





'''simple docstring'''







import importlib
import importlib.metadata
import os
import warnings
from distutils.util import strtobool
from functools import lru_cache

import torch
from packaging import version
from packaging.version import parse

from .environment import parse_flag_from_env
from .versions import compare_versions, is_torch_version


try:
					import torch_xla.core.xla_model as xm  # noqa: F401

					snake_case_  :							Union[str, Any]            =	True
except ImportError:
					snake_case_  :							List[str]            =	False


# Cache this result has it's a C FFI call which can be pretty time-consuming
snake_case_  :							Dict            =	torch.distributed.is_available()





def 							lowerCamelCase_   (	SCREAMING_SNAKE_CASE__   :      int )			->						Tuple:
						# Check we're not importing a "pkg_name" directory somewhere but the actual library by trying to grab the version
						UpperCAmelCase_      :   Optional[int]      =	importlib.util.find_spec(SCREAMING_SNAKE_CASE__ ) is not None
						if package_exists:
												try:
																		UpperCAmelCase_      :   Tuple      =	importlib.metadata.metadata(SCREAMING_SNAKE_CASE__ )
																		return True
												except importlib.metadata.PackageNotFoundError:
																		return False





def 							lowerCamelCase_   (	)			->						bool:
						return _torch_distributed_available





def 							lowerCamelCase_   (	)			->						Any:
						try:
												pass
						except ImportError:
												print(
												    '''Intel(R) oneCCL Bindings for PyTorch* is required to run DDP on Intel(R) GPUs, but it is not'''
												    ''' detected. If you see \"ValueError: Invalid backend: \'ccl\'\" error, please install Intel(R) oneCCL'''
												    ''' Bindings for PyTorch*.''' )
						return (
						    importlib.util.find_spec('''torch_ccl''' ) is not None
						    or importlib.util.find_spec('''oneccl_bindings_for_pytorch''' ) is not None
						)





def 							lowerCamelCase_   (	)			->						Tuple:
						return importlib.metadata.version('''oneccl_bind_pt''' )





def 							lowerCamelCase_   (	)			->						int:
						return _is_package_available('''transformer_engine''' )





@lru_cache
def 							lowerCamelCase_   (	SCREAMING_SNAKE_CASE__   :      Optional[int]=True )			->						Dict:
						# Due to bugs on the amp series GPUs, we disable torch-xla on them
						if torch.cuda.is_available():
												return False
						if _tpu_available and check_device:
												try:
																		# Will raise a RuntimeError if no XLA configuration is found
																		UpperCAmelCase_      :   List[str]      =	xm.xla_device()
																		return True
												except RuntimeError:
																		return False
						return _tpu_available





def 							lowerCamelCase_   (	)			->						List[Any]:
						return _is_package_available('''deepspeed''' )





def 							lowerCamelCase_   (	SCREAMING_SNAKE_CASE__   :      Optional[Any]=False )			->						Union[str, Any]:
						if is_tpu_available():
												return not ignore_tpu
						if torch.cuda.is_available():
												return torch.cuda.is_bfaa_supported()
						if is_npu_available():
												return False
						return True





def 							lowerCamelCase_   (	)			->						Tuple:
						UpperCAmelCase_      :   List[str]      =	_is_package_available('''bitsandbytes''' )
						if package_exists:
												UpperCAmelCase_      :   Optional[int]      =	version.parse(importlib.metadata.version('''bitsandbytes''' ) )
												return compare_versions(SCREAMING_SNAKE_CASE__,      '''>=''',      '''0.39.0''' )
						return False





def 							lowerCamelCase_   (	)			->						Union[str, Any]:
						UpperCAmelCase_      :   List[Any]      =	_is_package_available('''bitsandbytes''' )
						if package_exists:
												UpperCAmelCase_      :   Any      =	version.parse(importlib.metadata.version('''bitsandbytes''' ) )
												return compare_versions(SCREAMING_SNAKE_CASE__,      '''>=''',      '''0.37.2''' )
						return False





def 							lowerCamelCase_   (	)			->						int:
						return _is_package_available('''bitsandbytes''' )





def 							lowerCamelCase_   (	)			->						Optional[int]:
						if strtobool(os.environ.get('''ACCELERATE_USE_MEGATRON_LM''',      '''False''' ) ) == 1:
												UpperCAmelCase_      :   Dict      =	importlib.util.find_spec('''megatron''' ) is not None
												if package_exists:
																		try:
																								UpperCAmelCase_      :   List[str]      =	parse(importlib.metadata.version('''megatron-lm''' ) )
																								return compare_versions(SCREAMING_SNAKE_CASE__,      '''>=''',      '''2.2.0''' )
																		except Exception as e:
																								warnings.warn(F"""Parse Megatron version failed. Exception:{e}""" )
																								return False





def 							lowerCamelCase_   (	)			->						Dict:
						return _is_package_available('''safetensors''' )





def 							lowerCamelCase_   (	)			->						List[str]:
						return _is_package_available('''transformers''' )





def 							lowerCamelCase_   (	)			->						str:
						return _is_package_available('''datasets''' )





def 							lowerCamelCase_   (	)			->						Any:
						return _is_package_available('''aim''' )





def 							lowerCamelCase_   (	)			->						List[Any]:
						return _is_package_available('''tensorboard''' ) or _is_package_available('''tensorboardX''' )





def 							lowerCamelCase_   (	)			->						Tuple:
						return _is_package_available('''wandb''' )





def 							lowerCamelCase_   (	)			->						Any:
						return _is_package_available('''comet_ml''' )





def 							lowerCamelCase_   (	)			->						List[Any]:
						return _is_package_available('''boto3''' )





def 							lowerCamelCase_   (	)			->						Union[str, Any]:
						if _is_package_available('''rich''' ):
												if "ACCELERATE_DISABLE_RICH" in os.environ:
																		warnings.warn(
																		    '''`ACCELERATE_DISABLE_RICH` is deprecated and will be removed in v0.22.0 and deactivated by default. Please use `ACCELERATE_ENABLE_RICH` if you wish to use `rich`.''' )
																		return not parse_flag_from_env('''ACCELERATE_DISABLE_RICH''',      SCREAMING_SNAKE_CASE__ )
												return parse_flag_from_env('''ACCELERATE_ENABLE_RICH''',      SCREAMING_SNAKE_CASE__ )
						return False





def 							lowerCamelCase_   (	)			->						Union[str, Any]:
						return _is_package_available('''sagemaker''' )





def 							lowerCamelCase_   (	)			->						List[Any]:
						return _is_package_available('''tqdm''' )





def 							lowerCamelCase_   (	)			->						List[Any]:
						return _is_package_available('''mlflow''' )





def 							lowerCamelCase_   (	)			->						Union[str, Any]:
						return is_torch_version('''>=''',      '''1.12''' ) and torch.backends.mps.is_available() and torch.backends.mps.is_built()





def 							lowerCamelCase_   (	)			->						Union[str, Any]:
						def get_major_and_minor_from_version(SCREAMING_SNAKE_CASE__   :      str ):
												return str(version.parse(SCREAMING_SNAKE_CASE__ ).major ) + "." + str(version.parse(SCREAMING_SNAKE_CASE__ ).minor )

						UpperCAmelCase_      :   List[Any]      =	importlib.metadata.version('''torch''' )
						if importlib.util.find_spec('''intel_extension_for_pytorch''' ) is None:
												return False
						UpperCAmelCase_      :   Dict      =	'''N/A'''
						try:
												UpperCAmelCase_      :   Union[str, Any]      =	importlib.metadata.version('''intel_extension_for_pytorch''' )
						except importlib.metadata.PackageNotFoundError:
												return False
						UpperCAmelCase_      :   List[str]      =	get_major_and_minor_from_version(_torch_version )
						UpperCAmelCase_      :   str      =	get_major_and_minor_from_version(_ipex_version )
						if torch_major_and_minor != ipex_major_and_minor:
												warnings.warn(
												    F"""Intel Extension for PyTorch {ipex_major_and_minor} needs to work with PyTorch {ipex_major_and_minor}.*,"""
												    F""" but PyTorch {_torch_version} is found. Please switch to the matching version and run again.""" )
												return False
						return True





@lru_cache
def 							lowerCamelCase_   (	SCREAMING_SNAKE_CASE__   :      Dict=False )			->						Any:
						if importlib.util.find_spec('''torch''' ) is None or importlib.util.find_spec('''torch_npu''' ) is None:
												return False

						import torch
						import torch_npu  # noqa: F401

						if check_device:
												try:
																		# Will raise a RuntimeError if no NPU is found
																		UpperCAmelCase_      :   List[str]      =	torch.npu.device_count()
																		return torch.npu.is_available()
												except RuntimeError:
																		return False
						return hasattr(SCREAMING_SNAKE_CASE__,      '''npu''' ) and torch.npu.is_available()





@lru_cache
def 							lowerCamelCase_   (	SCREAMING_SNAKE_CASE__   :      List[Any]=False )			->						int:
						if not parse_flag_from_env('''ACCELERATE_USE_XPU''',      default=SCREAMING_SNAKE_CASE__ ):
												return False
						if is_ipex_available():
												import torch

												if is_torch_version('''<=''',      '''1.12''' ):
																		return False
						else:
												return False

						import intel_extension_for_pytorch  # noqa: F401

						if check_device:
												try:
																		# Will raise a RuntimeError if no XPU  is found
																		UpperCAmelCase_      :   Optional[int]      =	torch.xpu.device_count()
																		return torch.xpu.is_available()
												except RuntimeError:
																		return False
						return hasattr(SCREAMING_SNAKE_CASE__,      '''xpu''' ) and torch.xpu.is_available()








'''simple docstring'''







from .balanced_parentheses import balanced_parentheses
from .stack import Stack






def 					_SCREAMING_SNAKE_CASE		(						snake_case_	):
	return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(snake_case_							,       -1	)






def 					_SCREAMING_SNAKE_CASE		(						snake_case_	):
	if not balanced_parentheses(snake_case_	):
		raise ValueError("""Mismatched parentheses"""	)
	_lowercase							=     Stack()
	_lowercase							=     []
	for char in expression_str:
		if char.isalpha() or char.isdigit():
			postfix.append(snake_case_	)
		elif char == "(":
			stack.push(snake_case_	)
		elif char == ")":
			while not stack.is_empty() and stack.peek() != "(":
				postfix.append(stack.pop()	)
			stack.pop()
		else:
			while not stack.is_empty() and precedence(snake_case_	) <= precedence(stack.peek()	):
				postfix.append(stack.pop()	)
			stack.push(snake_case_	)
	while not stack.is_empty():
		postfix.append(stack.pop()	)
	return " ".join(snake_case_	)


if __name__ == "__main__":
							from doctest import testmod

							testmod()
							_lowerCamelCase    =  'a+b*(c^d-e)^(f+g*h)-i'

							print('Infix to Postfix Notation demonstration:\n')
							print('Infix notation: ' + expression)
							print('Postfix notation: ' + infix_to_postfix(expression))




