Trying to access flag --sc2_run_config before flags were parsed

[PauloVanHuffel]

I get this error when running any of the scripts. I cant seem to get this fixed. Maybe its a problem with pysc2 itself?

[GordonShamvey]

Same here...

[ShadowDancer]

In meanwhile you can edit site-packages/pysc2/run_configrs/init.py

after FLAGS = flags.FLAGS insert

import sys FLAGS(sys.argv)

I am using windows btw

[ShadowDancer]

Okay, I got it. This repo uses gflags library, where pysc2 uses absl flags library. Inf your program You just have to set:

if name == 'main': import sys from absl import flags FLAGS = flags.FLAGS FLAGS(sys.argv) main()

[hlgrondijs]

I had the same issue, when trying to execute one of the pysc2-examples. Changing the gflags library to the absl one fixed this for me. So what I did was:

Replace the line import gflags as flags with import absl as flags

I also got a "All arguments must be passed as keyword arguments." error. This was fixed by changing:

  with sc2_env.SC2Env(
      "CollectMineralShards",
      step_mul=step_mul,
      visualize=True,
      game_steps_per_episode=steps * step_mul) as env:

to

  with sc2_env.SC2Env(
      map_name="CollectMineralShards",
      step_mul=step_mul,
      visualize=True,
      game_steps_per_episode=steps * step_mul) as env:

Anyone got a clue why this is? Couple months ago it did work out of the box for me. This time I had to change the example code. Please clarify if you know :)

[gnychis]

I believe that I'm still having this issue, even with the fix.

$ /c/Python36/python train_mineral_shards.py --algorithm=acktr
algorithm : acktr
timesteps : 2000000
exploration_fraction : 0.5
prioritized : True
dueling : True
num_cpu : 4
lr : 0.0005
Process Process-2:
Traceback (most recent call last):
  File "C:\Python36\lib\multiprocessing\process.py", line 249, in _bootstrap
    self.run()
  File "C:\Python36\lib\multiprocessing\process.py", line 93, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\GeorgeNychis\Documents\src\sc2\pysc2-examples\common\vec_env\subproc_vec_env.py", line 14, in worker
    map_name=map_name
  File "c:\users\georgenychis\documents\src\sc2\pysc2\pysc2\env\sc2_env.py", line 132, in __init__
    self._setup((agent_race, bot_race, difficulty), **kwargs)
  File "c:\users\georgenychis\documents\src\sc2\pysc2\pysc2\env\sc2_env.py", line 173, in _setup
    self._run_config = run_configs.get()
  File "c:\users\georgenychis\documents\src\sc2\pysc2\pysc2\run_configs\__init__.py", line 38, in get
    if FLAGS.sc2_run_config is None:  # Find the highest priority as default.
  File "C:\Python36\lib\site-packages\absl\flags\_flagvalues.py", line 509, in __getattr__
    raise _exceptions.UnparsedFlagAccessError(error_message)
absl.flags._exceptions.UnparsedFlagAccessError: Trying to access flag --sc2_run_config before flags were parsed.

• Environment: Windows 10
• Python: 3.62.
• pysc2 @ 7a04e74effc88d3e2fe0e4562c99a18d06a099b2
• pysc2-examples @ f188d18024aa5c3b13c93400f17a956722280a17
• absl-py @ 0.1.4

[AGreatPigeon]

@gnychis Ran into the same issue, even with the recent changes.

Rectified it by doing the following:

Edit the following in pysc2\run_configs__init__.py (N.B: I'm using Anaconda, so you will need to find the location of pysc2)

From this (Line 25 to 27): flags.DEFINE_string("sc2_run_config", None, "Which run_config to use to spawn the binary.") FLAGS = flags.FLAGS

To this: flags.DEFINE_string("sc2_run_config", None, "Which run_config to use to spawn the binary.") FLAGS = flags.FLAGS

import sys FLAGS(sys.argv)

A bit of a hack I know, however I've only just became acquainted with the project so I'm trying to find the root cause. Hopefully of some help.

[wshuail]

@AGreatPigeon works for me! Thank you!

[danielalfonsetti]

@AGreatPigeon Works, thank you!

[juanluisrosaramos]

@AGreatPigeon Works! thanks