Using constraint and hierarchy on GraphC: AttributeError: 'GraphC' object has no attribute 'is_multigraph'

[tddschn]

Error was encountered when running eg.constraint and eg.hierarchy on an GraphC object representing the karate club dataset.

Info

OS: macOS Monterey 12.4, Intel

python: CPython 3.9.13

Python 3.9.13 (main, May 24 2022, 21:28:31) 
[Clang 13.1.6 (clang-1316.0.21.2)] on darwin

python-easygraph: 0.2a38

To reproduce the error, run

## Setup
git clone https://github.com/tddschn/easygraph-test.git
cd easygraph-test

# install pinned dependencies
# CPython >=3.9,<3.10 is required
poetry install # install poetry first: https://python-poetry.org/
# activate venv
poetry shell

## Run tests

poetry run pytest

Error when running the above tests

AttributeError: 'GraphC' object has no attribute 'is_multigraph'

[tddschn]

Screenshot