More coding style cleanup

Fixing more issues found with pylint.  Some that were supposed to
have been fixed in the previous sweep (Ie0db839e) but were missed:

C0321: More than one statement on a single line
W0622: Redefining built-in 'name'

And some more:

W0631: Using possibly undefined loop variable 'name'
W0223: Method 'name' is abstract in class 'name' but is not overridden
W0231: __init__ method from base class 'name' is not called

Change-Id: Ie119183708609d6279e973057a385fde864230c3

project.py

@@ -724,17 +724,25 @@ class Project(object):
     paths.sort()
 
     for p in paths:
-      try: i = di[p]
-      except KeyError: i = None
+      try:
+        i = di[p]
+      except KeyError:
+        i = None
 
-      try: f = df[p]
-      except KeyError: f = None
+      try:
+        f = df[p]
+      except KeyError:
+        f = None
 
-      if i: i_status = i.status.upper()
-      else: i_status = '-'
+      if i:
+        i_status = i.status.upper()
+      else:
+        i_status = '-'
 
-      if f: f_status = f.status.lower()
-      else: f_status = '-'
+      if f:
+        f_status = f.status.lower()
+      else:
+        f_status = '-'
 
       if i and i.src_path:
         line = ' %s%s\t%s => %s (%s%%)' % (i_status, f_status,