Dictionary methods
>>> adict.has_key(key)
Return 1 if key in list of keys, else 0
>>> adict.update(bdict)
Add the contents of bdict to adict
>>> adict.get(key, default)
If key in adict return adict[key], else return default
>>> adict.keys()
>>> adict.values()
>>> adict.items()
Return list of keys, list of values, or list of items (key-value pairs)