add requirements file
main on top (it is the first function to read, I don't want to scroll) and arguments in a separate function (separation of concerns)
removed unused import statements
removed useless comment
defining __init__ on top is a common best practice
space around operators and after commas (PEP8)
PEP8 suggests to avoid multiple import on the same line
no need to import the whole module
Ordered imports. Too broad exception for import serial, replaced quit() with sys.exit()
Return result of comparison instead of True/False
Replaced print statement with print function. Why don't be python3 compliant ?
All configurations inside init.
device was not defined inside set_baud
Merge pull request #1 from sgs00/master

Some PEP8 improvements