* remove call to sys.setdefaultencoding
  default encoding is 'utf-8' by default in Python 3

* remove use of statvfs
  statvfs does not exist in python 3

* TODO was fixed in af6ce2e

* Remove unused function

* flake fixes

* Fix unicode encoding error

* Use a list to iterate over, supporting Python 3

* Encode 'str' instance into 'utf-8'

Co-authored-by: Aniket21mathur <aniketmathur320@gmail.com>