Recursively rename files to their parent folder’s name

rename.py

import os
 
'''
 from http://www.salemmarafi.com/code/recursively-rename-files-to-their-parent-folders-name/
 Function: renameFiles
 Parameters: 
    @path: The path to the folder you want to traverse
    @depth: How deep you want to traverse the folder. Defaults to 99 levels. 
 
'''
 
def renameFiles(path,  depth=99):
    # Once we hit depth, return
    if depth < 0: return
 
    # Make sure that a path was supplied and it is not a symbolic link
    if os.path.isdir(path) and not os.path.islink(path):
     # We will use a counter to append to the end of the file name
     ind = 1
 
     # Loop through each file in the start directory and create a fullpath
     for file in os.listdir(path):
       fullpath = path + os.path.sep + file
 
       # Again we don't want to follow symbolic links
       if not os.path.islink(fullpath):
 
         # If it is a directory, recursively call this function 
         # giving that path and reducing the depth.
         if os.path.isdir(fullpath):
           renameFiles(fullpath, depth - 1)
         else:
           # Find the extension (if available) and rebuild file name 
           # using the directory, new base filename, index and the old extension.
           extension = os.path.splitext(fullpath)[1]
 
           # We are only interested in changing names of images. 
           # So if there is a non-image file in there, we want to ignore it
           if extension in ('.jpg','.jpeg','.png','.gif'):
 
             # We want to make sure that we change the directory we are in
             # If you do not do this, you will not get to the subdirectory names
             os.chdir(path)
 
             # Lets get the full path of the files in question
             dir_path =  os.path.basename(os.path.dirname(os.path.realpath(file)))
 
             # We then define the name of the new path in order
             # The full path, then a dash, then 2 digits, then the extension
             newpath = os.path.dirname(fullpath) + os.path.sep   + dir_path \
             + ' - '+"{0:0=2d}".format(ind) + extension
 
             # If a file exists in the new path we defined, we probably do not want
             # to over write it. So we will redefine the new path until we get a unique name
             while os.path.exists(newpath):
                ind +=1
                newpath = os.path.dirname(fullpath) + os.path.sep   + dir_path \
                + ' - '+"{0:0=2d}".format(ind) + extension
 
             # We rename the file and increment the sequence by one. 
             os.rename(fullpath, newpath)
             ind += 1
    return
 
renameFiles(os.getcwd())