installation fails due to mujoco

[dan9thsense]

Trying to follow the simplest method to get started from here. pip install -e . fails with multiple messages about MuJoCo. Thinking that was OK, since MuJoCo is optional, I proceeded to try to run the Check Your Install line. However, that fails with multiple things not installed, because the original installation dies after failing to install MuJoCo. This is true both on Ubuntu 16.04 and 18.04.
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[dan9thsense]

Resolved by removing line 23 from the setup.py file:
'mujoco-py<2.1,>=2.0',

If MuJoCo is optional, why is it included in the default setup.py file?

And, editorial comment, MuJoCo is very expensive, so unless it is truly optional, this is not really an open source project.

[bionicles]

same issue here. your fixed worked @dan9thsense... it would be good if mujoco install was off by default as it is a paid package

[ibrahiminfinite]

@dan9thsense @bionicles
MuJoCo install, has been made optional with PR #163.

[dan9thsense]

Thanks for the fast response!