import os
import sys

# Change tms tiles to xyz tiles
directory = os.path.dirname(os.path.realpath(sys.argv[0])) #get the directory of your script
for subdir, dirs, files in os.walk(directory):
    for filename in files:
        if filename.find('.png') > 0:
            subdirectoryPath = os.path.relpath(subdir, directory) #get the path to your subdirectory
            filePath = os.path.join(subdirectoryPath, filename) #get the path to your file
            z, x, y = filePath.split('/')
            y = y[:-4]
            z, x, y = int(z), int(x), int(y)
            newy = 2**z - y - 1
            newFilePath = os.path.join(directory, str(z), str(x), str(newy)+'.png')
            print("Changing", os.path.join(subdir, filename), "to", newFilePath)
            os.rename(os.path.join(subdir, filename), newFilePath)