from __future__ import annotations

from typing import Generic, TypeVar

UpperCAmelCase      		=					TypeVar('''T''')




class  __lowerCAmelCase	(							Generic[T]    ):



 '''simple docstring'''

 def __init__(      self							:		Union[str, Any]							,      lowerCamelCase							:		T	)			->				List[str]:
        _UpperCamelCase  :							Any	    =	data  # Assign data
        _UpperCamelCase  :							Node[T] | None	    =	None  # Initialize next as null
        _UpperCamelCase  :							Node[T] | None	    =	None  # Initialize prev as null







class  __lowerCAmelCase	(							Generic[T]    ):



 '''simple docstring'''

 def __init__(      self							:		Optional[int]	)			->				None:
        _UpperCamelCase  :							Node[T] | None	    =	None

 def        __snake_case       (      self							:		int							,      lowerCamelCase							:		T	)			->				None:
        if self.head is None:
               _UpperCamelCase  :							List[Any]	    =	Node(lowerCamelCase	)
        else:
               _UpperCamelCase  :							Optional[Any]	    =	Node(lowerCamelCase	)
               _UpperCamelCase  :							Optional[Any]	    =	new_node
               _UpperCamelCase  :							List[str]	    =	self.head
               _UpperCamelCase  :							List[Any]	    =	None
               _UpperCamelCase  :							List[str]	    =	new_node

 def        __snake_case       (      self							:		Union[str, Any]	)			->				T | None:
        if self.head is None:
               return None
        else:
               assert self.head is not None
               _UpperCamelCase  :							Union[str, Any]	    =	self.head.data
               _UpperCamelCase  :							List[Any]	    =	self.head.next
               if self.head is not None:
                      _UpperCamelCase  :							List[Any]	    =	None
               return temp

 def        __snake_case       (      self							:		Tuple	)			->				T | None:
        return self.head.data if self.head is not None else None

 def __len__(      self							:		Optional[int]	)			->				int:
        _UpperCamelCase  :							Dict	    =	self.head
        _UpperCamelCase  :							Dict	    =	0
        while temp is not None:
               count += 1
               _UpperCamelCase  :							Optional[Any]	    =	temp.next
        return count

 def        __snake_case       (      self							:		Optional[Any]	)			->				bool:
        return self.head is None

 def        __snake_case       (      self							:		Union[str, Any]	)			->				None:
        print('stack elements are:'	)
        _UpperCamelCase  :							Optional[int]	    =	self.head
        while temp is not None:
               print(temp.data							,      end='->'	)
               _UpperCamelCase  :							str	    =	temp.next


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










# 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


UpperCAmelCase_   				=  os.path.expanduser(
    os.getenv("""HF_HOME""", os.path.join(os.getenv("""XDG_CACHE_HOME""", """~/.cache"""), """huggingface"""))
)
UpperCAmelCase_   				=  os.path.join(hf_cache_home, """accelerate""")
UpperCAmelCase_   				=  os.path.join(cache_dir, """default_config.yaml""")
UpperCAmelCase_   				=  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):
					UpperCAmelCase_   				=  default_yaml_config_file
else:
					UpperCAmelCase_   				=  default_json_config_file





def     lowerCamelCase__  (  UpperCamelCase__      :							List[str]    )      ->			str:



					'''simple docstring'''




					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:
										_snake_case						=					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
															):
																				_snake_case						=					ClusterConfig
															else:
																				_snake_case						=					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
															):
																				_snake_case						=					ClusterConfig
															else:
																				_snake_case						=					SageMakerConfig
															return config_class.from_yaml_file(yaml_file=UpperCamelCase__    )
@dataclass
class       UpperCamelCase_		:
					lowerCAmelCase_				=						42
					lowerCAmelCase_				=						42
					lowerCAmelCase_				=						42
					lowerCAmelCase_				=						42




					def 						lowerCAmelCase      (		self	)		->				Optional[Any]:
										_snake_case						=					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(lowerCAmelCase_					,    lowerCAmelCase_	):
																				_snake_case						=					value.value
															if isinstance(lowerCAmelCase_					,    lowerCAmelCase_	) and not bool(lowerCAmelCase_	):
																				_snake_case						=					None
										_snake_case						=					{k: v for k, v in result.items() if v is not None}
										return result




					@classmethod
					def 						lowerCAmelCase      (		cls					,    lowerCAmelCase_=None	)		->				List[Any]:
										_snake_case						=					default_json_config_file if json_file is None else json_file
										with open(lowerCAmelCase_					,    'r'					,    encoding='utf-8'	) as f:
															_snake_case						=					json.load(lowerCAmelCase_	)
										if "compute_environment" not in config_dict:
															_snake_case						=					ComputeEnvironment.LOCAL_MACHINE
										if "mixed_precision" not in config_dict:
															_snake_case						=					'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.
															_snake_case						=					config_dict.pop('dynamo_backend'	)
															_snake_case						=					{} if dynamo_backend == 'NO' else {'dynamo_backend': dynamo_backend}
										if "use_cpu" not in config_dict:
															_snake_case						=					False
										return cls(**lowerCAmelCase_	)




					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_	)		->				List[str]:
										with open(lowerCAmelCase_					,    'w'					,    encoding='utf-8'	) as f:
															_snake_case						=					json.dumps(self.to_dict()					,    indent=2					,    sort_keys=lowerCAmelCase_	) + '\n'
															f.write(lowerCAmelCase_	)




					@classmethod
					def 						lowerCAmelCase      (		cls					,    lowerCAmelCase_=None	)		->				int:
										_snake_case						=					default_yaml_config_file if yaml_file is None else yaml_file
										with open(lowerCAmelCase_					,    'r'					,    encoding='utf-8'	) as f:
															_snake_case						=					yaml.safe_load(lowerCAmelCase_	)
										if "compute_environment" not in config_dict:
															_snake_case						=					ComputeEnvironment.LOCAL_MACHINE

										if "mixed_precision" not in config_dict:
															_snake_case						=					'fp16' if ('fp16' in config_dict and config_dict['fp16']) else None
										if isinstance(config_dict['mixed_precision']					,    lowerCAmelCase_	) and not config_dict["mixed_precision"]:
															_snake_case						=					'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.
															_snake_case						=					config_dict.pop('dynamo_backend'	)
															_snake_case						=					{} if dynamo_backend == 'NO' else {'dynamo_backend': dynamo_backend}
										if "use_cpu" not in config_dict:
															_snake_case						=					False
										return cls(**lowerCAmelCase_	)




					def 						lowerCAmelCase      (		self					,    lowerCAmelCase_	)		->				List[str]:
										with open(lowerCAmelCase_					,    'w'					,    encoding='utf-8'	) as f:
															yaml.safe_dump(self.to_dict()					,    lowerCAmelCase_	)






					def 						lowerCAmelCase      (		self	)		->				Tuple:
										if isinstance(self.compute_environment					,    lowerCAmelCase_	):
															_snake_case						=					ComputeEnvironment(self.compute_environment	)
										if isinstance(self.distributed_type					,    lowerCAmelCase_	):
															if self.compute_environment == ComputeEnvironment.AMAZON_SAGEMAKER:
																				_snake_case						=					SageMakerDistributedType(self.distributed_type	)
															else:
																				_snake_case						=					DistributedType(self.distributed_type	)
										if self.dynamo_config is None:
															_snake_case						=					{}





@dataclass
class       UpperCamelCase_		(	_lowerCamelCase       ):
					lowerCAmelCase_				=						42
					lowerCAmelCase_				=						0
					lowerCAmelCase_				=						1
					lowerCAmelCase_				=						None
					lowerCAmelCase_				=						None
					lowerCAmelCase_				=						None
					lowerCAmelCase_				=						"static"
					lowerCAmelCase_				=						False
					lowerCAmelCase_				=						"main"

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

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

					# args for dynamo
					lowerCAmelCase_				=						None




					def 						lowerCAmelCase      (		self	)		->				Optional[Any]:
										if self.deepspeed_config is None:
															_snake_case						=					{}
										if self.fsdp_config is None:
															_snake_case						=					{}
										if self.megatron_lm_config is None:
															_snake_case						=					{}
										if self.ipex_config is None:
															_snake_case						=					{}
										return super().__post_init__()





@dataclass
class       UpperCamelCase_		(	_lowerCamelCase       ):
					lowerCAmelCase_				=						42
					lowerCAmelCase_				=						42
					lowerCAmelCase_				=						None
					lowerCAmelCase_				=						None
					lowerCAmelCase_				=						"us-east-1"
					lowerCAmelCase_				=						1
					lowerCAmelCase_				=						"all"
					lowerCAmelCase_				=						f"accelerate-sagemaker-{num_machines}"
					lowerCAmelCase_				=						SAGEMAKER_PYTORCH_VERSION
					lowerCAmelCase_				=						SAGEMAKER_TRANSFORMERS_VERSION
					lowerCAmelCase_				=						SAGEMAKER_PYTHON_VERSION
					lowerCAmelCase_				=						None
					lowerCAmelCase_				=						None
					lowerCAmelCase_				=						None
					lowerCAmelCase_				=						None



