bitbake/lib/bb/data.py:

bitbake/lib/bb/data.py:
    -Only have one expand method in the dict
     implementation.
    -Apply some magic knowledge by feeding the
     cookie master.
    -Speed up update_data by asking the Cookie
     Monster for help.
     We do not iterate over each key, but the
     keys we know that have the data we care
     about. This gives a huge speed improvement
     to parsing.

bitbake/lib/bb/data_smart.py:
    -Make setVar more expensive by feeding the cookie
     monster