Added the linting in few of the modules of the codebase

[utkarshverma11]

Hi @hatarist,

There are some linting fixes that I noticed while going through the codebase. Linting highlights the syntactical and and stylist problems which oftentimes helps to identify and correct subtle programming errors.

Details about the linter used Used autopep8 python linter from within spyder editor

Fixed the following during the static code analysis: Covention Refractor Warnings Errors

Could you please review the fixes and let me know if they look fine then will go ahead and work on other modules that require linting.

Happy Linting ! :)

Thanks