bitbake: lib: fix most undefined code picked up by pylint

Correctly import, and inherit functions, and variables.
Also fix some typos and remove some Python 2 code that isn't recognised.

(Bitbake rev: b0c807be5c2170c9481c1a04d4c11972135d7dc5)

Signed-off-by: Frazer Clews <frazerleslieclews@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/ncurses.py

@@ -48,6 +48,8 @@ import bb
 import xmlrpc.client
 from bb.ui import uihelper
 
+logger = logging.getLogger(__name__)
+
 parsespin = itertools.cycle( r'|/-\\' )
 
 X = 0