application = tkinter.Tk()
path = os.path.join(os.path.dirname(__file__), "images/")
if sys.platform.startswith("win"):
    icon = path + "bookmark.ico"
    application.iconbitmap(icon, default=icon)
else:
    application.iconbitmap("@" + path + "bookmark.xbm")
window = MainWindow(application)
application.protocol("WM_DELETE_WINDOW", window.fileQuit)
application.mainloop()

serrrgggeee@serrrgggeee-Satellite-L40 ~/Загрузки/pyt/py3eg $ python3 bookmarks-tk.pyw
Traceback (most recent call last):
  File "bookmarks-tk.pyw", line 338, in <module>
    application.iconbitmap("@" + path + "bookmark.xbm")
  File "/usr/lib/python3.3/tkinter/__init__.py", line 1640, in wm_iconbitmap
    return self.tk.call('wm', 'iconbitmap', self._w, bitmap)
_tkinter.TclError: error reading bitmap file "images/bookmark.xbm"

#define bookmark_width 32
#define bookmark_height 32
static unsigned char bookmark_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x0f, 0x00, 0x00, 0xfe, 0x7f, 0x00,
   0x00, 0xff, 0xff, 0x00, 0xc0, 0xff, 0xff, 0x03, 0xe0, 0xff, 0xff, 0x07,
   0xf0, 0xff, 0xff, 0x0f, 0xf0, 0xff, 0xff, 0x0f, 0xf8, 0xff, 0xff, 0x1f,
   0x8c, 0x1f, 0x30, 0x3e, 0x8c, 0x3f, 0x30, 0x3e, 0x0c, 0x32, 0x20, 0x3e,
   0x0e, 0xf0, 0x3d, 0x7e, 0x0e, 0xe0, 0x3f, 0x7c, 0x0f, 0x09, 0x30, 0x40,
   0x0f, 0x1f, 0x20, 0x00, 0x0f, 0x32, 0x30, 0x40, 0x0f, 0xf0, 0x37, 0x5a,
   0x0e, 0xe0, 0x3f, 0x7e, 0x8e, 0x14, 0x30, 0x7c, 0x0e, 0x1f, 0x30, 0x7e,
   0x8c, 0x1f, 0x20, 0x3e, 0xbc, 0x7f, 0x69, 0x3d, 0xf8, 0xff, 0xff, 0x1f,
   0xf0, 0xff, 0xff, 0x0f, 0xf0, 0xff, 0xff, 0x0f, 0xe0, 0xff, 0xff, 0x07,
   0xc0, 0xff, 0xff, 0x03, 0x00, 0xff, 0xff, 0x00, 0x00, 0xfe, 0x7f, 0x00,
   0x00, 0xf8, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00 };