Import error from within python module

I'm trying to use a python module within Sikuli IDE. I've added the site-packages path to sites.txt, as per the documentation. So the module is found.
But when the module tries to import other python modules (from the standard library), there's an error. I tried importing the dependent modules manually, and it works for BytesIO in the IO library, but not for zip_longest in the itertools library.

import io # mutagen requires the BytesIO module in the IO Library
from io import * # saw this in a previous answer from Raiman on importing modules
import mutagen # no error - the package is found
import itertools
from itertools import * # trying to pre-import zip_longest before the next line
from mutagen.wave import WAVE # this is where the error occurs

[error] script [ audio ] stopped with error in line 6
[error] ImportError ( cannot import name zip_longest )
[error] --- Traceback --- error source first
line: module ( function ) statement
11: _tags ( <module> ) from itertools import zip_longest
19: _file ( <module> ) from ._tags import ID3Tags, ID3Header, ID3SaveConfig
32: __init__ ( <module> ) from ._file import ID3, ID3FileType, delete, ID3v1SaveOptions
16: wave ( <module> ) from mutagen.id3 import ID3
6: main ( <module> ) from mutagen.wave import WAVE
[error] --- Traceback --- end --------------

Note, I've tried the code in the Python environment (command prompt) and it works. Do I need to point Sikuli to the python standard library?