[Python] Unable to use all (or most) of gym-retro games

My working ENV


System: ubuntu 18.04

Version: python 3.6/3.7/3.8(3 envvironments all the same result), gym 0.25.2, gym-retro 0.8.0

How did I do?


I follow this guide to install gym-retro. and I successfully run the example game.

Problems I met?


Firstly, I imported some ROMs from the internet, for example the the 128 sine-dot, But I CANNOT import it: when I executed

python -m retro.import Anthrox\ -\ Sine-dot\ Demo\ \(PD\).smc


the result was:

Imported 0 games


picture of text above

and the Atari games (more than 1000 games),I could only successfully import no more than 200 games, but I can make env no more than 100 games.

I executed:

python -m retro.import .


and results was:

Importing DemonAttack-Atari2600
.
.
Importing Pong-Atari2600
Imported 167 games


I wrote this script to get game status to judge whether we can make this env:

import retro

game_list = retro.data.list_games()

def main():
cnt = 0
for game_name in game_list:
try:
env = retro.make(game=game_name)
except Exception as e:
print(game_name, ": ", "no")
else:
cnt+=1
env.close()
print(game_name, ": ", "yes")
print("all: ", cnt)

if __name__ == "__main__":
main()


and the results was:

...
YarsRevenge-Atari2600 : yes
YoukaiClub-Nes : no
YoukaiDouchuuki-Nes : no
YoungIndianaJonesChronicles-Nes : no
Zanac-Nes : no
Zaxxon-Atari2600 : yes
ZeroTheKamikazeSquirrel-Genesis : no
ZeroTheKamikazeSquirrel-Snes : no
ZeroWing-Genesis : no
ZombiesAteMyNeighbors-Snes : no
ZoolNinjaOfTheNthDimension-Genesis : no
ZoolNinjaOfTheNthDimension-Sms : no
ZoolNinjaOfTheNthDimension-Snes : no
all: 63


UPDATE INFO, all exceptions were:

Game not found: xxxxxxxx. Did you make sure to import the ROM?


and found out that only 63 games were makeable.

Questions I want to ask!!!


How could I import those games to my retro?

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