Using linux for poke env yields ConstantTeambuilder object has no attribute '_mons'

[AlanOsys]

As the title says I get this error only on linux. I use the same code on Windows and it works fine, but I wish to use it on linux.

The issue seems to stem from poke_env/teambuilder/constant_teambuilder.py
specifically in return self._mons

[hsahovic]

Hi @AlanOsys,
Thanks for opening this issue. Can you post a minimum example to reproduce this issue?

[AlanOsys]

team_1 = """
Goodra (M) @ Assault Vest
Ability: Sap Sipper
EVs: 248 HP / 252 SpA / 8 Spe
Modest Nature
IVs: 0 Atk

• Dragon Pulse
• Flamethrower
• Sludge Wave
• Thunderbolt

Sylveon (M) @ Leftovers
Ability: Pixilate
EVs: 248 HP / 244 Def / 16 SpD
Calm Nature
IVs: 0 Atk

• Hyper Voice
• Mystical Fire
• Protect
• Wish

Cinderace (M) @ Life Orb
Ability: Blaze
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature

• Pyro Ball
• Sucker Punch
• U-turn
• High Jump Kick

Toxtricity (M) @ Throat Spray
Ability: Punk Rock
EVs: 4 Atk / 252 SpA / 252 Spe
Rash Nature

• Overdrive
• Boomburst
• Shift Gear
• Fire Punch

Seismitoad (M) @ Leftovers
Ability: Water Absorb
EVs: 252 HP / 252 Def / 4 SpD
Relaxed Nature

• Stealth Rock
• Scald
• Earthquake
• Toxic

Corviknight (M) @ Leftovers
Ability: Pressure
EVs: 248 HP / 80 SpD / 180 Spe
Impish Nature

• Defog
• Brave Bird
• Roost
• U-turn
  """

team_2 = """
Togekiss @ Leftovers
Ability: Serene Grace
EVs: 248 HP / 8 SpA / 252 Spe
Timid Nature
IVs: 0 Atk

• Air Slash
• Nasty Plot
• Substitute
• Thunder Wave

Galvantula @ Focus Sash
Ability: Compound Eyes
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk

• Sticky Web
• Thunder Wave
• Thunder
• Energy Ball

Cloyster @ Leftovers
Ability: Skill Link
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature

• Icicle Spear
• Rock Blast
• Ice Shard
• Shell Smash

Sandaconda @ Focus Sash
Ability: Sand Spit
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature

• Stealth Rock
• Glare
• Earthquake
• Rock Tomb

Excadrill @ Focus Sash
Ability: Sand Rush
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature

• Iron Head
• Rock Slide
• Earthquake
• Rapid Spin

Cinccino @ Leftovers
Ability: Skill Link
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature

• Bullet Seed

• Knock Off

• Rock Blast

• Tail Slap
  """
  from poke_env import RandomPlayer
  from poke_env.data import GenData
  class RandomTeamFromPool(Teambuilder):
  def init(self, pokemons):
  self.pokemons = []

    for pokemon in pokemons:
        parsed_mons = self.parse_showdown_team(pokemon)
        self.pokemons.append(parsed_mons[0])
    self.n_pokemons = len(self.pokemons)
    assert self.n_pokemons >= 6
  

  def yield_team(self):
  idxs = np.random.choice(self.n_pokemons, 6, replace=False)
  team = [self.pokemons[idx] for idx in idxs]
  return self.join_team(team)
  def yield_team_for_a_mons(self,pokemonIdx=None):
  #print(len(str(self.pokemons).replace("[","").replace("]","").split("|")[:-1]))
  if pokemonIdx == None:
  picked_idx = np.random.choice(self.n_pokemons, 1, replace=False)
  else:
  picked_idx = [pokemonIdx]
  picked_mon = [self.pokemons[idx] for idx in picked_idx]
  #print(picked_mon,picked_idx)
  idxs = [picked_idx]
  while(picked_idx in idxs):
  idxs = np.random.choice(self.n_pokemons, 5, replace=False)
  #print(idxs)
  team = [self.pokemons[idx] for idx in idxs]
  team.append(picked_mon[0])
  return self.join_team(team)
  custom_builder = RandomTeamFromPool(pokemons)
  print(custom_builder.yield_team_for_a_mons())
  #use this ^ to generate like 10 teams for one mon at first
  #then do this for 20 mons
  teams_per_mon = []
  for i in range (0,len(pokemons)):
  teams = []
  for j in range(0,10):
  #print(custom_builder.yield_team_for_a_mons(i))
  teams.append(custom_builder.yield_team_for_a_mons(i))
  teams_per_mon.append(teams)
  player_1 = RandomPlayer(
  battle_format="gen9customgame",
  team=teams_per_mon[0][0],
  max_concurrent_battles=10,
  )
  player_2 = RandomPlayer(
  battle_format="gen9customgame",
  team=teams_per_mon[0][0],
  max_concurrent_battles=10,
  )
  await player_1.battle_against(player_2, n_battles=10)
  tem = int(player_1.n_won_battles/10*100)

[AlanOsys]

It works if i dont use a custom team builder, but its something i would really want to use

[hsahovic]

I wonder if this has to do with carriage return (\r\n) v. line feed (\n). Most editors give you the option to choose. If yours does, can you try changing it and see if it fixes this issue?