Upgrading non-interactive shells

/bin/bash -i

Another thing to do is to list out the available shells on the system

cat /etc/shells

Also check the version of python is installed

which python
python --version

my favorite as usual :xD

python3 -c "import pty;pty.spawn('/bin/bash')"

To set the user path variable

export PATH=/usr/local/sbin:/usr/local/bin:/usr/local/sbin:/usr/bin:/sbin:/bin

This also works

export TERM=xterm
export SHELL=bash