Old code:
for x in y:
f(x)
New Code:
map(f, y)
Also use defaultdict instead of simple dict when advantageous and use list comprehensions
instead of for loops where map() could be used but requires lambdas.
svn: r14135
Introduces the concept of callman.py as one single way to follow handles an
interface is interested in.
dbguielement.py contains a small base class using that, usable for all windows/
guielements that need to track database changes to handles
svn: r12881
