Unable to login for Bolt Python library

i am a old user of virtual machine, so i already have VM software and Ubuntu in it (version 17.10) when i tried with the below code i was not able to update Boltiot to use my own server.
sudo apt-get -y update
please help me with this.

Hi @nikhilbalakrishna5,

Can you share the screenshot of the error? Also try the below commands.

sudo apt-get update
sudo apt-get install python3-pip  
sudo pip3 install boltiot