I have improved the readability of the code by fixing the
problems that flake8 reported.
The type of errors that are fixed are:
* H302 - Import only module
* H305 - Import not grouped correctly
* H307 - Like imports shoud be grouped together
* H402 - One line docstring needs punctation
* F821 - Undefined name
Change-Id: I3a7f12120b6a99342a3d2025206edcdc0f6a4a93
Signed-off-by: Costin Galan <cgalan@cloudbasesolutions.com>