Not installing for V2.5

[nashraraza]

I am trying to install this lib for PYNQ _ Z1 with V2.5 image and it is not installing. The error is:
fatal: unable to access 'https://github.com/Xilinx/PYNQ-ComputerVision.git/': Could not resolve host: github.com
Command "git clone -q https://github.com/Xilinx/PYNQ-ComputerVision.git /tmp/pip-gzp92h4g-build" failed with error code 128 in None