example data files missing in conda distributions

[barkls]

I don't know how widespread this is, but sometimes the conda distribution doesn't properly bring the example data files along for the ride, which means users can't go through the tutorials. It would be nice to get some examples of systems on which this has happened.

[barkls]

This problem arises because the exampledata folder has no __init__.py so conda doesn't pick it up. This means maybe our exampledata has never worked from a conda distribution? I don't think that's the case so maybe something has changed about what conda/conda-forge includes by default. Here are a few solutions:

1. Add a __init__.py file to hp/core/tests/example_data. I don't really like this solution since there are no python files there and you shouldn't be able to import this as a submodule.

2. Adjust our conda recipe on conda-forge to explicitly include all files in the exampledata directory in the package. I think this is the better option.

[briandleahy]

If you're looking for input, I agree with you -- this seems to be a conda-specific problem, so a conda-specific solution is probably best (i.e. your number 2 above). We can always come back to this if it ends up being a more general problem.

[mdhoney]

It would be nice to get some examples of systems on which this has happened.

This happened for me. HoloPy installed fine with conda, but the whole tree below tests was missing. I ended up manually grabbing the files as a ZIP. What kind of information would be helpful to you?