This Python script will walk a specified sourcedir and copies files it finds and copies them into a specified destination folder subfolder using the file's extension

walkAndOrg.py

from shutil import copyfile

import os
count = 0
destinationdir = ''
sourcedir = ''
for (dirname, dirs, files) in os.walk(sourcedir):
    for file in files:
        filename, file_extension = os.path.splitext(file)
        file_extension = file_extension.strip(".")
        extension_path = destinationdir + '\\' + file_extension
        if (os.path.isdir(extension_path) == False):
            try:
                print ('Creating ' + extension_path)
                os.mkdir(extension_path)
            except:
                print ('Failed to create ' + extension_path)
        try:
            print ('Copying ' + dirname + '\\' + file + ' to ' + extension_path + '\\' + filename)
            copyfile(dirname + '\\' + file,extension_path + '\\' + file)
        except IOError as e:
            print('Unable to copy' + filename + ' to ' + extension_path)