'Copy image files to qutebrowser/html/doc.'

def _copy_images(self):

    print 'Copying    files...'
    dst_path = os.path.join('qutebrowser', 'html', 'doc', 'img')
    try:
        os.mkdir(dst_path)
    except FileExistsError:
        pass
    for filename in ['cheatsheet-big.png', 'cheatsheet-small.png']:
        src = os.path.join('doc', 'img', filename)
        dst = os.path.join(dst_path, filename)
        shutil.copy(src, dst)
