Making sudo pip use a different HOME

Test whether or not sudo is using the environment you expect by creating a small test script with echo $HOME for instance, and then running it as sudo bash test.sh. Note that testing the environment with sudo echo $HOME will not work, as bash expands $HOME before the command gets hit with sudo. The best way to get sudo to use the environment you want for a one-time job is to simply supply the environment variable while executing: sudo HOME=/home/praveen pip3 install numpy. For a more permanent solution, edit the /etc/sudoers file using sudo visudo.