undelcared ipython dependency

[jbogaardt]

Are you on the latest chainladder version?

• Yes, this bug occurs on the latest version.

Describe the bug in words

display.py has IPython.display imported to support type-hinting. Unfortunately, the core package install doesn't declare this dependency so users are reporting failure unless they separately install ipython. We need to determine whether adding the ipython dependency to chainladder is worth the extra dependency simply for type-hinting.

How can the bug be reproduced?

importing chainladder causes:
File "/usr/local/lib/python3.12/site-packages/chainladder/core/display.py", line 6, in
import IPython.display
ModuleNotFoundError: No module named 'IPython'

What is the expected behavior?

it should not do this

[bayesflows]

Hello,
I'd like to work on this issue to begin a friendly ticket to join your community.
Could you assign it to me ?

[kennethshsu]

Hi @bayesflows, that would be amazing! Are you able to self assign the ticket?

It's all yours!

[bayesflows]

Hi @kennethshsu, I don't seem to have permission to self-assign the ticket yet.
Could you please assign it to me? Thanks!

[kennethshsu]

You got it!

I'll look into why...

[bayesflows]

Thank you @kennethshsu