Avoid hard coded paths

[shubhamagarwal92]

I had a bird-eye view of the code that you all are building. I really like the code quality in general. Can we also use pathlib to allow cross-platform python paths? I saw that you are using shell scripts which is really nice. I guess you are already doing that but still. Example tutorial: https://docs.python.org/3/library/pathlib.html

Also please avoid hard-coding paths. Please use relative paths or shell scripts as you probably are already doing.

After today's demo, I am really hopeful that we are going to build a really nice system. So, let's also keep the code clean. :) Please consider this as constructive feedback!

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