This directory contains files for reproducing an example of an error.
We see this error when running in an environment with coffea 0.6.49, but do not see the error when in an environment with coffea 0.6.39. We are not sure if we are just doing something wrong, or if it is maybe due to a difference between the two versions.
The error is ValueError: object of too small depth for desired array and seems to be caused by this line in the processor: hout['dummy'].fill(sample=dataset, dummy=1, weight=events.size).
Run python mre_run.py from an environment where coffea (0.6.49) has been installed. For example:
conda create --name test-coffea-env python=3.6.8
conda activate test-coffea-env
conda install -y -c conda-forge coffea
git clone https://github.com/kmohrman/coffea-mre.git
cd coffea-mre
python mre_run.py