"[7:-2]
  11
  12 __author__ = "Oleg Broytman <phd@phdru.name>"
  13 __copyright__ = "Copyright (C) 2006-2010 PhiloSoft Design"
  14 __license__ = "GNU GPL"
  15
  16 import os, shelve
  17 from time import localtime, asctime
  18
  19 xsetbg_dir = os.path.join(os.environ["HOME"], "lib", "xsetbg")
  20 os.chdir(xsetbg_dir)
  21
  22 global_db_name = "xsetbg.db"
  23
  24 count = 0
  25 oldest = None
  26
  27 global_db = shelve.open(global_db_name, flag='r')
  28 for key in global_db.keys():
  29    count += 1
  30    if key.startswith('/') and ((oldest is None) or (global_db[key] < oldest)):
  31       oldest = global_db[key]
  32 global_db.close()
  33
  34 print count, "files"
  35 print "Oldest:", asctime(localtime(oldest))