"""simple docstring"""
import asyncio
import os
import shutil
import subprocess
import sys
import tempfile
import unittest
from distutils.util import strtobool
from functools import partial
from pathlib import Path
from typing import List, Union
from unittest import mock

import torch

from ..state import AcceleratorState, PartialState
from ..utils import (
    gather,
    is_bnb_available,
    is_comet_ml_available,
    is_datasets_available,
    is_deepspeed_available,
    is_mps_available,
    is_safetensors_available,
    is_tensorboard_available,
    is_torch_version,
    is_tpu_available,
    is_transformers_available,
    is_wandb_available,
    is_xpu_available,
)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Tuple ,			_UpperCamelCase       :				Any=False					)					->				int:





      """simple docstring"""






      try:
            snake_case								=			os.environ[key]
      except KeyError:
            # KEY isn't set, default to `default`.
            snake_case								=			default
      else:
            # KEY is set, convert it to True or False.
            try:
                  snake_case								=			strtobool(_UpperCamelCase					)
            except ValueError:
                  # More values are supported, but let's keep the message simple.
                  raise ValueError(f"""If set, {key} must be yes or no."""					)
      return _value


SCREAMING_SNAKE_CASE__      						=  parse_flag_from_env("RUN_SLOW", default=False)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Optional[int]					)					->				List[Any]:





      """simple docstring"""






      return unittest.skip('Test was skipped'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Union[str, Any]					)					->				int:





      """simple docstring"""






      return unittest.skipUnless(_run_slow_tests ,			'test is slow'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Dict					)					->				int:





      """simple docstring"""






      return unittest.skipUnless(not torch.cuda.is_available() ,			'test requires only a CPU'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Tuple					)					->				Dict:





      """simple docstring"""






      return unittest.skipUnless(torch.cuda.is_available() ,			'test requires a GPU'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Optional[int]					)					->				Optional[int]:





      """simple docstring"""






      return unittest.skipUnless(is_xpu_available() ,			'test requires a XPU'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Dict					)					->				List[str]:





      """simple docstring"""






      return unittest.skipUnless(is_mps_available() ,			'test requires a `mps` backend support in `torch`'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				List[Any]					)					->				Tuple:





      """simple docstring"""






      return unittest.skipUnless(
          is_transformers_available() and is_datasets_available() ,			'test requires the Hugging Face suite'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Dict					)					->				Optional[Any]:





      """simple docstring"""






      return unittest.skipUnless(is_bnb_available() ,			'test requires the bitsandbytes library'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				int					)					->				Dict:





      """simple docstring"""






      return unittest.skipUnless(is_tpu_available() ,			'test requires TPU'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				str					)					->				int:





      """simple docstring"""






      return unittest.skipUnless(torch.cuda.device_count() == 1 ,			'test requires a GPU'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Optional[int]					)					->				Union[str, Any]:





      """simple docstring"""






      return unittest.skipUnless(torch.xpu.device_count() == 1 ,			'test requires a XPU'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				str					)					->				Union[str, Any]:





      """simple docstring"""






      return unittest.skipUnless(torch.cuda.device_count() > 1 ,			'test requires multiple GPUs'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Any					)					->				int:





      """simple docstring"""






      return unittest.skipUnless(torch.xpu.device_count() > 1 ,			'test requires multiple XPUs'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Union[str, Any]					)					->				Optional[Any]:





      """simple docstring"""






      return unittest.skipUnless(is_safetensors_available() ,			'test requires safetensors'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Union[str, Any]					)					->				Union[str, Any]:





      """simple docstring"""






      return unittest.skipUnless(is_deepspeed_available() ,			'test requires DeepSpeed'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Tuple					)					->				Dict:





      """simple docstring"""






      return unittest.skipUnless(is_torch_version('>=' ,			'1.12.0'					) ,			'test requires torch version >= 1.12.0'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				List[Any]=None ,			_UpperCamelCase       :				str=None					)					->				str:





      """simple docstring"""






      if test_case is None:
            return partial(_UpperCamelCase ,			version=_UpperCamelCase					)
      return unittest.skipUnless(is_torch_version('>=' ,			_UpperCamelCase					) ,			f"""test requires torch version >= {version}"""					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				int					)					->				List[str]:





      """simple docstring"""






      return unittest.skipUnless(is_tensorboard_available() ,			'test requires Tensorboard'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				List[str]					)					->				List[str]:





      """simple docstring"""






      return unittest.skipUnless(is_wandb_available() ,			'test requires wandb'					)(_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				Optional[Any]					)					->				List[str]:





      """simple docstring"""






      return unittest.skipUnless(is_comet_ml_available() ,			'test requires comet_ml'					)(_UpperCamelCase					)


SCREAMING_SNAKE_CASE__      						=  (
    any([is_wandb_available(), is_tensorboard_available()]) and not is_comet_ml_available()
)





def    lowerCAmelCase__    (			_UpperCamelCase       :				str					)					->				Tuple:





      """simple docstring"""






      return unittest.skipUnless(
          _atleast_one_tracker_available ,			'test requires at least one tracker to be available and for `comet_ml` to not be installed' ,			)(_UpperCamelCase					)



class   lowerCAmelCase_    (			unittest.TestCase					):



    """simple docstring"""
    _lowerCAmelCase     :    List[str]			  =						True

    @classmethod
    def 		snake_case (				cls    ):






          """simple docstring"""

          snake_case								=			tempfile.mkdtemp()

    @classmethod
    def 		snake_case (				cls    ):






          """simple docstring"""

          if os.path.exists(cls.tmpdir    ):
                shutil.rmtree(cls.tmpdir    )

    def 		snake_case (				self    ):






          """simple docstring"""

          if self.clear_on_setup:
                for path in Path(self.tmpdir    ).glob('**/*'    ):
                      if path.is_file():
                            path.unlink()
                      elif path.is_dir():
                            shutil.rmtree(lowerCAmelCase    )





class   lowerCAmelCase_    (			unittest.TestCase					):



    """simple docstring"""

    def 		snake_case (				self    ):






          """simple docstring"""

          super().tearDown()
          # Reset the state of the AcceleratorState singleton.
          AcceleratorState._reset_state()
          PartialState._reset_state()





class   lowerCAmelCase_    (			unittest.TestCase					):



    """simple docstring"""

    def 		snake_case (				self		,    lowerCAmelCase    ):






          """simple docstring"""

          snake_case								=			mocks if isinstance(lowerCAmelCase		,    (tuple, list)    ) else [mocks]
          for m in self.mocks:
                m.start()
                self.addCleanup(m.stop    )





def    lowerCAmelCase__    (			_UpperCamelCase       :				Optional[Any]					)					->				Union[str, Any]:





      """simple docstring"""






      snake_case								=			AcceleratorState()
      snake_case								=			tensor[None].clone().to(state.device					)
      snake_case								=			gather(_UpperCamelCase					).cpu()
      snake_case								=			tensor[0].cpu()
      for i in range(tensors.shape[0]					):
            if not torch.equal(tensors[i] ,			_UpperCamelCase					):
                  return False
      return True



class   lowerCAmelCase_    :



    """simple docstring"""

    def __init__(				self		,    lowerCAmelCase		,    lowerCAmelCase		,    lowerCAmelCase    ):






          """simple docstring"""

          snake_case								=			returncode
          snake_case								=			stdout
          snake_case								=			stderr





async def    lowerCAmelCase__    (			_UpperCamelCase       :				Dict ,			_UpperCamelCase       :				Tuple					)					->				Dict:





      """simple docstring"""






      while True:
            snake_case								=			await stream.readline()
            if line:
                  callback(_UpperCamelCase					)
            else:
                  break





async def    lowerCAmelCase__    (			_UpperCamelCase       :				Optional[int] ,			_UpperCamelCase       :				List[str]=None ,			_UpperCamelCase       :				Union[str, Any]=None ,			_UpperCamelCase       :				List[Any]=None ,			_UpperCamelCase       :				int=False ,			_UpperCamelCase       :				Tuple=False					)					->				_RunOutput:





      """simple docstring"""






      if echo:
            print('\nRunning: ' ,			' '.join(_UpperCamelCase					)					)

      snake_case								=			await asyncio.create_subprocess_exec(
          cmd[0] ,			*cmd[1:] ,			stdin=_UpperCamelCase ,			stdout=asyncio.subprocess.PIPE ,			stderr=asyncio.subprocess.PIPE ,			env=_UpperCamelCase ,			)

      # note: there is a warning for a possible deadlock when using `wait` with huge amounts of data in the pipe
      # https://docs.python.org/3/library/asyncio-subprocess.html#asyncio.asyncio.subprocess.Process.wait
      #
      # If it starts hanging, will need to switch to the following code. The problem is that no data
      # will be seen until it's done and if it hangs for example there will be no debug info.
      # out, err = await p.communicate()
      # return _RunOutput(p.returncode, out, err)

      snake_case								=			[]
      snake_case								=			[]

      def tee(_UpperCamelCase       :				Optional[Any] ,			_UpperCamelCase       :				int ,			_UpperCamelCase       :				str ,			_UpperCamelCase       :				str=""					):
            snake_case								=			line.decode('utf-8'					).rstrip()
            sink.append(_UpperCamelCase					)
            if not quiet:
                  print(_UpperCamelCase ,			_UpperCamelCase ,			file=_UpperCamelCase					)

    # XXX: the timeout doesn't seem to make any difference here
      await asyncio.wait(
          [
              asyncio.create_task(_read_stream(p.stdout ,			lambda _UpperCamelCase					: tee(_UpperCamelCase ,			_UpperCamelCase ,			sys.stdout ,			label='stdout:'					)					)					),
              asyncio.create_task(_read_stream(p.stderr ,			lambda _UpperCamelCase					: tee(_UpperCamelCase ,			_UpperCamelCase ,			sys.stderr ,			label='stderr:'					)					)					),
          ] ,			timeout=_UpperCamelCase ,			)
      return _RunOutput(await p.wait() ,			_UpperCamelCase ,			_UpperCamelCase					)





def    lowerCAmelCase__    (			_UpperCamelCase       :				int ,			_UpperCamelCase       :				Tuple=None ,			_UpperCamelCase       :				List[Any]=None ,			_UpperCamelCase       :				int=1_8_0 ,			_UpperCamelCase       :				Optional[Any]=False ,			_UpperCamelCase       :				Tuple=True					)					->				_RunOutput:





      """simple docstring"""






      snake_case								=			asyncio.get_event_loop()
      snake_case								=			loop.run_until_complete(
          _stream_subprocess(_UpperCamelCase ,			env=_UpperCamelCase ,			stdin=_UpperCamelCase ,			timeout=_UpperCamelCase ,			quiet=_UpperCamelCase ,			echo=_UpperCamelCase					)					)

      snake_case								=			' '.join(_UpperCamelCase					)
      if result.returncode > 0:
            snake_case								=			'\n'.join(result.stderr					)
            raise RuntimeError(
                f"""'{cmd_str}' failed with returncode {result.returncode}\n\n"""
                f"""The combined stderr from workers follows:\n{stderr}"""					)

      return result



class   lowerCAmelCase_    (			lowerCAmelCase					):



    """simple docstring"""
    pass





def    lowerCAmelCase__    (			_UpperCamelCase       :				List[str] ,			_UpperCamelCase       :				List[str]=False					)					->				List[str]:





      """simple docstring"""






      try:
            snake_case								=			subprocess.check_output(_UpperCamelCase ,			stderr=subprocess.STDOUT					)
            if return_stdout:
                  if hasattr(_UpperCamelCase ,			'decode'					):
                        snake_case								=			output.decode('utf-8'					)
                  return output
      except subprocess.CalledProcessError as e:
            raise SubprocessCallException(
                f"""Command `{" ".join(_UpperCamelCase					)}` failed with the following error:\n\n{e.output.decode()}"""					) from e



"""simple docstring"""
import math





def    lowerCAmelCase__    (			_UpperCamelCase       :				float ,			_UpperCamelCase       :				float					)					->				float:





						"""simple docstring"""






						if initial_intensity < 0:
												raise ValueError('The value of intensity cannot be negative'					)
												# handling of negative values of initial intensity
						if angle < 0 or angle > 3_6_0:
												raise ValueError('In Malus Law, the angle is in the range 0-360 degrees'					)
												# handling of values out of allowed range
						return initial_intensity * (math.cos(math.radians(_UpperCamelCase					)					) ** 2)


if __name__ == "__main__":
					import doctest

					doctest.testmod(name="malus_law")


