






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)

lowerCamelCase       :       List[str]        =				[
    '''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	):

					'''simple docstring'''

					def 					lowerCAmelCase (     self :		int						,   __a :		str						,   __a :		bool						,   __a :		str = None						,   __a :		list = None							)	->     Optional[Any]:


												"""simple docstring"""

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



					def 					lowerCAmelCase (     self :		str							)	->     Any:


												"""simple docstring"""

												self.one_complete_example("""complete_nlp_example.py"""						,   __a							)
												self.one_complete_example("""complete_nlp_example.py"""						,   __a							)



					def 					lowerCAmelCase (     self :		Any							)	->     List[str]:


												"""simple docstring"""

												__lowercase					:							Optional[int]			=   os.path.abspath(os.path.join("""examples"""						,   """cv_example.py"""							)							)
												__lowercase					:							Union[str, Any]			=   [
												    """ """ * 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"""						,   __a						,   __a						,   __a							)
												self.one_complete_example("""complete_cv_example.py"""						,   __a						,   __a						,   __a							)







@mock.patch.dict(os.environ					,				{'''TESTING_MOCKED_DATALOADERS''': '''1'''}	)
class 						lowerCAmelCase   (       __a	):

					'''simple docstring'''

					_A  :	List[Any]     =					False



					@classmethod
					def 					lowerCAmelCase (     cls :		List[Any]							)	->     Dict:


												"""simple docstring"""

												super().setUpClass()
												__lowercase					:							Tuple			=   tempfile.mkdtemp()
												__lowercase					:							List[str]			=   os.path.join(cls._tmpdir						,   """default_config.yml"""							)

												write_basic_config(save_location=cls.configPath							)
												__lowercase					:							Tuple			=   ["""accelerate""", """launch""", """--config_file""", cls.configPath]



					@classmethod
					def 					lowerCAmelCase (     cls :		Any							)	->     Union[str, Any]:


												"""simple docstring"""

												super().tearDownClass()
												shutil.rmtree(cls._tmpdir							)



					def 					lowerCAmelCase (     self :		str							)	->     Dict:


												"""simple docstring"""

												__lowercase					:							str			=   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 					lowerCAmelCase (     self :		Any							)	->     List[str]:


												"""simple docstring"""

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



					def 					lowerCAmelCase (     self :		Union[str, Any]							)	->     str:


												"""simple docstring"""

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



					def 					lowerCAmelCase (     self :		List[Any]							)	->     Dict:


												"""simple docstring"""

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



					@slow
					def 					lowerCAmelCase (     self :		Optional[int]							)	->     Tuple:


												"""simple docstring"""

												__lowercase					:							Optional[Any]			=   """
        examples/by_feature/cross_validation.py
        --num_folds 2
        """.split()
												with mock.patch.dict(os.environ						,   {"""TESTING_MOCKED_DATALOADERS""": """0"""}							):
																			__lowercase					:							Optional[Any]			=   run_command(self._launch_args + testargs						,   return_stdout=__a							)
																			__lowercase					:							List[Any]			=   re.findall("""({.+})"""						,   __a							)
																			__lowercase					:							str			=   [r for r in results if """accuracy""" in r][-1]
																			__lowercase					:							Tuple			=   ast.literal_eval(__a							)
																			self.assertGreaterEqual(results["""accuracy"""]						,   0.75							)



					def 					lowerCAmelCase (     self :		Dict							)	->     Union[str, Any]:


												"""simple docstring"""

												__lowercase					:							Union[str, Any]			=   ["""examples/by_feature/multi_process_metrics.py"""]
												run_command(self._launch_args + testargs							)



					@require_trackers
					@mock.patch.dict(os.environ						,   {"""WANDB_MODE""": """offline"""}							)
					def 					lowerCAmelCase (     self :		Optional[Any]							)	->     Optional[int]:


												"""simple docstring"""

												with tempfile.TemporaryDirectory() as tmpdir:
																			__lowercase					:							Optional[int]			=   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(__a						,   """tracking"""							)							)							)



					def 					lowerCAmelCase (     self :		Union[str, Any]							)	->     List[Any]:


												"""simple docstring"""

												__lowercase					:							int			=   ["""examples/by_feature/gradient_accumulation.py"""]
												run_command(self._launch_args + testargs							)



					def 					lowerCAmelCase (     self :		Dict							)	->     Any:


												"""simple docstring"""

												__lowercase					:							Any			=   ["""examples/by_feature/local_sgd.py"""]
												run_command(self._launch_args + testargs							)







lowerCamelCase       :       Tuple        =				{'''a''': ['''c''', '''b'''], '''b''': ['''d''', '''e'''], '''c''': [], '''d''': [], '''e''': []}
lowerCamelCase       :       int        =				['''a''', '''b''', '''c''', '''d''', '''e''']
def 					snake_case_						(   lowerCAmelCase_				:  Optional[int]				,				lowerCAmelCase_				:  str				,				lowerCAmelCase_				:  List[Any]					):
							__lowercase					:							Dict			=   start
							# add current to visited
							visited.append(lowerCAmelCase_					)
							__lowercase					:							Dict			=   edges[current]
							for neighbor in neighbors:
														# if neighbor not in visited, visit
														if neighbor not in visited:
																					__lowercase					:							List[Any]			=   topological_sort(lowerCAmelCase_				,				lowerCAmelCase_				,				lowerCAmelCase_					)
    # if all neighbors visited add current to sort
							sort.append(lowerCAmelCase_					)
							# if all vertices haven't been visited select a new one to visit
							if len(lowerCAmelCase_					) != len(lowerCAmelCase_					):
														for vertice in vertices:
																					if vertice not in visited:
																												__lowercase					:							Tuple			=   topological_sort(lowerCAmelCase_				,				lowerCAmelCase_				,				lowerCAmelCase_					)
    # return sort
							return sort


if __name__ == "__main__":
	lowerCamelCase       :       Any        =				topological_sort('''a''', [], [])
	print(sort)