Aren Siekmeier

I had this error with torch 1.8.0 and it was fixed with torch 1.8.1. https://github.com/pytorch/pytorch/issues/53336

This should always import from `collections.abc` (no need to check if it exists) as that has been the import path since 3.3 when importing ABCs directly from collections was deprecated....

I just want to add all these years later that this comes down to how pip handles appended and repeatable command line options in config/env vars. https://pip.pypa.io/en/stable/topics/configuration/#environment-variables https://pip.pypa.io/en/stable/topics/configuration/#repeatable-options But there...