How can I read serial data off the digi connect wi-sp?

import os
serfd = ‘/com/0’, os.O_RDWR |os.O_NONBLOCK)
data =, 64)
print data

When I run my python program with the code above on the digi connect wi-sp I get the following error:

OS Error: [Errrno 16] Device or resource busy: ‘/com/0’

I tried using com/1 and com/2 but it says no such device.

How can I read serial data from the digi connect wi-sp?

Is this NET+OS or PlugNPlay?