Exception: ROM is missing for space_invaders, see https://github.com/openai/atari-py#roms for instructions site:stackoverflow.com
import urllib.request
urllib.request.urlretrieve('http://www.atarimania.com/roms/Roms.rar','Roms.rar')
!pip install unrar
!unrar x Roms.rar
!mkdir rars
!mv HC\ ROMS.zip rars
!mv ROMS.zip rars
!python -m atari_py.import_roms rars