Delete ThermalPrinterAttributeError exception: attributes is_online, is_sleeping, lines, feeds and max_column now raise AttributeError when trying to set them
Fix the use of deprecated inspect.getargspec()
Add test to ensure image() works with path-like objects
ThermalPrinterAttributeErrorexception: attributesis_online,is_sleeping,lines,feedsandmax_columnnow raiseAttributeErrorwhen trying to set theminspect.getargspec()image()works with path-like objects