[BUG] Version 2.3.0 not working on Google Colab

[aymenkhs]

Description

Import fails in Colab in latest version

In which platform does it happen?

Google Colab

How do we replicate the issue?

Install Cornac 2.3.0 using !pip install cornac==2.3.0 and import any part of the library.

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
[<ipython-input-2-2713bf83a8d2>](https://localhost:8080/#) in <cell line: 1>()
----> 1 import cornac

6 frames
[/usr/local/lib/python3.10/dist-packages/cornac/models/bpr/__init__.py](https://localhost:8080/#) in <module>
     14 # ============================================================================
     15 
---> 16 from .recom_bpr import BPR
     17 from .recom_wbpr import WBPR

ImportError: /lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.32' not found (required by /usr/local/lib/python3.10/dist-packages/cornac/models/bpr/recom_bpr.cpython-310-x86_64-linux-gnu.so)

---------------------------------------------------------------------------
NOTE: If your import is failing due to a missing package, you can
manually install dependencies using either !pip or !apt.

To view examples of installing some common dependencies, click the
"Open Examples" button below.
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Expected behavior

The import should work normally

Other Comments

The following notebook shows the error : Notebook link

[qtuantruong]

This is very tricky because some models of Cornac complied using gcc13 where Google Colab env doesn't have required libs installed. So, the solution is as follows:

1. Run the following to install latest libstdc++6:

!sudo add-apt-repository ppa:ubuntu-toolchain-r/test
!sudo apt-get update
!sudo apt-get install --only-upgrade libstdc++6

2. Run the following and make sure you see GLIBCXX_3.4.32 in the output:

!strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBCXX

3. Restart Colab (Runtime -> restart session)
4. Try import cornac again and see if it works