iPython autoreload external python module for assignment notebooks no longer works with Python 3.12

[cyntqliu]

Running

# Some more magic so that the notebook will reload external python modules;
# see http://stackoverflow.com/questions/1907993/autoreload-of-modules-in-ipython
%load_ext autoreload
%autoreload 2

with Python 3.12 results in the following error:

ModuleNotFoundError                       Traceback (most recent call last)
[/tmp/ipython-input-3121226903.py](https://localhost:8080/#) in <cell line: 0>()
     15 # Some more magic so that the notebook will reload external python modules;
     16 # see http://stackoverflow.com/questions/1907993/autoreload-of-modules-in-ipython
---> 17 get_ipython().run_line_magic('load_ext', 'autoreload')
     18 get_ipython().run_line_magic('autoreload', '2')
...
[/usr/local/lib/python3.12/dist-packages/IPython/extensions/autoreload.py](https://localhost:8080/#) in <module>
    119 from importlib import import_module
    120 from importlib.util import source_from_cache
--> 121 from imp import reload
    122 
    123 #------------------------------------------------------------------------------

ModuleNotFoundError: No module named 'imp'

This seems to be because imp was deprecated in 3.12 but available in earlier major versions of Python

[wbrog]

Yes , I found this problem too

[KQPDestiny]

Try changing "from imp import reload" to "from importlib import reload"

[cyntqliu]

Try changing "from imp import reload" to "from importlib import reload"

While we can do that, I think you'd need to make that change every time the notebook is opened, or make a custom runtime with the patch and having every user set up that runtime. Ideally it should "just work"

I actually tried using a Python 3.11 runtime instead but ran into other issues, specifically with the drive mount, so that wouldn't be it.

[xiaofengzia-a]

so how to solve that?

[ethanshadow00]

I encountered the same problem.

[ethanshadow00]

Is it possible to change the Python version in Google Colab?