when does import module at bottom of file
Question: when I read a file `riak-python-client/riak/riak_object.py`. At the bottom of
the file, I saw this

    
    
    from mapreduce import *
    

what's it use for? Why just import at the top of the file.


Answer: This is designed to put all of the module `mapreduce` in the `riak_object`
namespace. If you put this import at the top of `riak_object.py`, then there
would be an error because `mapreduce` imports `RiakObject` from `riak_object`,
which is not defined yet.

