Bugs, indent problems and re returning. #61
Description
MCP230xx.py file has multiple indent problems (STILL),
Adafruit_MCP230XX.output() has two returns and if the if statements are false, can't return. (referencing before assingment)
Adafruit_MCP230XX.input() returns the "value" which may be referenced before assingment.
Adafruit_MCP230XX.pullup() has a variable called "lvalue" which does nothing and the function is not working properly.
MCP230XX_GPIO class should be in a different branch. It's just a useless proxy for now.
Whole script is not compatible PEP8 standards, nor with Zen (PEP20). It designed well but coded poorly. I may commit but have no time, This is just a warning for developers. (Especially to KTOWN who committed "Fixed indents", can't you just use regex to find \t characters and replace them with four spaces?)
"Errors should never pass silently.
Unless explicitly silenced." Zen of Python.
Regards.