Universe: a software platform for measuring and training an AI's general intelligence across the world's supply of games, websites and other applications.
This doesn't seem like a bug in universe (which includes six>=1.10.0 in setup.py:install_requires), but a permissions problem with the python installation.
FYI I had to manually install dependencies on Mac because automatic installation failed without manual intervention.
Expected behavior
When installing dependencies automatically with pip install -e . I expected it installs all dependencies automatically without errors.
Actual behavior
I had to ignore already installed six as its now protected: sudo -H pip install --ignore-installed six -e .
Versions (after installing dependencies)