def import_item(name):
    """Import and return ``bar`` given the string ``foo.bar``.

    Calling ``bar = import_item("foo.bar")`` is the functional equivalent of
    executing the code ``from foo import bar``.

    Parameters
    ----------
    name : string
      The fully qualified name of the module/package being imported.

    Returns
    -------
    mod : module object
       The module that was imported.
    """
    
    parts = name.rsplit('.', 1)
    if len(parts) == 2:
        # called with 'foo.bar....'
        package, obj = parts
        module = __import__(package, fromlist=[obj])
        try:
            pak = module.__dict__[obj]
        except KeyError:
            raise ImportError('No module named %s' % obj)
        return pak
    else:
        # called with un-dotted string
        return __import__(parts[0])
dataset/ETHPy150Open enthought/depsolver/depsolver/bundled/traitlets/_implementation.py/import_item/original