# easy_install pip
References :
python - How do I fix 'ImportError: cannot import name IncompleteRead'? - Stack Overflow
fuser 8080/tcpkill
fuser -k 8080/tcp
# echo "1-4.4.4" > /sys/bus/usb/drivers/usb/unbindpower on
# echo "1-4.4.4" > /sys/bus/usb/drivers/usb/bind