FileNotFoundError in migrated project to bw2.5

[mfastudillo]

Hi all

This error may be a bit tricky to replicate, but I have tried to migrate a project from bw2 to bw2.5 and when creating a database from an excel file I got a FileNotFoundError

I was running

ei = ExcelImporter(path_exemple_excel)
ei.apply_strategies()

I tried to do the migration again, but this throws an AssertionError as the migration was already done

If I create a project from scratch and run the same code I don't find this FileNotFound error.

For the moment I'll probably restart the whole project from scratch, but I thought it was worth noting this potential problem.

@cmutel

[cmutel]

@mfastudillo Thanks a lot for this error report.

I changed the algorithm that creates the hash string in the filename, to make it shorter because it was causing problems on Windows (which has limits on filepath lengths). So in bw2:

>>> bi.Migration("biosphere-2-3-categories").filename
'biosphere-2-3-categories.c4c23e4d830d2b633703f1a65f9cdd0f'

While on bw25:

>>> bi.Migration("biosphere-2-3-categories").filename
'biosphere-2-3-categories.c4c23e4d'

The way to fix this is to change the filenames when switching to 2.5, this should be more or less OK, but will take a bit of time.

[cmutel]

Fixed in brightway-lca/brightway2-data@d317107