Remove Python 2 packages
# apt-get remove --purge -y python-dev python-pip
Install Python 3 packages
# apt-get install -y python3 python3-dev python3-pip
Install Python Packages
# cd /opt/netbox
# pip3 install -r requirements.txt
Gunicorn Update
# pip uninstall gunicorn
# pip3 install gunicorn
Re-install LDAP Module (optional if using LDAP for auth)
sudo pip3 install django-auth-ldap