AttributeError: module 'scipy.sparse' has no attribute 'coo_array'

Question

Getting this error in my Jupyter Notebook What would be the best way to fix this utilizing conda instead of pip

I've attempted conda upgrade --all and that didnt seem to work

Answer 1

The scipy.sparse.*_array functions were introduced with v1.8. The networkx package started requiring scipy >=1.8 with v2.7. So, either upgrade SciPy

conda install 'scipy>=1.8'

or downgrade NetworkX:

conda install 'networkx<2.7'

Part of the issue here is that, at the recommendation of a networkx developer, Conda Forge stopped explicitly requiring scipy as a dependency of networkx, and therefore there is no longer any constraint. I opened an issue on the feedstock to revisit coinstallation constraints (run_constrained specifications).

Answer 2

As mentioned in this Github comment, I was trying to calculate the page rank (networkx.pagerank) of a graph on Google Colab when I encountered the same error. After executing the following code, the issue was resolved for me:

!pip install --upgrade scipy networkx

A Side Note: pip install refers to installing packages and leave the package as-is if it is already installed. But the --upgrade flag instructs pip to uninstall anything which is being upgraded/replaced. For more info on this, refer this official doc.