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/ply/lex.py

@@ -705,11 +705,7 @@ class LexerReflect(object):
 
         # Sort the functions by line number
         for f in self.funcsym.values():
-            if sys.version_info[0] < 3:
-                f.sort(lambda x,y: cmp(func_code(x[1]).co_firstlineno,func_code(y[1]).co_firstlineno))
-            else:
-                # Python 3.0
-                f.sort(key=lambda x: func_code(x[1]).co_firstlineno)
+            f.sort(key=lambda x: func_code(x[1]).co_firstlineno)
 
         # Sort the strings by regular expression length
         for s in self.strsym.values():

bitbake/lib/ply/yacc.py

@@ -1205,7 +1205,7 @@ class Production(object):
 
         # Precompute the list of productions immediately following.  Hack. Remove later
         try:
-            p.lr_after = Prodnames[p.prod[n+1]]
+            p.lr_after = self.Prodnames[p.prod[n+1]]
         except (IndexError,KeyError):
             p.lr_after = []
         try: