importlib error with create_api

[bjarthur]

the code below is straight out of the README. i think you just need to add from importlib import util to api.py

Python 3.11.4 | packaged by conda-forge | (main, Jun 10 2023, 18:08:17) [GCC 12.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import portion
>>> class IntInterval(portion.AbstractDiscreteInterval):
...     _step = 1
... 
>>> D = portion.create_api(IntInterval)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/arthurb@hhmi.org/bin/mambaforge/envs/pyinterval/lib/python3.11/site-packages/portion/api.py", line 64, in create_api
    module = importlib.util.module_from_spec(
             ^^^^^^^^^^^^^^
AttributeError: module 'importlib' has no attribute 'util'

i would tell you what version of portion i'm using, but __version__ is not defined:

>>> portion.__version__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'portion' has no attribute '__version__'

[AlexandreDecan]

Hello,

Thanks for having reported this issue! It seems it's a "bad practice" I wrongly followed... :-) See https://bugs.python.org/issue41958

I'll try to release a fix ASAP, you're right, import importlib.util should do the trick. I don't know why this bug hasn't been catched by the tests....

[AlexandreDecan]

Ok, I got why the bug wasn't catched by our test: importlib.util was imported by another module (likely pytest or a dependency) making util available in importlib without an explicit import on our side.

I'll release a fix soon.