I want to install pyserial on python based on tomato. But when I run python setup.py, it displayed: Traceback (most recent call last): File "setup.py", line 14, in <module> from distutils.core import setup ImportError: No module named distutils.core So how can I install this module? Or is there a "green" way to install this module? I mean, someone install it and then copy the installed programs to me. I copy it to my python and use it. Is it possible? I just want to send AT command to control the 3G network card. So is there any other way to do it? I must do the program in python. Thanks!