sudo pip install --upgrade pip
(sudo) python -m pip install requests==2.11.1 paramiko==2.0.0 jsonschema==2.5.1 tabulate==0.7.7

Note:
- For Windows, you need to execute this in CMD Window or PowerShell Window opened with Administrator permissions.
- Once the above prequisites are installed, make sure to upgrade your PATH so that Eclipse will not have any issues launching ant, java, python executables.