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I am trying to install openai gym on a fresh Ubuntu 16VM. I'm following the documentation to install the Atari package, but I keep running into problems:

When I run ipython > v2.7.12

>import gym >gym.make('SpaceInvaders-v0')

I get :

.... TypeError: super() takes at least 1 argument (0 given)

It seems to run python3 code, however, during the installation I used the default settings. When I run 

python3 > 3.5.2 > import gym ImportError: No module named 'gym'

What am I doing wrong? I installed gym into the user environment with pip --user parameters.

Solution: Simple fix to use pip3 which is unfortunately not mentioned in the Readme :(

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    Perhaps try installing to pip3 --user instead of pip --user? Commented Feb 13, 2019 at 1:49
  • Sure! :D I'll try Commented Feb 13, 2019 at 1:54
  • That was it, thank you! Commented Feb 13, 2019 at 2:00
  • 1
    Ok great to hear that it solved your problem! Commented Feb 13, 2019 at 2:39

1 Answer 1

Reset to default
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To install to a Python3 environment use the following command

pip3 --user

For debugging between Python2 and Python3 pip environments the following commands are often useful:

pip3 --version

pip --version

It prints out the corresponding Python environment that it is attached to

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