'Graph' object has no attribute 'nodes_iter' with networkx 2.x

[nicholasadr]

When running nosetests -v, the following error occurs:

AttributeError: 'Graph' object has no attribute 'nodes_iter'

The error disappeared after downgrading networkx. This works for me:
pip install networkx==1.9.1

[fsuarez6]

Will need some time to make the code compatible with both v1.x and v2.x: https://networkx.github.io/documentation/stable/release/migration_guide_from_1.x_to_2.0.html

I any case, this shouldn't be too much of a problem because the latest version in the Ubuntu repositories is v1.11