Tensorflow is the worst (along with ReAgent from FB). I think it's because they have their own internal build systems, but they never play well with pip/conda

Tensorflow is the worst (along with ReAgent from FB). I think it's because they have their own internal build systems, but they never play well with pip/conda et al. One of my recent breakages was installing the recsim package, which pulled in tensorflow and broke my entire app. There's actually a recsim-no-tf package on PyPi, presumably because this happens to loads of people.