rename files for transfer to ipad

gistfile1.py

import os

upDir = '/Users/sambao21'
rootDir = '{0}/ipad_pics'.format(upDir)
y = 100
for dirName,subdirList,fileList in os.walk( rootDir ) :
  print "Found directory:" , dirName
  x = 0
  for fname in fileList:
    path = dirName + '/'
    if 'jpg' in fname.lower():
      new_fname = "IMG_%.4d.jpg" % x
      print "* {0}{1} -> {0}{2}".format(path, fname, new_fname)
      os.rename('{0}{1}'.format(path,fname), '{0}{1}'.format(path,new_fname))
      x += 1
    else:
      print '- {0}{1}'.format(path, fname)
      os.remove('{0}{1}'.format(path, fname))
  if dirName != rootDir:
    newdir = 'CANON%.3d' % y
    newpath = '{0}/{1}'.format(rootDir, newdir)
    print '### {0} -> {1}'.format(dirName, newpath)
    os.rename(dirName, newpath)
    y += 1
  print