I can't actually remember off of the top of my head, I tried it out a year or two ago but didn't get too far because during profiling it became clear the biggest opportunities for performance improvement in this app were primarily algorithmic/query/io optimizations outside of Python itself, so business-wise it didn't make too much sense, though if it had I think using Conda would have been on the table. We make heavy use of Pandas/Numpy et al, though I know those are largely supported now so I'd guess it was not one of them but something adjacent.