$ python
Python 3.6.4 (default, Jan  5 2018, 02:35:40)
[GCC 7.2.1 20171224] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import importlib
>>> importlib.util.find_spec
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'importlib' has no attribute 'util'
>>> help("importlib")

>>> importlib.util.find_spec
<function find_spec at 0x7f5f24bc4048>
>>>