@P_Suresh_Rao The reason on your ask is as per my guess is that QuickStart VM don't have internet access.
If yes then you can download packages externally and then copy into QuickStart and install something like:
$ sudo yum update
$ sudo yum install yum-utils
You can then install the CentOS IUS package which will get you up to date with their site:
$ sudo yum install https://centos7.iuscommunity.org/ius-release.rpm
Finally you can then install Python and Pip:
Cheers!
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