
'''simple docstring'''


from __future__ import annotations

from typing import Generic, TypeVar

__SCREAMING_SNAKE_CASE  =			TypeVar("T")




class 						__snake_case (						Generic[T]  ):




		def __init__(     self				:Tuple ,						_SCREAMING_SNAKE_CASE				:T)				-> Optional[Any]:






								'''simple docstring'''






								UpperCamelCase_    :  Any				    =    data  # Assign data
								UpperCamelCase_    :  Node[T] | None				    =    None  # Initialize next as null
								UpperCamelCase_    :  Node[T] | None				    =    None  # Initialize prev as null







class 						__snake_case (						Generic[T]  ):




		def __init__(     self				:Tuple)				-> None:






								'''simple docstring'''






								UpperCamelCase_    :  Node[T] | None				    =    None




		def   _snake_case  (     self				:List[str] ,						_SCREAMING_SNAKE_CASE				:T)				-> None:






								'''simple docstring'''






								if self.head is None:
														UpperCamelCase_    :  List[Any]				    =    Node(_SCREAMING_SNAKE_CASE)
								else:
														UpperCamelCase_    :  List[Any]				    =    Node(_SCREAMING_SNAKE_CASE)
														UpperCamelCase_    :  int				    =    new_node
														UpperCamelCase_    :  int				    =    self.head
														UpperCamelCase_    :  Tuple				    =    None
														UpperCamelCase_    :  List[Any]				    =    new_node




		def   _snake_case  (     self				:Any)				-> T | None:






								'''simple docstring'''






								if self.head is None:
														return None
								else:
														assert self.head is not None
														UpperCamelCase_    :  Tuple				    =    self.head.data
														UpperCamelCase_    :  List[Any]				    =    self.head.next
														if self.head is not None:
																				UpperCamelCase_    :  int				    =    None
														return temp




		def   _snake_case  (     self				:Optional[int])				-> T | None:






								'''simple docstring'''






								return self.head.data if self.head is not None else None




		def __len__(     self				:List[Any])				-> int:






								'''simple docstring'''






								UpperCamelCase_    :  List[Any]				    =    self.head
								UpperCamelCase_    :  int				    =    0
								while temp is not None:
														count += 1
														UpperCamelCase_    :  int				    =    temp.next
								return count




		def   _snake_case  (     self				:Tuple)				-> bool:






								'''simple docstring'''






								return self.head is None





		def   _snake_case  (     self				:int)				-> None:






								'''simple docstring'''






								print("""stack elements are:""")
								UpperCamelCase_    :  str				    =    self.head
								while temp is not None:
														print(temp.data ,						end="""->""")
														UpperCamelCase_    :  List[Any]				    =    temp.next


# Code execution starts here
if __name__ == "__main__":
			# Start with the empty stack
			__SCREAMING_SNAKE_CASE  =			Stack()

			# Insert 4 at the beginning. So stack becomes 4->None
			print("Stack operations using Doubly LinkedList")
			stack.push(4)

			# Insert 5 at the beginning. So stack becomes 4->5->None
			stack.push(5)

			# Insert 6 at the beginning. So stack becomes 4->5->6->None
			stack.push(6)

			# Insert 7 at the beginning. So stack becomes 4->5->6->7->None
			stack.push(7)

			# Print the stack
			stack.print_stack()

			# Print the top element
			print("\nTop element is ", stack.top())

			# Print the stack size
			print("Size of the stack is ", len(stack))

			# pop the top element
			stack.pop()

			# pop the top element
			stack.pop()

			# two elements have now been popped off
			stack.print_stack()

			# Print True if the stack is empty else False
			print("\nstack is empty:", stack.is_empty())






'''simple docstring'''


# Copyright 2021 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import json
import os
from dataclasses import dataclass
from enum import Enum
from typing import List, Optional, Union

import yaml

from ...utils import ComputeEnvironment, DistributedType, SageMakerDistributedType
from ...utils.constants import SAGEMAKER_PYTHON_VERSION, SAGEMAKER_PYTORCH_VERSION, SAGEMAKER_TRANSFORMERS_VERSION


__SCREAMING_SNAKE_CASE  =			os.path.expanduser(
    os.getenv("HF_HOME", os.path.join(os.getenv("XDG_CACHE_HOME", "~/.cache"), "huggingface"))
)
__SCREAMING_SNAKE_CASE  =			os.path.join(hf_cache_home, "accelerate")
__SCREAMING_SNAKE_CASE  =			os.path.join(cache_dir, "default_config.yaml")
__SCREAMING_SNAKE_CASE  =			os.path.join(cache_dir, "default_config.yaml")

# For backward compatibility: the default config is the json one if it's the only existing file.
if os.path.isfile(default_yaml_config_file) or not os.path.isfile(default_json_config_file):
	__SCREAMING_SNAKE_CASE  =			default_yaml_config_file
else:
	__SCREAMING_SNAKE_CASE  =			default_json_config_file
def 				__magic_name__(					UpperCAmelCase__   :					int  ):
						if config_file is not None:
												if not os.path.isfile(UpperCAmelCase__  ):
																		raise FileNotFoundError(
																		    f"""The passed configuration file `{config_file}` does not exist. """
																		    """Please pass an existing file to `accelerate launch`, or use the the default one """
																		    """created through `accelerate config` and run `accelerate launch` """
																		    """without the `--config_file` argument."""  )
						else:
												UpperCamelCase_    :  List[Any]				    =    default_config_file
						with open(UpperCAmelCase__       ,							"""r"""       ,							encoding="""utf-8"""  ) as f:
												if config_file.endswith(""".json"""  ):
																		if (
																		    json.load(UpperCAmelCase__  ).get("""compute_environment"""       ,							ComputeEnvironment.LOCAL_MACHINE  )
																		    == ComputeEnvironment.LOCAL_MACHINE
																		):
																								UpperCamelCase_    :  int				    =    ClusterConfig
																		else:
																								UpperCamelCase_    :  Optional[Any]				    =    SageMakerConfig
																		return config_class.from_json_file(json_file=UpperCAmelCase__  )
												else:
																		if (
																		    yaml.safe_load(UpperCAmelCase__  ).get("""compute_environment"""       ,							ComputeEnvironment.LOCAL_MACHINE  )
																		    == ComputeEnvironment.LOCAL_MACHINE
																		):
																								UpperCamelCase_    :  Union[str, Any]				    =    ClusterConfig
																		else:
																								UpperCamelCase_    :  Optional[int]				    =    SageMakerConfig
																		return config_class.from_yaml_file(yaml_file=UpperCAmelCase__  )




@dataclass
class 						__snake_case :
		a_        =				42
		a_        =				42
		a_        =				42
		a_        =				42




		def   _snake_case  (     self				:List[Any])				-> Optional[Any]:






								'''simple docstring'''






								UpperCamelCase_    :  List[str]				    =    self.__dict__
								# For serialization, it's best to convert Enums to strings (or their underlying value type).
								for key, value in result.items():
														if isinstance(_SCREAMING_SNAKE_CASE ,						_SCREAMING_SNAKE_CASE):
																				UpperCamelCase_    :  str				    =    value.value
														if isinstance(_SCREAMING_SNAKE_CASE ,						_SCREAMING_SNAKE_CASE) and not bool(_SCREAMING_SNAKE_CASE):
																				UpperCamelCase_    :  Dict				    =    None
								UpperCamelCase_    :  Dict				    =    {k: v for k, v in result.items() if v is not None}
								return result




		@classmethod
		def   _snake_case  (     cls				:Dict ,						_SCREAMING_SNAKE_CASE				:Optional[int]=None)				-> int:






								'''simple docstring'''






								UpperCamelCase_    :  str				    =    default_json_config_file if json_file is None else json_file
								with open(_SCREAMING_SNAKE_CASE ,						"""r""" ,						encoding="""utf-8""") as f:
														UpperCamelCase_    :  List[str]				    =    json.load(_SCREAMING_SNAKE_CASE)
								if "compute_environment" not in config_dict:
														UpperCamelCase_    :  Union[str, Any]				    =    ComputeEnvironment.LOCAL_MACHINE
								if "mixed_precision" not in config_dict:
														UpperCamelCase_    :  List[Any]				    =    """fp16""" if ("""fp16""" in config_dict and config_dict["""fp16"""]) else None
								if "fp16" in config_dict:  # Convert the config to the new format.
														del config_dict["fp16"]
								if "dynamo_backend" in config_dict:  # Convert the config to the new format.
														UpperCamelCase_    :  Optional[int]				    =    config_dict.pop("""dynamo_backend""")
														UpperCamelCase_    :  List[str]				    =    {} if dynamo_backend == """NO""" else {"""dynamo_backend""": dynamo_backend}
								if "use_cpu" not in config_dict:
														UpperCamelCase_    :  Dict				    =    False
								return cls(**_SCREAMING_SNAKE_CASE)




		def   _snake_case  (     self				:int ,						_SCREAMING_SNAKE_CASE				:List[Any])				-> List[str]:






								'''simple docstring'''






								with open(_SCREAMING_SNAKE_CASE ,						"""w""" ,						encoding="""utf-8""") as f:
														UpperCamelCase_    :  Union[str, Any]				    =    json.dumps(self.to_dict() ,						indent=2 ,						sort_keys=_SCREAMING_SNAKE_CASE) + """\n"""
														f.write(_SCREAMING_SNAKE_CASE)




		@classmethod
		def   _snake_case  (     cls				:Optional[Any] ,						_SCREAMING_SNAKE_CASE				:Any=None)				-> List[str]:






								'''simple docstring'''






								UpperCamelCase_    :  List[str]				    =    default_yaml_config_file if yaml_file is None else yaml_file
								with open(_SCREAMING_SNAKE_CASE ,						"""r""" ,						encoding="""utf-8""") as f:
														UpperCamelCase_    :  Any				    =    yaml.safe_load(_SCREAMING_SNAKE_CASE)
								if "compute_environment" not in config_dict:
														UpperCamelCase_    :  Union[str, Any]				    =    ComputeEnvironment.LOCAL_MACHINE

								if "mixed_precision" not in config_dict:
														UpperCamelCase_    :  int				    =    """fp16""" if ("""fp16""" in config_dict and config_dict["""fp16"""]) else None
								if isinstance(config_dict["""mixed_precision"""] ,						_SCREAMING_SNAKE_CASE) and not config_dict["mixed_precision"]:
														UpperCamelCase_    :  Union[str, Any]				    =    """no"""
								if "fp16" in config_dict:  # Convert the config to the new format.
														del config_dict["fp16"]
								if "dynamo_backend" in config_dict:  # Convert the config to the new format.
														UpperCamelCase_    :  Any				    =    config_dict.pop("""dynamo_backend""")
														UpperCamelCase_    :  Optional[Any]				    =    {} if dynamo_backend == """NO""" else {"""dynamo_backend""": dynamo_backend}
								if "use_cpu" not in config_dict:
														UpperCamelCase_    :  List[str]				    =    False
								return cls(**_SCREAMING_SNAKE_CASE)




		def   _snake_case  (     self				:List[Any] ,						_SCREAMING_SNAKE_CASE				:str)				-> int:






								'''simple docstring'''






								with open(_SCREAMING_SNAKE_CASE ,						"""w""" ,						encoding="""utf-8""") as f:
														yaml.safe_dump(self.to_dict() ,						_SCREAMING_SNAKE_CASE)





		def   _snake_case  (     self				:Any)				-> int:






								'''simple docstring'''






								if isinstance(self.compute_environment ,						_SCREAMING_SNAKE_CASE):
														UpperCamelCase_    :  Dict				    =    ComputeEnvironment(self.compute_environment)
								if isinstance(self.distributed_type ,						_SCREAMING_SNAKE_CASE):
														if self.compute_environment == ComputeEnvironment.AMAZON_SAGEMAKER:
																				UpperCamelCase_    :  Optional[Any]				    =    SageMakerDistributedType(self.distributed_type)
														else:
																				UpperCamelCase_    :  Optional[int]				    =    DistributedType(self.distributed_type)
								if self.dynamo_config is None:
														UpperCamelCase_    :  str				    =    {}







@dataclass
class 						__snake_case (						_a  ):
		a_        =				42
		a_        =				0
		a_        =				1
		a_        =				None
		a_        =				None
		a_        =				None
		a_        =				"static"
		a_        =				False
		a_        =				"main"

		# args for deepspeed_plugin
		a_        =				None
		# args for fsdp
		a_        =				None
		# args for megatron_lm
		a_        =				None
		# args for ipex
		a_        =				None
		# args for TPU
		a_        =				False

		# args for TPU pods
		a_        =				None
		a_        =				None
		a_        =				False
		a_        =				False
		a_        =				None
		a_        =				None
		a_        =				None
		a_        =				None

		# args for dynamo
		a_        =				None




		def   _snake_case  (     self				:List[str])				-> Tuple:






								'''simple docstring'''






								if self.deepspeed_config is None:
														UpperCamelCase_    :  Tuple				    =    {}
								if self.fsdp_config is None:
														UpperCamelCase_    :  Union[str, Any]				    =    {}
								if self.megatron_lm_config is None:
														UpperCamelCase_    :  int				    =    {}
								if self.ipex_config is None:
														UpperCamelCase_    :  Optional[int]				    =    {}
								return super().__post_init__()







@dataclass
class 						__snake_case (						_a  ):
		a_        =				42
		a_        =				42
		a_        =				None
		a_        =				None
		a_        =				"us-east-1"
		a_        =				1
		a_        =				"all"
		a_        =				F"""accelerate-sagemaker-{num_machines}"""
		a_        =				SAGEMAKER_PYTORCH_VERSION
		a_        =				SAGEMAKER_TRANSFORMERS_VERSION
		a_        =				SAGEMAKER_PYTHON_VERSION
		a_        =				None
		a_        =				None
		a_        =				None
		a_        =				None




