from __future__ import annotations

from random import random
from typing import Generic, TypeVar

A__           =							TypeVar("""KT""")
A__           =							TypeVar("""VT""")
class   _lowerCAmelCase		(     Generic[KT, VT]				):







							def __init__(				self     :    List[str]	,					__snake_case     :    KT | str = "root"	,					__snake_case     :    VT | None = None		):
										lowerCamelCase						:int						  =     key
										lowerCamelCase						:List[str]						  =     value
										lowerCamelCase						:list[Node[KT, VT]]						  =     []







							def __repr__(				self     :    str		):
										return F"Node({self.key}: {self.value})"







							@property
							def 				snake_case  (				self     :    int		):
										return len(self.forward		)


class   _lowerCAmelCase		(     Generic[KT, VT]				):







							def __init__(				self     :    List[str]	,					__snake_case     :    float = 0.5	,					__snake_case     :    int = 16		):
										lowerCamelCase						:Node[KT, VT]						  =     Node[KT, VT]()
										lowerCamelCase						:List[str]						  =     0
										lowerCamelCase						:Tuple						  =     p
										lowerCamelCase						:List[str]						  =     max_level







							def __str__(				self     :    Tuple		):
										lowerCamelCase						:Optional[Any]						  =     list(self		)

										if len(__snake_case		) == 0:
													return F"SkipList(level={self.level})"

										lowerCamelCase						:Dict						  =     max((len(str(__snake_case		)		) for item in items)	,					default=4		)
										lowerCamelCase						:Union[str, Any]						  =     max(__snake_case	,					4		) + 4

										lowerCamelCase						:Optional[Any]						  =     self.head
										lowerCamelCase						:Dict						  =     []

										lowerCamelCase						:Optional[Any]						  =     node.forward.copy()
										lines.append(F"[{node.key}]".ljust(__snake_case	,					'''-'''		) + '''* ''' * len(__snake_case		)		)
										lines.append(''' ''' * label_size + '''| ''' * len(__snake_case		)		)

										while len(node.forward		) != 0:
													lowerCamelCase						:int						  =     node.forward[0]

													lines.append(
													    F"[{node.key}]".ljust(__snake_case	,					'''-'''		)
													    + ''' '''.join(str(n.key		) if n.key == node.key else '''|''' for n in forwards		)		)
													lines.append(''' ''' * label_size + '''| ''' * len(__snake_case		)		)
													lowerCamelCase						:Tuple						  =     node.forward

										lines.append('''None'''.ljust(__snake_case		) + '''* ''' * len(__snake_case		)		)
										return F"SkipList(level={self.level})\n" + "\n".join(__snake_case		)







							def __iter__(				self     :    Optional[int]		):
										lowerCamelCase						:Tuple						  =     self.head

										while len(node.forward		) != 0:
													yield node.forward[0].key
													lowerCamelCase						:int						  =     node.forward[0]







							def 				snake_case  (				self     :    List[Any]		):
										lowerCamelCase						:int						  =     1
										while random() < self.p and level < self.max_level:
													level += 1

										return level







							def 				snake_case  (				self     :    int	,					__snake_case     :    Any		):
										lowerCamelCase						:List[Any]						  =     []

										lowerCamelCase						:Union[str, Any]						  =     self.head

										for i in reversed(range(self.level		)		):
													# i < node.level - When node level is lesser than `i` decrement `i`.
													# node.forward[i].key < key - Jumping to node with key value higher
													#                             or equal to searched key would result
													#                             in skipping searched key.
													while i < node.level and node.forward[i].key < key:
																lowerCamelCase						:Tuple						  =     node.forward[i]
													# Each leftmost node (relative to searched node) will potentially have to
													# be updated.
													update_vector.append(__snake_case		)

										update_vector.reverse()  # Note that we were inserting values in reverse order.

										# len(node.forward) != 0 - If current node doesn't contain any further
										#                          references then searched key is not present.
										# node.forward[0].key == key - Next node key should be equal to search key
										#                              if key is present.
										if len(node.forward		) != 0 and node.forward[0].key == key:
													return node.forward[0], update_vector
										else:
													return None, update_vector







							def 				snake_case  (				self     :    int	,					__snake_case     :    KT		):
										lowerCamelCase  ,    lowerCamelCase						:Tuple						  =     self._locate_node(__snake_case		)

										if node is not None:
													for i, update_node in enumerate(__snake_case		):
																# Remove or replace all references to removed node.
																if update_node.level > i and update_node.forward[i].key == key:
																			if node.level > i:
																						lowerCamelCase						:str						  =     node.forward[i]
																			else:
																						lowerCamelCase						:Union[str, Any]						  =     update_node.forward[:i]







							def 				snake_case  (				self     :    Dict	,					__snake_case     :    KT	,					__snake_case     :    VT		):
										lowerCamelCase  ,    lowerCamelCase						:Any						  =     self._locate_node(__snake_case		)
										if node is not None:
													lowerCamelCase						:Union[str, Any]						  =     value
										else:
													lowerCamelCase						:Union[str, Any]						  =     self.random_level()

													if level > self.level:
																# After level increase we have to add additional nodes to head.
																for _ in range(self.level - 1	,					__snake_case		):
																			update_vector.append(self.head		)
																lowerCamelCase						:Union[str, Any]						  =     level

													lowerCamelCase						:Any						  =     Node(__snake_case	,					__snake_case		)

													for i, update_node in enumerate(update_vector[:level]		):
																# Change references to pass through new node.
																if update_node.level > i:
																			new_node.forward.append(update_node.forward[i]		)

																if update_node.level < i + 1:
																			update_node.forward.append(__snake_case		)
																else:
																			lowerCamelCase						:Optional[int]						  =     new_node







							def 				snake_case  (				self     :    Optional[Any]	,					__snake_case     :    VT		):
										lowerCamelCase  ,    lowerCamelCase						:List[str]						  =     self._locate_node(__snake_case		)

										if node is not None:
													return node.value

										return None





def  _lowerCamelCase					(   ):
			lowerCamelCase						:Optional[Any]						  =     SkipList()
			skip_list.insert('''Key1'''						,			3)
			skip_list.insert('''Key2'''						,			12)
			skip_list.insert('''Key3'''						,			41)
			skip_list.insert('''Key4'''						,			-19)

			lowerCamelCase						:Any						  =     skip_list.head
			lowerCamelCase						:List[Any]						  =     {}
			while node.level != 0:
						lowerCamelCase						:List[Any]						  =     node.forward[0]
						lowerCamelCase						:Optional[int]						  =     node.value

			assert len(a_) == 4
			assert all_values["Key1"] == 3
			assert all_values["Key2"] == 12
			assert all_values["Key3"] == 41
			assert all_values["Key4"] == -19





def  _lowerCamelCase					(   ):
			lowerCamelCase						:Optional[int]						  =     SkipList()
			skip_list.insert('''Key1'''						,			10)
			skip_list.insert('''Key1'''						,			12)

			skip_list.insert('''Key5'''						,			7)
			skip_list.insert('''Key7'''						,			10)
			skip_list.insert('''Key10'''						,			5)

			skip_list.insert('''Key7'''						,			7)
			skip_list.insert('''Key5'''						,			5)
			skip_list.insert('''Key10'''						,			10)

			lowerCamelCase						:Tuple						  =     skip_list.head
			lowerCamelCase						:int						  =     {}
			while node.level != 0:
						lowerCamelCase						:Tuple						  =     node.forward[0]
						lowerCamelCase						:Dict						  =     node.value

			if len(a_) != 4:
						print()
			assert len(a_) == 4
			assert all_values["Key1"] == 12
			assert all_values["Key7"] == 7
			assert all_values["Key5"] == 5
			assert all_values["Key10"] == 10





def  _lowerCamelCase					(   ):
			lowerCamelCase						:List[str]						  =     SkipList()
			assert skip_list.find('''Some key''') is None





def  _lowerCamelCase					(   ):
			lowerCamelCase						:Optional[int]						  =     SkipList()

			skip_list.insert('''Key2'''						,			20)
			assert skip_list.find('''Key2''') == 20

			skip_list.insert('''Some Key'''						,			10)
			skip_list.insert('''Key2'''						,			8)
			skip_list.insert('''V'''						,			13)

			assert skip_list.find('''Y''') is None
			assert skip_list.find('''Key2''') == 8
			assert skip_list.find('''Some Key''') == 10
			assert skip_list.find('''V''') == 13





def  _lowerCamelCase					(   ):
			lowerCamelCase						:Union[str, Any]						  =     SkipList()
			skip_list.delete('''Some key''')

			assert len(skip_list.head.forward) == 0





def  _lowerCamelCase					(   ):
			lowerCamelCase						:str						  =     SkipList()

			skip_list.insert('''Key1'''						,			12)
			skip_list.insert('''V'''						,			13)
			skip_list.insert('''X'''						,			14)
			skip_list.insert('''Key2'''						,			15)

			skip_list.delete('''V''')
			skip_list.delete('''Key2''')

			assert skip_list.find('''V''') is None
			assert skip_list.find('''Key2''') is None





def  _lowerCamelCase					(   ):
			lowerCamelCase						:Tuple						  =     SkipList()

			skip_list.insert('''Key1'''						,			12)
			skip_list.insert('''V'''						,			13)
			skip_list.insert('''X'''						,			14)
			skip_list.insert('''Key2'''						,			15)

			skip_list.delete('''V''')
			assert skip_list.find('''V''') is None
			assert skip_list.find('''X''') == 14
			assert skip_list.find('''Key1''') == 12
			assert skip_list.find('''Key2''') == 15

			skip_list.delete('''X''')
			assert skip_list.find('''V''') is None
			assert skip_list.find('''X''') is None
			assert skip_list.find('''Key1''') == 12
			assert skip_list.find('''Key2''') == 15

			skip_list.delete('''Key1''')
			assert skip_list.find('''V''') is None
			assert skip_list.find('''X''') is None
			assert skip_list.find('''Key1''') is None
			assert skip_list.find('''Key2''') == 15

			skip_list.delete('''Key2''')
			assert skip_list.find('''V''') is None
			assert skip_list.find('''X''') is None
			assert skip_list.find('''Key1''') is None
			assert skip_list.find('''Key2''') is None





def  _lowerCamelCase					(   ):
			lowerCamelCase						:Union[str, Any]						  =     SkipList()

			skip_list.insert('''Key1'''						,			12)
			skip_list.insert('''V'''						,			13)
			skip_list.insert('''X'''						,			1_42)
			skip_list.insert('''Key2'''						,			15)

			skip_list.delete('''X''')

			def traverse_keys(a_				: Dict):
						yield node.key
						for forward_node in node.forward:
									yield from traverse_keys(a_)

			assert len(set(traverse_keys(skip_list.head))) == 4





def  _lowerCamelCase					(   ):
			def is_sorted(a_				: List[str]):
						return all(next_item >= item for item, next_item in zip(a_						,			lst[1:]))

			lowerCamelCase						:str						  =     SkipList()
			for i in range(10):
						skip_list.insert(a_						,			a_)
			assert is_sorted(list(a_))
			skip_list.delete(5)
			skip_list.delete(8)
			skip_list.delete(2)
			assert is_sorted(list(a_))
			skip_list.insert(-12						,			-12)
			skip_list.insert(77						,			77)
			assert is_sorted(list(a_))





def  _lowerCamelCase					(   ):
			for _ in range(1_00):
						# Repeat test 100 times due to the probabilistic nature of skip list
						# random values == random bugs
						test_insert()
						test_insert_overrides_existing_value()

						test_searching_empty_list_returns_none()
						test_search()

						test_deleting_item_from_empty_list_do_nothing()
						test_deleted_items_are_not_founded_by_find_method()
						test_delete_removes_only_given_key()
						test_delete_doesnt_leave_dead_nodes()

						test_iter_always_yields_sorted_values()





def  _lowerCamelCase					(   ):
			lowerCamelCase						:Any						  =     SkipList()
			skip_list.insert(2						,			'''2''')
			skip_list.insert(4						,			'''4''')
			skip_list.insert(6						,			'''4''')
			skip_list.insert(4						,			'''5''')
			skip_list.insert(8						,			'''4''')
			skip_list.insert(9						,			'''4''')

			skip_list.delete(4)

			print(a_)


if __name__ == "__main__":
			import doctest

			doctest.testmod()
			main()




import ast
import os
import re
import shutil
import tempfile
import unittest
from unittest import mock

import torch

from accelerate.test_utils.examples import compare_against_test
from accelerate.test_utils.testing import TempDirTestCase, require_trackers, run_command, slow
from accelerate.utils import write_basic_config


# DataLoaders built from `test_samples/MRPC` for quick testing
# Should mock `{script_name}.get_dataloaders` via:
# @mock.patch("{script_name}.get_dataloaders", mocked_dataloaders)

A__           =							[
    """cross_validation.py""",
    """gradient_accumulation.py""",
    """local_sgd.py""",
    """multi_process_metrics.py""",
    """memory.py""",
    """automatic_gradient_accumulation.py""",
    """fsdp_with_peak_mem_tracking.py""",
    """deepspeed_with_config_support.py""",
    """megatron_lm_gpt_pretraining.py""",
]
class   _lowerCAmelCase		(     unittest.TestCase				):







							def 				snake_case  (				self     :    Any	,					__snake_case     :    str	,					__snake_case     :    bool	,					__snake_case     :    str = None	,					__snake_case     :    list = None		):
										lowerCamelCase						:Tuple						  =     None
										lowerCamelCase						:Tuple						  =     os.path.abspath(os.path.join('''examples'''	,					'''by_feature'''		)		)
										lowerCamelCase						:Optional[int]						  =     os.path.abspath('''examples'''		)
										for item in os.listdir(__snake_case		):
													if item not in EXCLUDE_EXAMPLES:
																lowerCamelCase						:Optional[int]						  =     os.path.join(__snake_case	,					__snake_case		)
																if os.path.isfile(__snake_case		) and ".py" in item_path:
																			with self.subTest(
																			    tested_script=__snake_case	,					feature_script=__snake_case	,					tested_section='''main()''' if parser_only else '''training_function()'''	,					):
																						lowerCamelCase						:Union[str, Any]						  =     compare_against_test(
																						    os.path.join(__snake_case	,					__snake_case		)	,					__snake_case	,					__snake_case	,					__snake_case		)
																						lowerCamelCase						:int						  =     '''\n'''.join(__snake_case		)
																						if special_strings is not None:
																									for string in special_strings:
																												lowerCamelCase						:int						  =     diff.replace(__snake_case	,					''''''		)
																						self.assertEqual(__snake_case	,					''''''		)







							def 				snake_case  (				self     :    Dict		):
										self.one_complete_example('''complete_nlp_example.py'''	,					__snake_case		)
										self.one_complete_example('''complete_nlp_example.py'''	,					__snake_case		)







							def 				snake_case  (				self     :    Optional[Any]		):
										lowerCamelCase						:Union[str, Any]						  =     os.path.abspath(os.path.join('''examples'''	,					'''cv_example.py'''		)		)
										lowerCamelCase						:Optional[int]						  =     [
										    ''' ''' * 16 + '''{\n\n''',
										    ''' ''' * 20 + '''"accuracy": eval_metric["accuracy"],\n\n''',
										    ''' ''' * 20 + '''"f1": eval_metric["f1"],\n\n''',
										    ''' ''' * 20 + '''"train_loss": total_loss.item() / len(train_dataloader),\n\n''',
										    ''' ''' * 20 + '''"epoch": epoch,\n\n''',
										    ''' ''' * 16 + '''},\n\n''',
										    ''' ''' * 16 + '''step=epoch,\n''',
										    ''' ''' * 12,
										    ''' ''' * 8 + '''for step, batch in enumerate(active_dataloader):\n''',
										]
										self.one_complete_example('''complete_cv_example.py'''	,					__snake_case	,					__snake_case	,					__snake_case		)
										self.one_complete_example('''complete_cv_example.py'''	,					__snake_case	,					__snake_case	,					__snake_case		)


@mock.patch.dict(os.environ      ,   {'TESTING_MOCKED_DATALOADERS': '1'}				)
class   _lowerCAmelCase		(     __SCREAMING_SNAKE_CASE				):
							_UpperCAmelCase						    =     False







							@classmethod
							def 				snake_case  (				cls     :    Optional[Any]		):
										super().setUpClass()
										lowerCamelCase						:Any						  =     tempfile.mkdtemp()
										lowerCamelCase						:Optional[int]						  =     os.path.join(cls._tmpdir	,					'''default_config.yml'''		)

										write_basic_config(save_location=cls.configPath		)
										lowerCamelCase						:List[str]						  =     ['''accelerate''', '''launch''', '''--config_file''', cls.configPath]







							@classmethod
							def 				snake_case  (				cls     :    Dict		):
										super().tearDownClass()
										shutil.rmtree(cls._tmpdir		)







							def 				snake_case  (				self     :    int		):
										lowerCamelCase						:Any						  =     F"\n        examples/by_feature/checkpointing.py\n        --checkpointing_steps epoch\n        --output_dir {self.tmpdir}\n        ".split()
										run_command(self._launch_args + testargs		)
										self.assertTrue(os.path.exists(os.path.join(self.tmpdir	,					'''epoch_0'''		)		)		)







							def 				snake_case  (				self     :    List[Any]		):
										lowerCamelCase						:Tuple						  =     F"\n        examples/by_feature/checkpointing.py\n        --checkpointing_steps 1\n        --output_dir {self.tmpdir}\n        ".split()
										lowerCamelCase						:List[Any]						  =     run_command(self._launch_args + testargs		)
										self.assertTrue(os.path.exists(os.path.join(self.tmpdir	,					'''step_2'''		)		)		)







							def 				snake_case  (				self     :    List[str]		):
										lowerCamelCase						:Dict						  =     F"\n        examples/by_feature/checkpointing.py\n        --resume_from_checkpoint {os.path.join(self.tmpdir	,					'epoch_0'		)}\n        ".split()
										lowerCamelCase						:Dict						  =     run_command(self._launch_args + testargs	,					return_stdout=__snake_case		)
										self.assertNotIn('''epoch 0:'''	,					__snake_case		)
										self.assertIn('''epoch 1:'''	,					__snake_case		)







							def 				snake_case  (				self     :    str		):
										lowerCamelCase						:List[Any]						  =     F"\n        examples/by_feature/checkpointing.py\n        --resume_from_checkpoint {os.path.join(self.tmpdir	,					'step_2'		)}\n        ".split()
										lowerCamelCase						:Optional[int]						  =     run_command(self._launch_args + testargs	,					return_stdout=__snake_case		)
										if torch.cuda.is_available():
													lowerCamelCase						:Union[str, Any]						  =     torch.cuda.device_count()
										else:
													lowerCamelCase						:Dict						  =     1
										if num_processes > 1:
													self.assertNotIn('''epoch 0:'''	,					__snake_case		)
													self.assertIn('''epoch 1:'''	,					__snake_case		)
										else:
													self.assertIn('''epoch 0:'''	,					__snake_case		)
													self.assertIn('''epoch 1:'''	,					__snake_case		)







							@slow
							def 				snake_case  (				self     :    Any		):
										lowerCamelCase						:Tuple						  =     '''
        examples/by_feature/cross_validation.py
        --num_folds 2
        '''.split()
										with mock.patch.dict(os.environ	,					{'''TESTING_MOCKED_DATALOADERS''': '''0'''}		):
													lowerCamelCase						:Dict						  =     run_command(self._launch_args + testargs	,					return_stdout=__snake_case		)
													lowerCamelCase						:Tuple						  =     re.findall('''({.+})'''	,					__snake_case		)
													lowerCamelCase						:Optional[Any]						  =     [r for r in results if '''accuracy''' in r][-1]
													lowerCamelCase						:List[str]						  =     ast.literal_eval(__snake_case		)
													self.assertGreaterEqual(results['''accuracy''']	,					0.7_5		)







							def 				snake_case  (				self     :    int		):
										lowerCamelCase						:Dict						  =     ['''examples/by_feature/multi_process_metrics.py''']
										run_command(self._launch_args + testargs		)







							@require_trackers
							@mock.patch.dict(os.environ	,					{'''WANDB_MODE''': '''offline'''}		)
							def 				snake_case  (				self     :    Any		):
										with tempfile.TemporaryDirectory() as tmpdir:
													lowerCamelCase						:Tuple						  =     F"\n            examples/by_feature/tracking.py\n            --with_tracking\n            --project_dir {tmpdir}\n            ".split()
													run_command(self._launch_args + testargs		)
													self.assertTrue(os.path.exists(os.path.join(__snake_case	,					'''tracking'''		)		)		)







							def 				snake_case  (				self     :    Tuple		):
										lowerCamelCase						:Tuple						  =     ['''examples/by_feature/gradient_accumulation.py''']
										run_command(self._launch_args + testargs		)







							def 				snake_case  (				self     :    Optional[Any]		):
										lowerCamelCase						:int						  =     ['''examples/by_feature/local_sgd.py''']
										run_command(self._launch_args + testargs		)



