Installing Python Application

[pplgf]

I am a novice Python user and am hoping to get help installing a program. Please let me know if this is the right place to post.

I got the code here:
https://github.com/CooperRS/decrypt-otpauth-files

This is what I ran in the terminal. I also have IDLE installed, but it is version 3.6.9 and the instructions say 3.7 is a dependency.

pipenv run python3.7 decrypt_otpauth.py decrypt_backup --encrypted-otpauth-backup backup-1.0.otpauthdb

Error:
Traceback (most recent call last):
  File "decrypt_otpauth.py", line 11, in <module>
    from bpylist import archiver
ModuleNotFoundError: No module named 'bpylist'

I know I have multiple versions of Python installed. Not sure if it is important:

ls /usr/bin/python*

Output:
/usr/bin/python       /usr/bin/python3.6          /usr/bin/python3.7m
/usr/bin/python2      /usr/bin/python3.6-config   /usr/bin/python3-config
/usr/bin/python2.7    /usr/bin/python3.6m         /usr/bin/python3m
/usr/bin/python2-pbr  /usr/bin/python3.6m-config  /usr/bin/python3m-config
/usr/bin/python3      /usr/bin/python3.7

Let me know what steps I should try or if I should post output of any other code.

[Larz60+]

Although Idle is included with the python install package, it's a poor editor (not really an IDE)
you should choose another IDE, I recommend VSCode, been using it for several years and it is good.
To install, follow this forum tutorial: VSCode from Start

[pplgf]

Thanks, I will set this up. Is it recommended that I try to run this code from VSCode instead of the terminal?

I tried running it in IDLE and I get a different error message. But I'll set up the VSCode first.

[Larz60+]

VSCode will allow you to run your code, debug it, help with auto complete and much more.
The tutorial explains a lot of this.