



import argparse
import shutil
from pathlib import Path

from tqdm import tqdm

from transformers import AutoTokenizer



def 			_lowerCAmelCase       (					__lowerCAmelCase  ,  __lowerCAmelCase  ,  __lowerCAmelCase  ,  __lowerCAmelCase=1024      )   ->					int:


				"""simple docstring"""

				snake_case__		, snake_case__	:      Dict     		=	[], []

				snake_case__	:      Optional[int]     		=	list(zip(lowerCamelCase_  ,  lowerCamelCase_      )      )
				snake_case__		, snake_case__	:      List[Any]     		=	sorted_examples[0]

				def is_too_big(__lowerCAmelCase      ):
								return tok(lowerCamelCase_  ,  return_tensors='''pt'''      ).input_ids.shape[1] > max_tokens

				for src, tgt in tqdm(sorted_examples[1:]      ):
								snake_case__	:      Tuple     		=	new_src + ''' ''' + src
								snake_case__	:      str     		=	new_tgt + ''' ''' + tgt
								if is_too_big(lowerCamelCase_      ) or is_too_big(lowerCamelCase_      ):  # cant fit, finalize example
												finished_src.append(lowerCamelCase_      )
												finished_tgt.append(lowerCamelCase_      )
												snake_case__		, snake_case__	:      str     		=	src, tgt
								else:  # can fit, keep adding
												snake_case__		, snake_case__	:      Union[str, Any]     		=	cand_src, cand_tgt

    # cleanup
				if new_src:
								assert new_tgt
								finished_src.append(lowerCamelCase_      )
								finished_tgt.append(lowerCamelCase_      )
				return finished_src, finished_tgt



def 			_lowerCAmelCase       (					__lowerCAmelCase  ,  __lowerCAmelCase  ,  __lowerCAmelCase  ,  __lowerCAmelCase      )   ->					Any:


				"""simple docstring"""

				snake_case__	:      Any     		=	Path(lowerCamelCase_      )
				save_path.mkdir(exist_ok=lowerCamelCase_      )
				for split in ["train"]:
								snake_case__		, snake_case__	:      Any     		=	data_dir / f"""{split}.source""", data_dir / f"""{split}.target"""
								snake_case__	:      Optional[int]     		=	[x.rstrip() for x in Path(lowerCamelCase_      ).open().readlines()]
								snake_case__	:      Dict     		=	[x.rstrip() for x in Path(lowerCamelCase_      ).open().readlines()]
								snake_case__		, snake_case__	:      List[str]     		=	pack_examples(lowerCamelCase_  ,  lowerCamelCase_  ,  lowerCamelCase_  ,  lowerCamelCase_      )
								print(f"""packed {split} split from {len(lowerCamelCase_      )} examples -> {len(lowerCamelCase_      )}."""      )
								Path(save_path / f"""{split}.source"""      ).open('''w'''      ).write('''\n'''.join(lowerCamelCase_      )      )
								Path(save_path / f"""{split}.target"""      ).open('''w'''      ).write('''\n'''.join(lowerCamelCase_      )      )
				for split in ["val", "test"]:
								snake_case__		, snake_case__	:      List[str]     		=	data_dir / f"""{split}.source""", data_dir / f"""{split}.target"""
								shutil.copyfile(lowerCamelCase_  ,  save_path / f"""{split}.source"""      )
								shutil.copyfile(lowerCamelCase_  ,  save_path / f"""{split}.target"""      )



def 			_lowerCAmelCase       (					)   ->					int:


				"""simple docstring"""

				snake_case__	:      Dict     		=	argparse.ArgumentParser()
				parser.add_argument('''--tok_name'''  ,  type=lowerCamelCase_  ,  help='''like facebook/bart-large-cnn,t5-base, etc.'''      )
				parser.add_argument('''--max_seq_len'''  ,  type=lowerCamelCase_  ,  default=128      )
				parser.add_argument('''--data_dir'''  ,  type=lowerCamelCase_      )
				parser.add_argument('''--save_path'''  ,  type=lowerCamelCase_      )
				snake_case__	:      int     		=	parser.parse_args()
				snake_case__	:      Union[str, Any]     		=	AutoTokenizer.from_pretrained(args.tok_name      )
				return pack_data_dir(lowerCamelCase_  ,  Path(args.data_dir      )  ,  args.max_seq_len  ,  args.save_path      )


if __name__ == "__main__":
				packer_cli()









from math import asin, atan, cos, radians, sin, sqrt, tan

A__	:			Optional[int]			   = 637_8137.0
A__	:			List[str]			   = 635_6752.31_4245
A__	:			Union[str, Any]			   = 6_37_81_37






def   a			(						lowerCamelCase_		,   lowerCamelCase_		,   lowerCamelCase_		,   lowerCamelCase_				):






				'''simple docstring'''
				lowercase__    =			(AXIS_A - AXIS_B) / AXIS_A
				lowercase__    =			atan((1 - flattening) * tan(radians(lowerCamelCase_				)				)				)
				lowercase__    =			atan((1 - flattening) * tan(radians(lowerCamelCase_				)				)				)
				lowercase__    =			radians(lowerCamelCase_				)
				lowercase__    =			radians(lowerCamelCase_				)
				# Equation
				lowercase__    =			sin((phi_a - phi_a) / 2				)
				lowercase__    =			sin((lambda_a - lambda_a) / 2				)
				# Square both values
				sin_sq_phi *= sin_sq_phi
				sin_sq_lambda *= sin_sq_lambda
				lowercase__    =			sqrt(sin_sq_phi + (cos(lowerCamelCase_				) * cos(lowerCamelCase_				) * sin_sq_lambda)				)
				return 2 * RADIUS * asin(lowerCamelCase_				)


if __name__ == "__main__":
							import doctest

							doctest.testmod()




