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Hi I am new to this forum. I am trying to use python-periphery library to use the pins on the board. if I do : from periphery import GPIO gpio3 = GPIO(3,"in") I get the following error: Traceback (most recent call last): File "/usr/local/lib/python3.7/dist-packages/periphery/gpio.py", line 1017, in _open with open("/sys/class/gpio/export", "w") as f_export: PermissionError: [Errno 13] Permission denied: '/sys/class/gpio/export' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/home/linaro/Desktop/temp_hum.py", line 7, in <module> gpio3 = GPIO(3,"in") File "/usr/local/lib/python3.7/dist-packages/periphery/gpio.py", line 999, in __init__ self._open(line, direction) File "/usr/local/lib/python3.7/dist-packages/periphery/gpio.py", line 1020, in _open raise GPIOError(e.errno, "Exporting GPIO: " + e.strerror) periphery.gpio.GPIOError: [Errno 13] Exporting GPIO: Permission denied Any Idea how to solve this?