compatibility with PyMC 5: AttributeError: module 'pymc' has no attribute 'distributions'

[mohammedzufyan-ops]

Describe the bug
After updating to PyMC 5.23.0, importing pymc_extras gives:
AttributeError: module 'pymc' has no attribute 'distributions'

To Reproduce

import pymc_extras

[Jiya873]

Hi @mohammedzufyan-ops,

I wanted to help fix this issue, so I attempted to reproduce it locally.

I set up a fresh environment on Windows with PyMC 5.26.1 (the latest version) and installed pymc-extras directly from the main branch. When I ran import pymc_extras, I did not get the AttributeError. It imported successfully for me.

I also inspected the pymc_extras/__init__.py file in the current main branch, and it appears the code has already been updated to handle the changes in PyMC 5.x.

It is possible that the fix is merged in main but hasn't been released to PyPI yet (so pip install pymc-extras might still pull the broken version). You could try installing directly from the source to see if that resolves the error for you:

Let me know if that works!

[ricardoV94]

I don't think there was any bug, sounds like an installation issue where python finds an empty pymc folder in site-packages (either bad installation or incomplete uninstall) and then you get errors like that. Seen it a couple of times. Usually requires manual deleting of the folder and reinstalling

[Jiya873]

Thanks @ricardoV94 for the clarification.

Since I couldn’t reproduce this error in a clean environment with the latest PyMC and pymc-extras from main, it does seem likely this is due to a local install issue rather than a compatibility problem.

@mohammedzufyan-ops, you can check if there’s a leftover or partially installed pymc folder in site-packages. Removing it manually and reinstalling PyMC in a fresh environment should fix this kind of error.