Even more coding style cleanup

Fixing some more pylint warnings:

W1401: Anomalous backslash in string
W0623: Redefining name 'name' from outer scope
W0702: No exception type(s) specified
E0102: name: function already defined line n

Change-Id: I5afcdb4771ce210390a79981937806e30900a93c

color.py

@@ -36,7 +36,8 @@ ATTRS = {None     :-1,
          'blink'  : 5,
          'reverse': 7}
 
-RESET = "\033[m"
+RESET = "\033[m"  # pylint: disable=W1401
+                  # backslash is not anomalous
 
 def is_color(s):
     return s in COLORS
@@ -51,7 +52,7 @@ def _Color(fg = None, bg = None, attr = None):
 
     if attr >= 0 or fg >= 0 or bg >= 0:
       need_sep = False
-      code = "\033["
+      code = "\033["  #pylint: disable=W1401
 
       if attr >= 0:
         code += chr(ord('0') + attr)