where is best place for import statements?

[Matthew Wilson]

> Your cure would probably solve the problem, but I
> consider it much worse than the disease of having
> to remember to stick the proper import statement
> at the front of the module. You'll get at most one
> error in each module where you forget to do that.
> 
> In general, importing a module at other than the
> module level is something you do in very specialized
> circumstances: when you need either a dynamic or
> a conditional import.
> 
> John Roth

So, instead of scattering all those import statements throughout my
file, I ought to just put them at the top of the file, right after the
module description?

And, if I decide to do something like

from mymod import Circle

Then it's up to me to remember to first do

import math

Is that right?