Move map tiles from "OpenLayers" system to TMS system

relocate_tiles.py

import os
import shutil

class FilesystemDiver(object):
    """crawls the filesystem and extracts
    filepath and filenames information"""

    def __init__(self, path):
        self.path = path

    def get_folders_in_filepath(self):
        return [f for f in os.listdir(self.path)
            if not os.path.isfile(os.path.join(self.path, f))]

    def yield_filepath_info(self):
        """yields a tuple with filepath and filenames"""
        for root, dirs, files in os.walk(self.path):
            yield (root, dirs, files)
#            if root.find('design') != -1:
#                pdfs = [f for f in files if f.find('.pdf') != -1]
#                yield (root, pdfs)



def reformat(list):
    z = str(int(list[0]))
    x = "%i%i%i" % ( int(list[1]), int(list[2]), int(list[3]) )
    y = "%i%i%i" % ( int(list[4]), int(list[5]), int(list[6]) )
    #print y, 2 ^ int(z) - 1 - int(y)
    #y =  2 ^ int(z) - 1 - int(y)
    return [int(z), int(x), int(y)]

def rewrite(file, reformatted):
    new_dir = 'osm/' + str(reformatted[0]) + '/' + str(reformatted[1])
    file = os.path.join(os.getcwd(), file)
    new_file = os.path.join(os.getcwd(), new_dir + '/' + str(reformatted[2]) + '.png')
    if not os.path.exists(new_dir):
        os.makedirs(new_dir)

#    print file
#    print new_dir + '/' + str(reformatted[2]) + '.png'
#    print
#
    #shutil.copyfile(file, new_file)
    shutil.move(file, new_file)

#    try:
#
#        print 'found file'
#    except IOError:
#        print IOError


filesystem = FilesystemDiver('osm_cache_EPSG4326')
counter_a = 0
counter_b = 0
for info in filesystem.yield_filepath_info():
    for f in info[2]:
        file = info[0] + '/' +f
        r = info[0].replace('osm_cache_EPSG4326', '')
        f = f.replace('.png', '')
        full_path = r + '/' + f
        full_path_list = full_path.split('/')[1:]
        reformatted = reformat(full_path_list)
        rewrite(file, reformatted)
        #print reformatted, file