Utility functions for loading modules, supporting programmatic imports of types:
>>>from import_utils import import_module_from, import_module
>>>import x as mod_x
>>>mod_x = import_module('x')
>>>
>>>import x.y as mod_xy
>>>mod_xy = import_module('x.y')
>>>
>>>from x.y import z
>>>z = import_module_from('x.y.z')