non-root install script throws error in ubuntu16

Steps:

1. Login as nonroot user to a ubuntu16 aws machine
2. git clone non root install script
3. Try to run help on the script:

ubuntu@ip-172-31-43-238:~/cb-non-package-installer$ ./cb-non-package-installer -h
File "./cb-non-package-installer", line 58
error(f'Could not get version from Package name

')
^
SyntaxError: invalid syntax

Environment:

ubuntu@ip-172-31-43-238:~/cb-non-package-installer$ uname -a
Linux ip-172-31-43-238 4.4.0-1109-aws #120-Ubuntu SMP Fri Jun 5 01:26:57 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@ip-172-31-43-238:~/cb-non-package-installer$ cat /etc/*elease
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.6 LTS"
NAME="Ubuntu"
VERSION="16.04.6 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.6 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial