title: Exception: ROM is missing for ms_pacman, see https://github.com/openai/atari-py#roms for instructions
body: <p>I am totally new to OpenAi gym, I have just installed gym and then try to make environment for
  <code>env = gym.make('MsPacman-v0')</code> so I am getting the following error:</p>
  <pre><code>---------------------------------------------------------------------------
  Exception                                 Traceback (most recent call last)
  &lt;ipython-input-21-e04adf623175&gt; in &lt;module&gt;
  ----&gt; 1 env = gym.make('MsPacman-v0')
  
  ~\Anaconda3\envs\env_project\lib\site-packages\gym\envs\registration.py in make(id, **kwargs)
  
  ~\Anaconda3\envs\env_project\lib\site-packages\gym\envs\registration.py in make(self, path, **kwargs)
  
  ~\Anaconda3\envs\env_project\lib\site-packages\gym\envs\registration.py in make(self, **kwargs)
  
  ~\Anaconda3\envs\env_project\lib\site-packages\gym\envs\atari\atari_env.py in __init__(self, game, 
  mode, difficulty, obs_type, frameskip, repeat_action_probability, full_action_space)
  
  ~\Anaconda3\envs\env_project\lib\site-packages\atari_py\games.py in get_game_path(game_name)
   18     path = os.path.join(_games_dir, game_name) + &quot;.bin&quot;
   19     if not os.path.exists(path):
  ---&gt; 20         raise Exception('ROM is missing for %s, see https://github.com/openai/atari-py#roms 
  for instructions' % (game_name,))
   21     return path
   22 
  
  Exception: ROM is missing for ms_pacman, see https://github.com/openai/atari-py#roms for instructions
  </code></pre>
  <p>After this I also tried to find the solution on the web and download the <a href="https://github.com/openai/atari-py" rel="nofollow noreferrer">ROMs</a> then hit the command <code>python -m atari_py.import_roms &lt;path where ROMs downloaded&gt;</code>, after running this command I am also getting following error</p>
  <pre><code>(env_project) C:\Users\ME&gt;python -m atari_py.import_roms C:\Users\ME\Downloads\roms_folder\
  
  copying adventure.bin from HC ROMS/BY ALPHABET (PAL)/A-G/Adventure (PAL).bin to 
  C:\Users\ME\Anaconda3\envs\env_project\lib\site-packages\atari_py\atari_roms\adventure.bin
  Traceback (most recent call last):
  File &quot;C:\Users\ME\Anaconda3\envs\env_project\lib\runpy.py&quot;, line 193, in _run_module_as_main
  &quot;__main__&quot;, mod_spec)
  File &quot;C:\Users\ME\Anaconda3\envs\env_project\lib\runpy.py&quot;, line 85, in _run_code
  exec(code, run_globals)
  File &quot;C:\Users\ME\Anaconda3\envs\env_project\lib\site-packages\atari_py\import_roms.py&quot;, line 93, 
  in &lt;module&gt;
  main()
  File &quot;C:\Users\ME\Anaconda3\envs\env_project\lib\site-packages\atari_py\import_roms.py&quot;, line 89, 
  in main
  import_roms(args.dirpath)
  File &quot;C:\Users\ME\Anaconda3\envs\env_project\lib\site-packages\atari_py\import_roms.py&quot;, line 78, 
  in import_roms
  _check_zipfile(f, save_if_matches)
  File &quot;C:\Users\ME\Anaconda3\envs\env_project\lib\site-packages\atari_py\import_roms.py&quot;, line 23, 
  in _check_zipfile
  process_f(innerf)
  File &quot;C:\Users\ME\Anaconda3\envs\env_project\lib\site-packages\atari_py\import_roms.py&quot;, line 67, 
  in save_if_matches
  f.seek(0)
  io.UnsupportedOperation: seek
  </code></pre>
  <p>I don't know what I am doing wrong. Thank in advance.</p>