something very strange happened when I tried to import Python's GPIO library into a program. I got the follwowing erro message.
Traceback (most recent call last):
File "<pyshell#0>", line 1, in <module>
import RPi.GPIO as GPIO
SetupException: No access to /dev/mem. Try running as root
I just installed the library. I would Like to know what the problem is and how to solve it