Python: check whether a network interface is up

Question

In Python, is there a way to detect whether a given network interface is up?

In my script, the user specifies a network interface,

Answer 1

If the question is about checking if the cable is conencted (FreeBSD);

[status for status in run.cmd(' /usr/local/bin/sudo ifconfig %s ' % interface).split("\t") if status.strip().startswith("status")][0].strip().endswith("active")

For this, no api support so far :( ...