Improved error message when prepping only mats with missing image paths. #611
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Also resolves some pep8 warnings.
Local tests pass, but let's see about the github action runner. Tested off of a version of dev initially where the find missing function wasn't yet working, to prove the new message displays then. Also cleans up error code responses (though hm maybe we should just use the MCprep error class? though it's helpful to have the specific errno codes to check against right after).