code: def __recursive_import(module_name):
      
      names = module_name.split(".")
      path = None
      module = None
      while len(names) > 0:
          if module:
              path = module.__path__
          name = names.pop(0)
          (module_file, pathname, description) = imp.find_module(name, path)
          module = imp.load_module(name, module_file, pathname, description)
      return module
docs: Recursively looks for and imports the names, returning the
      module desired
  
      >>> __recursive_import("sprinter.formula.unpack") # doctest: +ELLIPSIS
      <module 'unpack' from '...'>
  
      currently module with relative imports don't work.